P-51 Mustang ARF Assembly mAnuAl

P-51 Mustang ARF Assembly mAnuAl
ƒ
5.
P-51 Mustang ARF
Assembly manual
Specifications
Wingspan: . .............. 58.25 in (1480mm)
Length: . ................... 50.5 in (1284mm)
Wing Area: ............... 603 sq in (38.92 sq dm)
Weight: .................... 6.5–7 lb (2.9–3.2 kg)
Radio: ...................... 4-channel w/5 servos
Engine: . ................... Evolution TPS
Table of Contents
Contents of Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Radio and Engine Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Covering Colors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Field Equipment Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Optional Field Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Additional Required Tools and Adhesives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Limited Warranty & Limits of Liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Questions, Assistance, and Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Questions or Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Inspection or Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Warranty Inspection and Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Non-Warranty Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Before Starting Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Using the Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Section 1: Hinging the Ailerons and Flaps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Section 2: Aileron Servo Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Section 3: Installing the Aileron Linkage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Section 4: Assembling the Wing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Section 5: Installing the Landing Gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Section 6: Installing the Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Section 7: Cowling and Fuel Tank Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Section 8: Installing the Propeller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Section 9: Installing the Flap Linkage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Section 10: Radio and Linkage Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Section 11: Preparing the Rudder Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Section 12: Preparing the Stabilizer Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Section 12: Installing the Tail Surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Section 13: Attaching the Wing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Section 14: Final Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Section 15: Centering the Control Surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Section 16: Checking the Control Surface Directions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Section 17: Checking the Control Throw Amounts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Section 18: Adjusting the Throttle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Section 19: Balancing Your P-51 ARF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Section 20: Flight Preparations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Section 21: Maintaining Your P-51 Mustang ARF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Section 22: Progressing With Your Flying Skills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Section 23: Adding a Flap Servo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
2006 Official AMA National Model Aircraft Safety Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Contents of Kit
1
6
5
11
7
10
9
2
3
8
4
Replacement Parts
1. Fuselage
2. Wing w/Aluminum Tube
3. Belly scoop
4. Tail set
5. Canopy
6. Cowl
7. Landing Gear Set w/Wheels
and Speed Brakes
8. Aluminum Wing Tube
9. Droops
10. Exhausts
11. Propeller
Items not shown
Speed Brake Set
Pushrod Set
Decal Set
HAN2826
HAN2827
HAN2828
HAN2829
HAN2830
HAN2831
HAN2832
HAN2833
HAN2835
HAN2836
EVOE100P
HAN2838
HAN2837
HAN2834
Radio and Engine Requirements
Recommended Radio Equipment
• 4-channel radio system (minimum)
• 5 standard servos (JRPS537 recommended or equivalent)
• Aileron Extension 12”, Silver (JRPA114) (2)
• Y-Harness, Heavy-Duty (JRPA135)
• Receiver
• 600mAh Rx Battery Pack (JRPB600)
• Switch harness
Evolution .46NT
EVOE0460
Recommended JR Systems
• PCM10X
• XP8103
• X-378
• XP662
• XF631
Recommended Engines
• .40–.48 2-stroke
• .40–.82 4-stroke
JR XP6102
Covering Colors
• Black HANU874
• Silver HANU881
• White
HANU870
• Dark Yellow HANU889
Field Equipment Required
• Fuel (10%–15% nitro content)
• Glow Plug Igniter with Charger (HAN7101)
• Manual Fuel Pump (HAN118)
• Glow Plug Wrench (HAN2510)
• Glow Plug (HAN3001/3006)
or • Start-Up Field Pack (HANSTART)
Optional Field Equipment
• 4-Way Wrench (DUB701)
• Cleaner & towels
• Blue Block After Run Oil (EVOX1000)
• 12V 7Ah Sealed Battery (HAN102)
• Fieldmate (HAN117)
• Extra Glow Plugs (HAN3001/3006)
• Power Panel (HAN106)
• PowerPro 12V Starter (HAN161)
Additional Required Tools and Adhesives
Tools
• Drill
• Adjustable wrench
• Hobby knife
• Phillips screwdriver
• Ruler
• Flat blade screwdriver
Adhesives
• 6-minute epoxy (HAN8000)
• Thin CA
Other Required Items
• Epoxy brushes
• Measuring device (e.g. ruler, tape measure)
• Paper towels
• Masking tape
• Sandpaper
• Sealing Iron (HAN101)
• Sealing Iron Sock (HAN141)
• Petroleum jelly
• Card stock
• Drill bits: 1/16” (1.5mm), 5/64” (2mm), 3/32” (2.5mm)
1/8” (3mm)
• Hex wrench: 3/32” (2.5mm)
• Hobby scissors
• Pliers
• Clamps
• T-pins
• 30-minute epoxy (HAN8002)
• Canopy glue
• Felt-tipped pen or pencil
• Mixing sticks for epoxy
• Rubbing alcohol
• Sanding bar
• Rotary tool w/sanding drum
• Covering Glove (HAN150)
• Toothpicks
• String or Unwaxed dental floss
Limited Warranty & Limits of Liability
Pursuant to this Limited Warranty, Horizon Hobby, Inc. will, at its option, (i) repair or (ii) replace, any product determined
by Horizon Hobby, Inc. to be defective. In the event of a defect, these are your exclusive remedies.
This warranty does not cover cosmetic damage or damage due to acts of God, accident, misuse, abuse, negligence,
commercial use, or modification of or to any part of the product. This warranty does not cover damage due to improper
installation, operation, maintenance, or attempted repair by anyone other than an authorized Horizon Hobby, Inc. service
center. This warranty is limited to the original purchaser and is not transferable. In no case shall Horizon Hobby’s
liability exceed the original cost of the purchased product and will not cover consequential, incidental or collateral
damage. Horizon Hobby, Inc. reserves the right to inspect any and all equipment involved in a warranty claim. Repair
or replacement decisions are at the sole discretion of Horizon Hobby, Inc. Further, Horizon Hobby reserves the right to
change or modify this warranty without notice.
REPAIR OR REPLACEMENT AS PROVIDED UNDER THIS WARRANTY IS THE EXCLUSIVE REMEDY OF THE CONSUMER.
HORIZON HOBBY, INC. SHALL NOT BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES.
As Horizon Hobby, Inc. has no control over use, setup, final assembly, modification or misuse, no liability shall be
assumed nor accepted for any resulting damage or injury. By the act of use, setup or assembly, the user accepts all
resulting liability.
If you as the purchaser or user are not prepared to accept the liability associated with the use of this product, you are
advised to return this product immediately in new and unused condition to the place of purchase.
Safety Precautions
This is a sophisticated hobby product and not a toy. It must be operated with caution and common sense and requires
some basic mechanical ability. Failure to operate this product in a safe and responsible manner could result in injury or
damage to the product or other property. This product is not intended for use by children without direct adult supervision.
The product manual contains instructions for safety, operation and maintenance. It is essential to read and follow all
the instructions and warnings in the manual, prior to assembly, setup or use, in order to operate correctly and avoid
damage or injury.
Questions, Assistance, and Repairs
Your local hobby store and/or place of purchase cannot provide warranty support or repair. Once assembly, setup or use
of the product has been started, you must contact Horizon Hobby, Inc. directly. This will enable Horizon to better answer
your questions and service you in the event that you may need any assistance.
Questions or Assistance
For questions or assistance, please direct your email to [email protected], or call 877.504.0233 toll
free to speak to a service technician.
Inspection or Repairs
If your product needs to be inspected or repaired, please call for a Return Merchandise Authorization (RMA). Pack the
product securely using a shipping carton. Please note that original boxes may be included, but are not designed to
withstand the rigors of shipping without additional protection. Ship via a carrier that provides tracking and insurance for
lost or damaged parcels, as Horizon Hobby, Inc. is not responsible for merchandise until it arrives and is accepted at
our facility. Include your complete name, address, phone number where you can be reached during business days, RMA
number, and a brief summary of the problem. Be sure your name, address, and RMA number are clearly written on the
shipping carton.
Warranty Inspection and Repairs
To receive warranty service, you must include your original sales receipt verifying the proof-of-purchase date. Providing
warranty conditions have been met, your product will be repaired or replaced free of charge. Repair or replacement
decisions are at the sole discretion of Horizon Hobby.
Non-Warranty Repairs
Should your repair not be covered by warranty and the expense exceeds 50% of the retail purchase cost, you will be
provided with an estimate advising you of your options. You will be billed for any return freight for non-warranty repairs.
Please advise us of your preferred method of payment. Horizon Hobby accepts money orders and cashiers checks, as
well as Visa, MasterCard, American Express, and Discover cards. If you choose to pay by credit card, please include your
credit card number and expiration date. Any repair left unpaid or unclaimed after 90 days will be considered abandoned
and will be disposed of accordingly.
Electronics and engines requiring inspection or repair should be shipped to the following address (freight prepaid):
Horizon Service Center
4105 Fieldstone Road
Champaign, Illinois 61822
All other products requiring inspection or repair should be shipped to the following address (freight prepaid):
Horizon Product Support
4105 Fieldstone Road
Champaign, Illinois 61822
Warranty Information
Horizon Hobby, Inc. guarantees this kit to be free from defects in both material and workmanship at the date of purchase.
This warranty does not cover any parts damage by use or modification. In no case shall Horizon Hobby’s liability exceed
the original cost of the purchased kit. Further, Horizon Hobby reserves the right to change or modify this warranty without
notice. In that Horizon Hobby has no control over the final assembly or material used for the final assembly, no liability
shall be assumed nor accepted for any damage resulting from the use by the user of the final user-assembled product. By
the act of using the user-assembled product, the user accepts all resulting liability.
Once assembly of the model has been started, you must contact Horizon Hobby, Inc. directly regarding any warranty
question that you have. Please do not contact your local hobby shop regarding warranty issues, even if that is where you
purchased it. This will enable Horizon to better answer your questions and service you in the event that you may need any
assistance. If the buyer is not prepared to accept the liability associated with the use of this product, the buyer is advised
to return this kit immediately in new and unused condition to the place of purchase.
Horizon Hobby
4105 Fieldstone Road
Champaign, Illinois 61822
(217) 355-9511
Warning
An RC aircraft is not a toy! If misused, it can cause serious bodily harm and damage to property. Fly only in open areas,
preferably at AMA (Academy of Model Aeronautics) approved flying sites, following all instructions included with your
radio and engine.
Before Starting Assembly
Before beginning the assembly of your P-51 Mustang ARF, remove each part from its bag for inspection. Closely inspect
the fuselage, wing panels, rudder and stabilizer for damage. If you find any damaged or missing parts, contact the place of
purchase.
If you find any wrinkles in the covering, use a heat gun or covering iron to remove them. Use caution while working
around areas where the colors overlap to prevent separating the colors.
HAN100 – Heat Gun
HAN101 – Sealing Iron
HAN150 – Covering Glove
HAN141 – Sealing Iron Sock
Using the Manual
This manual is divided into sections to help make assembly easier to understand, and to provide breaks between each
major section. In addition, check boxes have been placed next to each step to keep track of each step completed. Steps
with a single box () are performed once, while steps with two boxes ( ) indicate that the step will require
repeating, such as for a right or left wing panel, two servos, etc. Remember to take your time and follow the directions.
Section 1: Hinging the Ailerons and Flaps
Required Items:
• Wing (right and left)
• Flap (right and left
• CA hinge (12)
  Step 2
• Aileron (right and left)
Required Tools and Adhesives
• T-pins
• Drill
• Drill bit: 1/16" (1.5mm) • Thin CA
• 6-minute epoxy
• Sandpaper
• Paper towel
• Rubbing alcohol
• Mixing stick
• Toothpick
Drill a 1/16" (1.5mm) hole into the center of the three
aileron hinge slots. This creates a tunnel so the thin CA
used to glue the hinges can fully penetrate the hinge.
Repeat the process for the hinge slots in the wing as well.
  Step 1
Remove the tape holding the flap and aileron on the
wing. Locate three hinges and place a T-pin in the center
of each hinge. This will help center the hinge when slid
into the wing.
  Step 3
Slide the three hinges into the slots in the aileron.
Align the slot in the hinge with the hole drilled in the
previous step.
Section 1: Hinging the Ailerons and Flaps
  Step 4
  Step 6
Slide the aileron into position on the wing by guiding the
hinges into the hinge slots in the wing. Push the aileron
so there is little to no gap between the aileron hinge line.
Remove the T-pins from the hinges. Deflect the aileron
slightly without changing the hinge gap between the
aileron and wing. Apply thin CA to each of the hinges
and allow it to soak into the hinge. Do not use accelerator
as it will not allow the CA to soak into the hinge. Make
sure to apply enough CA to fully soak the hinge,
both top and bottom.
  Step 5
Check the position of the aileron in relationship to the
wing tip. It must be as close as possible and still be
able to move without rubbing against the wing tip. If
it is not close enough to the wing tip it may interfere
with the flap operation.
  Step 7
Once the CA has fully cured, gently pull on the aileron to
make sure the hinges are glued securely to both the wing
and aileron. Use care not to crush the wing or aileron.
Section 1: Hinging the Ailerons and Flaps
  Step 8
  Step 9
Flex the aileron up and down a number of times to break
in the hinges.
Use a piece of sandpaper to roughen the flap linkage
where it will extend into the flap. Use rubbing alcohol and
a paper towel to clean any residual dirt from the linkage.
This is done to give the epoxy a surface to hold onto when
the flap linkage is epoxied into the flap.
  Step 10
Prepare three more hinges using the technique in Step 1.
Drill 1/16" (1.5mm) holes in the center of each hinge slot,
both the wing and flap using the same technique as Step
2. Slide the hinges into the flap, centering the slot in the
hinge with the hole drilled in the center of the slot.
10
Section 1: Hinging the Ailerons and Flaps
  Step 11
  Step 13
Cut a piece of plastic from one of the bags the wing was
packaged in. Tape the plastic so it is between the wing and
flap linkage, but does not cover the hinge slot. This will
keep you from gluing the flap linkage to the wing in the
following steps.
Once the fit has been checked, remove the flap from the
wing. Mix about a tablespoon of 6-minute epoxy and
apply it to the flap linkage. Use a toothpick to apply the
epoxy into the hole and slot in the flap. Slide the flap in
position and check the movement as described in Step 12.
  Step 14
  Step 12
Slide the flap in position. Check that it can move freely
without rubbing against the aileron or wing. The flap
linkage will go into the pre-drilled hole in the flap, and the
hinges into the slots in the wing.
Once the epoxy has cured, apply CA to the flap hinges as
described back in Step 6 for the aileron hinges. The flap
may not deflect very far upwards so do not force it to do
so. Remember to apply CA to both the top and bottom.
  Step 15
Note: You will need to work quickly for the
following step. Be prepared to position the
flap as soon as the epoxy has been applied as
described.
Remove the plastic taped onto the wing back in Step 11.
Move the flap down, and up if possible, to break in the
flap hinges.
 Step 16
Repeat Steps 1 through 15 to install the remaining aileron
and flap to the remaining wing panel.
11
Section 2: Aileron Servo Installation
Required Items:
• Wing (right and left)
• Aileron servo cover (right and left)
• 3/4" x 5/16" x 9/16" (19mm x 8mm x 14mm)
servo mounting block (4)
• 2mm x 8mm sheet metal screw
Required Tools and Adhesives
• Phillips screwdriver
• Clamp
• Drill
• 6-minute epoxy
• Drill bit: 1/16" (1.5mm) • Felt-tipped pen
• String or unwaxed dental floss
• 12" (305mm) servo extension (2)
 Step 1
Step 2 Photo
  Step 3
Attach a 12" (305mm) servo extension to the aileron
servo. Use thread or unwaxed dental floss to secure
the extension to the servo lead so it will not become
disconnected inside the wing.
Determine which servo cover belongs to which wing
panel. The opening for the servo arm is offset to match the
opening in the wing.
  Step 4
Position the servo on the servo cover so the it is centered
on the cover. Also check that the servo arm is close to
centered in the arm opening and the arm will not interfere
with the cover when the servo is operating. Mark the
location of the servo using a felt-tipped pen.
  Step 2
Prepare the aileron servo by installing the hardware
supplied with the servo.
12
Section 2: Aileron Servo Installation
  Step 5
  Step 7
Mix up about a tablespoon of 6-minute epoxy to glue
the two 3/4" x 5/16" x 9/16" (19mm x 8mm x 14mm)
servo mounting blocks to the servo cover. Align the
blocks on the marks made in the previous step. A
clamp can be used to hold the blocks in position until
the epoxy fully cures.
Remove the servo and drill the locations marked in the
previous step using a 1/16" (1.5mm) drill bit.
  Step 8
  Step 6
Plug the aileron servo into the receiver. Use the transmitter
to check the operation of the aileron servo. Center the
aileron trim and attach a servo horn to the servo. The
servo arm that extends out beyond the servo cover should
measure 1/2" (13mm) from the center of the arm to the
outer hole. Trim the remaining arms from the servo arm so
they won't interfere with the operation of the servo.
Position the servo back onto the servo cover between
the blocks. With the servo slightly off the cover, mark the
location for the servo mounting screws using a felt-tipped
pen.
  Step 9
Attach the servo to the blocks using the hardware provided
with the servo.
Note: The servo is placed slightly off the servo
cover to help isolate it from vibration and to
let the servo grommets do the job they were
designed for.
13
Section 2: Aileron Servo Installation
  Step 10
Step 11 Photo
Tie a wheel collar onto a piece of string. Lower the string
into the opening for the aileron servo. Tip the wing so the
tip is facing up and lower the string through the wing.
Guide the string to exit the hole in the top of the wing near
the root.
  Step 12
Place the aileron servo into position on the wing. Use
four 2mm x 8mm sheet metal screws to attach the aileron
servo cover to the wing.
 Step 13
Repeat Steps 2 through 12 for the remaining aileron servo.
  Step 11
Tie the string to the aileron servo extension. Use the string
to pull the extension through the wing and out of the hole
at the wing root. Use tape to keep the extension from
falling back into the wing.
14
Section 3: Installing the Aileron Linkage
Required Items:
• Wing (right and left)
• Aileron linkage wire (right and left)
• Clevis w/retainer (2)
• Control horn w/backplate (2)
• 2mm x 11mm screw (2) • 2mm x 16mm screw (4)
Required Tools and Adhesives
• Phillips screwdriver
• Drill
• Drill bit: 5/64" (2mm)
• Felt-tipped pen
• T-pin
  Step 3
With the aileron servo plugged in and the radio system
on, make sure the aileron servo is centered and the trim
on the radio is centered. Slide a clevis retainer onto a
clevis. Thread the clevis onto the aileron linkage until
the pin in the clevis is 1/16" (1.5mm) behind the aileron
hinge line.
 Step 1
Locate the aileron linkages. There is a right and left
linkage as show below. (Right and left are as viewed when
sitting in the pilot's seat of the aircraft.)
  Step 4
  Step 2
Use a hobby knife to trim the control horn backplate from
the control horn.
Enlarge the outer hole of the servo arm using a 5/64"
(2mm) drill bit. Connect the appropriate aileron linkage
as shown.
Note: You may want to use painter's tape at
the wing tip to tape the aileron to the wing
tip so it will remain centered. This will make
installing the control horn much easier.
15
Section 3: Installing the Aileron Linkage
  Step 5
  Step 7
Attach the clevis to the outer hole on the control horn.
Place the horn flat on the aileron, aligning the linkage
parallel to the edge of the servo cover. Use a felt-tipped
pen to mark the location for the three control horn
mounting screws.
Use a T-pin to poke holes through the covering in the area
inside the triangle made by the three holes. Poke holes in
the covering on both the top and bottom of the aileron.
  Step 8
  Step 6
Use a 5/64" (2mm) drill bit to drill the locations for the
three screws. Use care to drill all three holes parallel to
each other.
16
Apply a small amount of thin CA in the area made by the
holes in the following step. A few drops of thin CA into
each hole is also required. This hardens the balsa, giving
the control horn a much more solid surface to mount to.
Do not use accelerator to allow the CA to penetrate into
the wood.
Section 3: Installing the Aileron Linkage
  Step 9
  Step 10
Attach the control horn to the wing using two 2mm x
16mm screws near the hinge line of the control horn and
one 2mm x 11mm screw at the trailing edge of the aileron
wing. The screws go into the control horn backplate which
is located on the top of the aileron.
Locate the flap control horn. Thread the horn onto the flap
linkage so the top of the horn is 7/8" (22mm) from the top
surface of the wing.
 Step 11
Repeat Steps 2 through 10 for the remaining
aileron linkage.
Note: If you have difficulty getting the screws
to line up with the backplate, just use your
drill bit to oval out the holes slightly. Just
remember to apply some thin CA to harden the
holes again.
17
Section 4: Assembling the Wing
Required Items:
• Left wing panel
• Right wing panel
• Aluminum wing tube
• Nylon strap
• #2 x 5/16" wood screw (2)
 Step 3
Slide the panels tightly together, guiding the servo wires
out of the way. Use a nylon strap and two #2 x 5/16" sheet
metal screws to secure the two wing panels together.
Required Tools and Adhesives
• Phillips screwdriver
• Sealing iron
 Step 1
Locate the aluminum wing tube. Slide the tube into one
of the wing panels. Do not force the tube, as it will slide
easily to its correct depth.
 Step 4
If you are not planning on taking your wing apart, a piece
of covering has been supplied to cover the center joint.
You will need to use a sealing iron to apply the covering
to the center joint.
 Step 2
Slide the remaining wing panel onto the aluminum
wing joiner tube. As the panels get close, make sure the
alignment pin goes into the hole.
Hint: You can use 30-minute epoxy to glue
the two wing halves together. Before sliding
the wing together, apply a thin coat of epoxy
to the exposed wood of both wing panels at
the center of the wing. Slide the wing together,
then use a paper towel and rubbing alcohol to
remove the excess epoxy from the wing.
18
Section 5: Installing the Landing Gear
Required Items:
• Assembled wing
• Landing gear strap (4)
1
• 3 /2" (76mm) wheel (2)
• Landing gear (left and right)
• #4 x 1/2" sheet metal screw (8)
• 3/16" wheel collar w/setscrew (4)
• Landing gear strap (4)
  Step 2
Slide a second wheel collar onto the landing gear
wire. Align the collar with the end of the landing gear
wire. Tighten the setscrew. Slide the wheel collar
installed in Step 1 against the wheel and tighten the
setscrew. Don't get the collar too tight which may
prevent the wheel from rolling.
Required Tools and Adhesives:
• Phillips screwdriver
• Ruler
• Drill bit: 3/32" (2.5mm) • Drill
• Felt-tipped pen
  Step 1
Locate a landing gear wire. Slide a 3/16" wheel collar
onto the landing gear wire, then slide the wheel with
the recessed side towards the outside onto the landing
gear wire.
Note: Use threadlock on the setscrews to
prevent them from vibrating loose in flight.
  Step 3
Snap the wheel cover onto the wheel.
19
Section 5: Installing the Landing Gear
  Step 4
  Step 6
Measure in 3/4" (19mm) from each end of the landing
gear slot. Position the landing gear strap so it straddles
the slot evenly. Mark the locations for the screw holes
using a felt-tipped pen.
Locate the left landing gear strut. Slide the strut into
position on the bottom of the wing. The wheel will be
towards the leading edge (front) of the wing when installed
correctly. Press the landing gear into the groove of the
landing gear mount.
  Step 7
Locate two landing gear straps and four #4 x 1/2" sheet
metal screws. Use a medium Phillips screwdriver to attach
the landing gear straps using the screws. Tighten the
landing gear straps until they pull the landing gear into
the groove, flush with the bottom of the wing.
  Step 5
Drill the four locations marked in the previous step using
a 3/32" (2.5mm) drill bit. Be careful not to accidentally run
the drill through the covering on top of the wing.
Note: Use care not to over-tighten the screws
and damage the landing gear mount.
 Step 8
Repeat Steps 1 through 7 to install the remaining landing
gear strut.
20
Section 6: Installing the Engine
Required Items
• Fuselage
• Engine mount
• Engine mount plate (2) • 8-32 x 3/4" bolt (4)
• 8-32 x 7/8" bolt (4)
• 8-32 lock nut (4)
5
• 15 /8" (397mm) throttle pushrod wire
• Clevis w/retainer
Required Tools and Adhesives
• Phillips screwdriver
• Ruler
• Threadlock (included in kit)
 Step 2
Locate the engine mount plates, two 8-32 locknuts and
two 8-32 x 7/8" bolts. Slide the bolt through the smooth
side of the engine mount plate. Then slide the bolt through
the holes in the rear of the engine mount, with the curved
side of the plate towards the center of the mount. Start an
8-32 locknut onto the bolts, but do not tighten the bolt.
 Step 1
Use four 8-32 x 3/4" bolts to attach the engine mount to
the firewall. Pay close attention to the orientation of the
mount, as the head of the engine will face up and to the
right in relationship to the pilot.
21
Section 6: Installing the Engine
 Step 3
 Step 5
Position the engine onto the mount, sliding it between the
mount and the mounting plates. Slide the two remaining
8-32 x 7/8" bolts through the front holes in the mount.
Thread the two remaining 8-32 locknuts onto the screws.
Locate the 15 5/8" (397mm) throttle pushrod wire. Slide a
clevis retainer onto the clevis. Thread the clevis onto the
pushrod wire until the wire can barely be seen coming
through between the forks of the clevis.
 Step 4
 Step 6
Start by tightening the bolts at the rear of the engine. Once
they are snug, slide the engine so the distance from the
firewall to the front of the propeller drive washer is
4 7/16" (113mm). You want to have tightened the front and
rear bolts equally as the plates act as a clamp to hold the
engine in position.
Slide the pushrod wire through the tube pre-installed in
the fuselage. Attach the clevis to the throttle arm, then
slide the retainer over the forks of the clevis. This will
prevent the clevis from opening during flight.
22
Section 7: Cowling and Fuel Tank Installation
Required Items
• Fuselage
• Cowling
• Spinner backplate
• Fuel tank
• 2mm x 10mm sheet metal screw (4)
Required Tools and Adhesives
• Phillips screwdriver
• Card stock
• Ruler
• Hobby scissors
• Drill bit: 1/16" (1.5mm), 1/8" (3mm)
• Drill
• Masking tape
• Felt-tipped pen
• Rotary tool w/sanding drum
 Step 1
Cut pieces of card stock to indicate the location of
engine items such as the needle valve, carburetor and
throttle arm of the engine. Tape the card stock to the
fuselage as shown.
 Step 2
Slide the cowling onto the fuselage so the front of the
cowling is roughly 4 5/16" (110mm) from the firewall. Use
a felt-tipped pen to transfer the locations from the card
stock onto the cowling.
Step 2 Photo
 Step 3
Place the engine back onto the fuselage. Remove a small
portion of the areas transferred onto the cowl from the
previous step. Slowly test fit the cowl onto the fuselage
and remove material as necessary to get the cowling to fit
over the engine.
Note: If your cuts are a little jagged, use a
rotary tool with a sanding drum to smooth up
your cuts and give the cowling a nice finished
look.
Note: It will be necessary to remove the
engine from the fuselage for this step.
23
Section 7: Cowling and Fuel Tank Installation
 Step 4
 Step 7
Tape pieces of card stock to the fuselage to indicate the
location of the firewall.
Slide the cowling back onto the fuselage. Use tape to hold
it in position as described in Step 5. Use a 1/16" (1.5mm)
drill bit to drill into the fuselage in the locations for the
cowling screws.
 Step 5
Slide the cowling onto the fuselage. Install the propeller
drive washer and the spinner backplate. Use the nut and
washer from the engine to hold the backplate in position.
Position the cowl so there is about 1/8" (3mm) gap
between the spinner backplate and cowling. Use a felttipped pen to mark the locations for the cowling screws.
 Step 6
Remove the cowling and drill the locations marked in the
last step using a 1/8" (3mm) drill bit.
24
 Step 8
Run the 2mm x 10mm sheet metal screws into the
holes then remove them. Apply a few drops of thin CA
into the holes to harden the underlying wood. Once the
CA has fully cured, secure the screws using the four
2mm x 10mm sheet metal screws.
Section 7: Cowling and Fuel Tank Installation
 Step 9
 Step 12
Attach the muffler to your engine using the hardware
provided with the engine. Make sure to trim the cowling
as necessary to provide at least a 1/8" (3mm) gap between
the muffler and engine.
Connect the fuel lines to the engine. The vent line
connects to the muffler. The remaining line goes to the
clunk, which connects to the carburetor.
 Step 10
Hold the fuel tank up to a strong light to determine which
line is the vent line. The vent will be bent upwards towards
the top of the fuel tank.
 Step 13
Attach the exhaust stacks to the fuselage using the four
#2 x 5/16" sheet metal screws.
 Step 11
Slide the fuel tank into position inside the fuselage. The
vent must be facing towards the top of the fuselage.
Note: The exhaust stack for the right side of
the model may need to be cut down in length.
This is necessary to clear the muffler.
25
Section 8: Installing the Propeller
Required Items
• Fuselage
• Propeller
• Spinner
• #4 x 5/8" sheet metal socket head screw (3)
• Exhaust stack, right and left
• #2 x 5/16" wood screw (4)
 Step 3
Slide the washer and thread the nut onto the engine shaft.
Rotate the propeller clockwise so it is resting against the
lugs of the spinner backplate. Use an adjustable wrench to
tighten the propeller nut. Do not use pliers, as the nut will
not be tight enough, and could come loose.
Required Tools and Adhesives
• Adjustable wrench
 Step 1
Make sure the propeller nut and washer have been
removed from the engine.
Note: It is suggested to read the engine
instructions included with your P-51 Mustang
ARF at this time to learn more on the care and
operation of your Evolution® engine.
 Step 4
 Step 2
Slide the spinner backplate onto the engine shaft, and then
slide the propeller into position.
26
Locate the three #4 x 5/8" sheet metal socket head screws.
Position the spinner cone onto the spinner backplate,
making sure it keys into the backplate. Use the screws and
a 2.5mm or 3/32" hex wrench to secure the spinner cone
to the backplate.
Section 9: Installing the Flap Linkage
Required Items
• Wing
• Clevis w/retainer (2)
 Step 3
• Flap linkage
Required Tools and Adhesives
• Adjustable wrench
Once the flaps have been centered, disconnect the
clevis from the linkage stay and flap control horns and
move the linkage to the rear position.
 Step 1
Prepare the flap linkage by sliding a clevis retainer onto a
clevis. Prepare two clevises and then thread them onto the
flap linkage.
 Step 4
 Step 2
Reconnect the clevis to the flap actuator. Slide the clevis
retainers onto the clevises to prevent them from opening
accidentally. The flaps will now be in the down, or
Training Mode.
Attach the flap linkage to the forward hole in the linkage
stay. With the linkage in the forward (up) position, thread
the clevis until the flap is even with the wing trailing edge.
27
Section 10: Radio and Linkage Installation
Required Items:
• Fuselage
• Radio plate
• Radio foam (flat) (2)
• Radio foam (precut)
• #4 washer
• Clevis w/retainer (2)
• Nylon pushrod keeper (2)
• Brass wire connector w/backplate and setscrew
• 4-40 x 1/2" socket head screw
• 23 3/8" (594mm) elevator pushrod
• 26" (660mm) rudder pushrod
 Step 2
Install the servos into the fuselage using the screws
provided with the servos.
Required Tools and Adhesives:
• Servo w/hardware (3)
• Switch harness
• Receiver
• Receiver battery (flat)
• Hex wrench: 3/32"
• Drill
• Drill bit: 5/64" (2mm)
 Step 1
Prepare three servos by installing the grommets and
brass eyelets following the instructions provided with
the servos.
Note: Even though the holes for the servo
screws are pre-drilled, it is a good idea to start
the screws and remove each one. Apply a few
drops of thin CA to harden the plywood, and
then install the servos.
 Step 3
Place a flat piece of foam down into the fuselage between
the fuel tank and the radio tray. Position the notch in the
foam towards the fuel tank.
28
Section 10: Radio and Linkage Installation
 Step 4
 Step 6
Plug the servos, switch harness and aileron
Y-harness into the receiver. Plug the receiver battery
into the switch harness.
Install the switch harness into the side of the fuselage
using the hardware provided with the switch harness. The
switch is placed on the side of the fuselage opposite the
engine exhaust.
 Step 5
Route the antenna wire through the pre-installed tube
inside the fuselage to the rear of the fuselage. The tube is
located on the pilot's left side in front of the radio tray.
 Step 7
Place the pre-cut radio foam into the fuselage. The
notch faces towards the fuel tank, same as the flat foam.
Place the receiver battery in the opening towards the
fuel tank, and the receiver in the opening near the radio
tray. Tuck the servo and battery leads neatly between the
layers of foam.
29
Section 10: Radio and Linkage Installation
 Step 8
 Step 10
Place the remaining piece of flat foam over the receiver
and receiver battery. Slide the radio tray into the notches
on the sides of the fuel tank. Secure the radio tray using
the 4-40 x 1/2" socket head screw and #4 washer.
Enlarge the outer hole in the rudder and elevator servo
arms using a 5/64" (2mm) drill bit.
Hint: The radio tray will only fit if the fuel tank
is seated with the stopper in the opening in the
firewall. You may have to wiggle the tank to get
it to seat properly.
Note: Make sure to leave the aileron extension
and the charge lead from the switch harness
where they can be accessed later.
 Step 9
Slide the pushrods into the tube pre-installed in the
fuselage. The pushrod for the elevator is 23 3/8" (594mm)
in length, while the pushrod for the rudder is 26"
(660mm) in length.
30
 Step 11
Remove the excess arms from the servo horn. Slide the
pushrod wire into the hole drilled in the previous step.
Slide a nylon pushrod keeper onto the wire from the
opposite side of the servo arm. The keeper then "swings"
over and snaps onto the pushrod wire to keep the wire
from coming out of the servo arm.
Section 10: Radio and Linkage Installation
 Step 12
 Step 14
Remove the servo horn from the throttle servo. Drill the
outer hole on one of the longer arms using a 5/64" (2mm)
drill bit. Slide the brass connector into the hole from the
top of the servo horn. Secure the brass connector by
sliding the connector backplate onto the connector from
the bottom of the servo horn.
Place a clevis retainer onto a clevis. Thread the clevis onto
the elevator pushrod wire a few turns so it won't fall off.
Repeat this for the rudder pushrod as well.
 Step 13
With the radio system on, center the throttle stick and
throttle trim. Slide the throttle pushrod wire through the
connector then install the servo horn as shown. This will
provide equal travel for both high and low throttle, making
setting up the linkage much easier. Temporarily install the
setscrew into the brass connector.
31
Section 11: Preparing the Rudder Assembly
Required Items:
• Rudder
• Fin
• CA hinge (3)
• Tail wheel assembly
• Control horn w/backplate • 2mm x 12mm screw (3)
• 1" (25mm) tail wheel
• 1/16" wheel collar w/setscrew
Required Tools and Adhesives:
• Hex wrench (included with kit)
• Thin CA
• 6-minute epoxy
• Petroleum jelly
• Mixing stick
• T-pins
• Drill
• Drill bit: 1/16" (1.5mm) • Paper towel
• Rubbing alcohol
• Sandpaper
• Felt-tipped pen
 Step 2
Test fit the tail gear assembly into the slot at the
bottom of the fin. Trim the fin if necessary. Mix up
about a tablespoon of 6-minute epoxy and apply it to
both the nylon bushing where it fits into the fin and the
slot in the fin. Reposition the assembly back into the fin
and use a paper towel with rubbing alcohol to clean up
any excess epoxy.
 Step 1
Apply a thin coat of petroleum jelly to the tail gear as
shown. This will help in preventing epoxy from securing
the wire to the bushing.
 Step 3
Place a T-pin in the center of the three CA hinges.
32
Section 11: Preparing the Rudder Assembly
 Step 4
 Step 6
Drill a 1/16" (1.5mm) hole n the center of each hinge slot
for both the rudder and fin.
Test fit the rudder and fin together. The wire from the tail
gear assembly fits into a hole that has been pre-drilled
into the rudder. The rudder and fin should fit tightly
together. If not, determine what is preventing them from
sliding together and make the necessary adjustments so
the hinge gap tight.
 Step 5
Slide the three hinges into the rudder until the T-pin is
resting against the hinge line of the rudder.
 Step 7
Separate the rudder and fin. Lightly sand the part of the
tail gear wire that fits into the rudder. Clean the wire with
rubbing alcohol and a paper towel to remove any dirt from
the wire.
33
Section 11: Preparing the Rudder Assembly
 Step 8
 Step 10
Mix up about a tablespoon of 6-minute epoxy. Apply
the epoxy to the tail gear wire and the hole in the rudder.
Do not apply epoxy to the slot in the rudder as this will
glue the rudder to the nylon bearing, preventing the
rudder from moving. Slide the rudder and fin together.
Once the CA and epoxy fully cure, test the hinges by
pulling on the fin and rudder. Flex the rudder a number of
times in both directions to break in the hinges.
 Step 11
Remove the backplate from a control horn. Position the
horn 1/2" (13mm) up from the bottom of the rudder. Align
the holes with the hinge line of the rudder and fin. Mark
the location for the three control horn mounting screws
using a felt-tipped pen.
Hint: you can combine Steps 8 and 9 while
the epoxy is curing.
 Step 9
Remove the T-pins from the hinges. Apply thin CA to both
sides of each hinge, making sure they are saturated with
the CA.
34
 Step 12
Use a 5/64" (2mm) drill bit to drill the locations for
the screws.
Section 11: Preparing the Rudder Assembly
 Step 13
 Step 14
Use a T-pin to poke holes through the covering in the area
inside the triangle made by the three holes. Poke holes in
the covering on both sides of the rudder. Apply a small
amount of thin CA in the area made by the holes in the
following step. A few drops of thin CA into each hole is
also required. This hardens the balsa, giving the control
horn a much more solid surface to mount to. Do not use
accelerator to allow the CA to penetrate into the wood.
Attach the control horn to the rudder using three 2mm x
12mm screws and the control horn backplate.
Note: Make sure to attach the control horn to
the right side of the rudder as viewed from the
pilots perspective.
 Step 15
Slide the 1" (25mm) tail wheel onto the tail gear wire.
Secure the tail wheel using a 1/16" wheel collar and
setscrew. Use threadlock on the setscrew to prevent if
from coming loose in flight.
35
Section 12: Preparing the Stabilizer Assembly
Required Items:
• Stabilizer
• Elevator (2)
• CA hinge (6)
• Elevator joiner wire
• Control horn w/backplate
• 2mm x 12mm screw (3)
Required Tools and Adhesives:
• Thin CA
• 6-minute epoxy
• Mixing stick
• T-pins
• Drill
• Drill bit: 1/16" (1.5mm) • Paper towel
• Rubbing alcohol
• Sandpaper
• Felt-tipped pen
 Step 3
Mix up a small amount of 6-minute epoxy. Apply the
epoxy to the slot and hole in the elevator, and to the
joiner wire where it contacts the elevator. Slide the wire
into position and use tape to hole the wire in position
until the epoxy cures.
 Step 1
Locate the elevator joiner wire. Use sandpaper to roughen
the wire. Clean the joiner wire using rubbing alcohol and
a paper towel.
 Step 4
Test fit the remaining elevator to the joiner wire. Make
sure both elevators are parallel by resting them on a flat
surface. Either bend the wire or enlarge the hole in the
remaining elevator if necessary so both elevators are
parallel.
 Step 2
Test fit the joiner wire into one of the elevators. It will slide
in the elevator so the wire does not protrude beyond the
hinge line of the elevator.
36
Section 12: Preparing the Stabilizer Assembly
 Step 5
 Step 8
Use a straight edge along the hinge line to make sure the
hinge line between the two elevators are aligned. Bend
the wire or enlarge the hole in the elevator to achieve
alignment.
Drill a 1/16" (1.5mm) hole in the center of each hinge slot
for the elevators and stabilizer.
 Step 6
Slide the final elevator from the joiner wire once it has
been aligned. Mix up some 6-minute epoxy and apply it
to the joiner wire and hole in the elevator. Slide the two
together. Rest the elevator assembly on a flat surface.
Check the alignment as described in Steps 4 and 5 while
the epoxy cures.
 Step 9
Install the hinges into the elevators. Slide the elevators
and stabilizer together. Use thin CA to glue each of the six
hinges, both top and bottom.
Hint: Use weights on the elevators to keep
them flat on your work surface while the
epoxy cures.
 Step 7
Prepare six CA hinges by placing a T-pin in the center of
each hinge.
 Step 10
Test how well the hinges are glued in by pulling on the
elevator and stabilizer. Flex the elevators a few times to
break in the hinges.
37
Section 12: Preparing the Stabilizer Assembly
 Step 11
 Step 13
Remove the backplate from a control horn. Position the
horn 1/2" (13mm) from the inside edge of the elevator.
Align the holes with the hinge line of the stabilizer and
elevator. Mark the location for the three control horn
mounting screws using a felt-tipped pen.
Use a T-pin to poke holes through the covering in the area
inside the triangle made by the three holes. Poke holes in
the covering on both sides of the rudder. Apply a small
amount of thin CA in the area made by the holes in the
following step. A few drops of thin CA into each hole is
also required. This hardens the balsa, giving the control
horn a much more solid surface to mount to. Do not use
accelerator to allow the CA to penetrate into the wood.
Note: The elevator control horn is located
on the pilot's left side. It will be located
underneath the stabilizer/elevator when the
assembly is installed on the aircraft.
 Step 12
Use a 5/64" (2mm) drill bit to drill the locations for
the screws.
38
 Step 14
Attach the control horn to the rudder using three 2mm x
12mm screws and the control horn backplate.
Section 12: Installing the Tail Surfaces
Required Items:
• Fuselage
• Rudder/Fin
 Step 2
• Stabilizer/elevator
Required Tools and Adhesives:
• Pliers or adjustable wrench
Thread the nuts onto the rod, tightening them snugly
against the bottom of the fuselage using pliers or an
adjustable wrench. Do not over-tighten the nuts.
 Step 1
Locate the stabilizer/elevator assembly. Locate the
fin/rudder assembly and remove the nuts and washers
from the threaded rods on the fin. Position the stabilizer/
elevator assembly so the control horn will face down,
away from the fin. The threaded rods from the rudder/fin
assembly will slide into the two holes in the stabilizer. The
fuselage fairing has been slid into position on the fin in
the photograph.
39
Section 13: Attaching the Wing
Required Items:
• Fuselage assembly
• Wing assembly
• Radiator scoop
• 1/4-20 x 2" nylon bolt (2)
Required Tools and Adhesives:
• Flat blade screwdriver
 Step
Note: Check to make sure the servo leads are
inside the fuselage and not caught between the
wing and fuselage.
 Step
Locate the two 1/4-20 x 2" nylon wing bolts. Slide the
bolts into the holes in the radiator scoop so the threads
are exposed.
Locate the servo leads from the wing and plug them into
the leads for the ailerons located in the fuselage. These
leads are identical, so you can plug either of the aileron
servo leads into either of the extensions.
 Step
 Step
Guide the wing dowels at the front of the wing into the
holes located in the fuselage. Allow the wing to drop down
and rest in the wing saddle of the fuselage.
40
Place the radiator scoop onto the wing, guiding the bolts
into the bolt holes in the wing. Use a flat blade screwdriver
to tighten bolts, securing the wing to the fuselage. It is
helpful to pull the back of the wing away from the fuselage
so you can guide the bolts into the holes in the fuselage
to start them threading into the holes.
Section 14: Final Assembly
Required Items:
• Fuselage
• Wing
• Exhaust stack (right and left)
• Decal set
• Canopy
• #2 x 5/16" sheet metal screws (4)
Required Tools and Adhesives:
• Phillips screwdriver
• Felt-tipped pen
• Sandpaper
• Masking tape
• Rubbing alcohol
• Paper towel
• Canopy glue
 Step 3
Use sandpaper to lightly sand inside the line drawn
on the fuselage. Also sand the inside of the canopy
where it will contact the fuselage. Use rubbing alcohol
and a paper towel to remove any dirt from both the canopy
and fuselage.
 Step 1
Cut the decals from the decal sheet. Use the box to aid in
the location of the decals on the fuselage and wing.
 Step 2
Position the canopy on top of the fuselage. Use a felttipped pen to trace the outline of the canopy onto the
fuselage
 Step 4
Apply a thin bead of canopy glue to the inside edge of the
canopy. Position the canopy onto the fuselage and use
masking tape to hold the canopy to the fuselage until the
canopy glue has had time to fully cure.
41
Section 15: Centering the Control Surfaces
Ailerons
Check to make sure the clevis is located in the outer hole
of the control horn. If not, slide the clevis retainer forward,
disconnect the clevis, connect it in the correct location,
and slide the clevis retainer back into position.
Connect the aileron servo leads as described in
the previous section. Center the aileron trim on
the transmitter.
Turn on the transmitter, then the receiver. Thread the clevis
as necessary until the aileron is even with the wing tip.
42
Elevator
Connect the elevator clevis to the center hole on the
elevator control horn.
Center the trim lever for the elevator on the transmitter.
With the radio system on, thread the clevis until the
elevator is aligned with the stabilizer. Slide the clevis
retainer onto the clevis to secure its location.
Section 15: Centering the Control Surfaces
Rudder
Connect the rudder clevis to the center hole on the rudder
control horn.
With the radio system on, thread the clevis until the
rudder is aligned with the fin. Slide the clevis retainer onto
the clevis to secure its location.
Center the trim lever for the rudder on the transmitter.
Section 16: Checking the Control Surface Directions
Ailerons
Turn on the transmitter, then the receiver. Move the aileron
stick to the right, which is the input for a right turn. The
right aileron will move up, and the left aileron will move
down. If not, check the radio instructions on how to
reverse the direction electronically at the transmitter.
43
Section 16: Checking the Control Surface Directions
Elevator
With the radio system still on, pull back on the elevator
control stick to give an up elevator input. The elevator
should move up from center. If not, check the radio
instructions on how to reverse the direction electronically
at the transmitter.
Rudder
The final control surface direction to check is the rudder.
With the radio system on, move the rudder stick to the
right, this will make the plane turn right. The rudder
should deflect to the right as well. If not, check the radio
instructions on how to reverse the direction electronically
at the transmitter.
Note: Operating the functions at the
transmitter opposite as described will result in
the control surfaces moving opposite as well.
44
Section 17: Checking the Control Throw Amounts
The following section covers checking the amount of
throw each control surface has and how to increase or
decrease the amount of throw to match the throws listed
in the manual. In addition, you will check to make sure
each control surface is moving the correct direction when
operated from the transmitter.
After checking that the controls are moving in the correct
directions, the amount of the control movement must be
checked. By moving the control stick of each surface to its
full deflection, you will measure the amount the surface
has moved. By holding a ruler next to the surface and
establishing a reference, use the radio to make the surface
move and compare the measurements to those shown.
Hint: Place your ruler on a solid surface,
rather than hold it in the air, to take
measurements. This will guarantee your ruler
is not moving. If the ruler is moving you will
get inaccurate readings.
Note: If you have a fellow modeler with a
throw gauge that measures in degrees you can
borrow, the amounts are 12-degrees instead
of 1/2" for the elevator, 15-degrees instead of
7/8" for the rudder, and 10-degrees instead of
5/16" and 12-degrees instead of 3/8" for the
ailerons.
If the throws of the control surfaces are not moving the
amounts as described, you may need to change the Travel
Adjustment setting in the radio. To do so, read the section
in the radio manual on programming the radio.
45
Section 18: Adjusting the Throttle
With the radio system on, move the trim lever and throttle
lever towards the bottom of the transmitter. Look into the
carburetor to check that the barrel is closed.
Move the trim lever up towards the top of the transmitter.
The barrel in the carburetor should have an opening of
around 1/16".
Move the throttle stick towards the top of the transmitter.
The carburetor will now be in the fully open position.
46
If the throttle is not operating as described, you may
need to change the Travel Adjustment setting in the
radio. To do so, read the section in the radio manual on
programming the radio.
Note: Once all the radio adjustments are
complete, remember to turn off both the
receiver and the transmitter.
Section 19: Balancing Your P-51 ARF
In order for your P-51 Mustang ARF to fly correctly, you
will need to check the balance of the plane. This is done
by supporting the aircraft either using your fingers, or by
using a balancing stand. Not checking the balance can
result in an aircraft that is difficult to fly, which can lead to
the possibility of crashing your model.
Marking the Balance Point
The first step in balancing your P-51 Mustang ARF is to
mark the location for the balance point. Measure back
4 1/2" against the fuselage to the very front edge of the
wing, which is where the wing plugs into the fuselage.
Mark the location on both sides of the fuselage using a
felt-tipped pen to mark the balance location.
Balanced Correctly
Nose Heavy – Add Weight to Tail
Lifting the Model and Observations
The P-51 Mustang ARF is balanced using either your
fingers or a balancing stand. The stand in the photo was
made from a dowel rod and a flat piece of wood. The
dowel was cut down and holes drilled in the wood, then
the dowel plugged into the wood. Use pencil erasers to
prevent the ends of the dowel from damaging your wing.
Place or lift the airplane so it is supported at the marks
made in the previous step. The plane will rest level when
balanced correctly. If not, weights must be added to
correct any balancing problems.
Tail Heavy – Add Weight to Nose
47
Section 19: Balancing Your P-51 ARF
Adding Weights to Correct the Balance
Due to manufacturing differences, it is possible that the
P-51 Mustang ARF may not be balanced properly.
Weights can be added to either the tail or the nose of
your P-51 Mustang ARF if it does not balance properly.
Stick-on weights are the easiest to use, and come in sizes
that are easily placed on your plane. Add just enough
weight as necessary to balance your plane. Once the
weight has been added, make sure it is secure and will
not fall off in flight.
Note: The balance point of your P-51 Mustang
ARF can vary 1/4” forward or rearward
without causing any problems. If your plane
is only slightly out of balance, try placing the
balancing stand towards the nose or tail by
this 1/4” and recheck the balance. If it looks
good and sits level, then you’re good to go!
Section 20: Flight Preparations
Flight preparations are the items you must check each
time you travel to the flying field. Because the P-51
Mustang ARF will encounter a variety of situations, it is
best to keep an eye on the various components of your
model to keep it in the best flying condition.
Checking the Frequency
When at the field, check to see if there is some form of
frequency control in use. Usually there are clips each pilot
will use signifying the channel their plane is on. This will
prevent other pilots from turning on their radio systems
if more than one pilot is using the same frequency.
Operating two aircraft at the same time on a single
frequency will lead to the demise of one or both aircraft.
Checking the Controls
Before starting your engine, check to make sure the
controls are operating in the correct directions and the
linkages and surfaces are not binding anywhere. Also look
at the clevises and clevis retainers to make sure they are
secure and will not come loose or fail in flight.
48
Range Check the Radio
A range check should be part of the preflight process as
well. The instructions provided with your radio system
will detail the correct procedure for checking the range
of your particular radio system. This procedure is best
done with a partner to hold your aircraft and check for
any abnormalities.
Fueling the P-51 Mustang ARF
Fill the fuel tank with the proper fuel. Fill the tank by
connecting the fuel pump to the line going to the needle
valve. Disconnect the fuel line attached to the pressure
fitting of the muffler; your tank is full when fuel begins to
run out of the pressure line. Reconnect the fuel lines to the
needle valve assembly and muffler.
Note: It is very important to reconnect
the lines to the correct place. If they are
reconnected incorrectly, the engine will not run
properly.
Section 21: Maintaining Your P-51 Mustang ARF
The following is a check list that you should follow every
time you have completed a flying session with your
P-51 Mustang. Doing so will keep your aircraft in the
best flying condition.
Clean Up
After a long flying session with your P-51 Mustang ARF,
you will want to clean it up before loading it into your
vehicle to head home. Use a cleaner such as Windex or
409 and a paper towel to wipe down the exterior of your
plane, removing the fuel residue. Remember a clean plane
will last longer since the fuel won’t be allowed to soak into
any exposed wood.
Checking the Propeller
Check to make sure the propeller is tightly secured to
the engine. If not, remove the spinner and use a crescent
wrench to tighten it back down. If you have had any
not-so-great landings, you will want to inspect the
propeller for any damage. Small nicks and scratches
can quickly become fractures, causing the propeller to
be unsafe for flight. Always carry a few spare propellers
so a damaged propeller can be replaced at the field,
increasing your flying time per trip to the field.
Checking the Clevises
Inspect the aileron, elevator and rudder clevises to make
sure they are connected and in good working order. If
you find a clevis that is showing signs of wear or is
broken, replace it with a new clevis. Also check the nylon
connectors at the servo for any wear or damage. If they
look worn or in bad shape, replace them as well.
Checking the Control Horns
Inspect the control horns to make sure they have not
crushed the wood of the control surface. If so, remove the
control horn screws to remove the control horn. Place 2–3
drops of thin CA into each of the screw holes. In addition,
use a T-pin to poke small holes in the covering in the area
where the control horn mounts, then saturate the area with
thin CA. This will harden the wood and give the control
horns a solid surface to be mounted to.
Checking the Wheel Collars
Check the setscrews on the main and tail wheel collars to
make sure they are not loose. Use a 1.5mm
hex wrench to tighten the setscrews. It is suggested if
they loosen frequently to remove them, apply threadlock
to the setscrews, then secure the wheel collars back
into position.
Check the Muffler Bolts
Use a 2.5mm hex wrench to make sure the bolts holding
the muffler onto the engine are tight and have not vibrated
loose during flight.
Check the Engine Mount Bolts
Remove the spinner and propeller from the engine.
Remove the exhaust stacks from the fuselage, and then
remove the cowling from the fuselage. Remove the muffler
from the engine, and then use a Phillips screwdriver to
make sure the four bolts securing the engine to the mount
are tight.
49
Section 22: Progressing With Your Flying Skills
The P-51 Mustang ARF is a special trainer plane in that it
will allow you to go from learning the basics of flight all
the way up to performing aerobatics without upgrading or
purchasing a new plane. As you learn to fly and become
ready for a little more challenge, the P-51 Mustang ARF
will grow with you.
The following items can be installed depending on your
particular skill level. The wing droops, flap setting and
speed brakes are all items you can add to your P-51 ARF
to make it more suitable for your particlar skill level.
Graduate
If you may be a bit apprehensive about the flying
characteristics of your P-51 Mustang ARF install the clear
anti-spin NACA droops. This is done by simply using
clear tape on the top and bottom to hold them in place on
the wing. Without the droops, your P-51 Mustang ARF
will be an all-out aerobatic warbird. In the air, you can
do a variety of aerobatics such as rolls, loops, spins and
snap rolls.
 Step 1
The droops are held on with clear tape. Simply using clear
tape will allow you to install the droops. When you are
done using the wing droops, set them aside for training a
budding young pilot in the future.
After you have graduated from the Progressing Training
System and are enjoying your P-51 Mustang ARF in its
aerobatic mode, you can take it even a step further and
add functional flaps. To do this, you’ll need to purchase
an additional servo from your local hobby store such as
the JR 537 servo. Then, simply remove the covering over
the flap servo slot in the center of the wing and install
the servo. Hook up the linkage to the servo following the
directions and you have a scale P-51 Mustang complete
with functioning landing flaps.
Advanced
If you feel that you want a little slower flight speed for
your P-51 Mustang ARF, it is suggested to move the flaps
to the lower position. This is done after you have installed
the wing droops.
 Step 1
Disconnect the flap linkage from the flap control horns.
Remove the linkage from the linkage stay.
50
Section 22: Progressing With Your Flying Skills
 Step 2
Move the linkage to the rear hole in the flap
linkage stay.
Intermediate
To complete the conversion of your P-51 Mustang to
a docile trainer, all you need to do is install the speed
brakes. With the speed brakes installed, the flaps in the
down position and the NACA wing droops all installed,
you have a plane that can be used, with a trained flight
instructor, for basic training.
 Step 1
Position the speed brakes as shown on the landing
gear wires. Use three tie wraps to secure the speed
brakes to the landing gear. The brakes will rest against
the landing gear strap, which will prevent them from
rotating during flight.
 Step 3
Reconnect the clevises and check that the flaps are in the
down position. Check both the right and left flaps to make
sure they are deflected equal amounts from the wing.
51
Section 23: Adding a Flap Servo
Required Tools and Adhesives:
• Plier (2)
• Drill bit: 1/16" (1.5mm)
 Step 1
Remove the flap linkage from the aircraft.
 Step 2
 Step 5
Place the servo (not included) into the opening. Use a
1/16" (1.5mm) drill bit to drill holes in the underlying
wood for the servo mounting screws. Once the holes are
drilled, use the four screws that were provided with the
servo to secure it into position.
Remove the flap linkage stay from the wing. Be careful
when removing the stay as not to damage the wing.
 Step 3
The “Z” bend in the linkage will need to be rotated
90-degrees to connect to the servo. Use two pairs of
pliers, one to hold the linkage, and the other to twist
the “Z” bend.
 Step 4
Remove the covering from the wing for the flap servo. This
area is in the left wing panel right next to where the flap
linkage stay was located.
Note: Make sure to read the instructions
included with the servo for installing the
grommets and brass eyelets.
 Step 6
Plug the servo into the 5th channel of the receiver.
52
Section 23: Adding a Flap Servo
 Step 7
 Step 8
Turn on your radio system. Move the control on the
transmitter to the up position. Attach the servo arm and
secure it with the screw provided with the servo. The
servo arm should be offset towards the leading edge of
the wing as shown in the photo. Attach the flap linkage
to the flap servo arm.
Check the operation of the flaps from the radio system.
The flaps will now move from up to a lowered position
using the radio system.
53
2006 Official AMA
National Model Aircraft Safety Code
GENERAL
1) I will not fly my model aircraft in sanctioned
events, air shows or model flying demonstrations until
it has been proven to be airworthy by having been
previously, successfully flight tested.
2) I will not fly my model higher than approximately
400 feet within 3 miles of an airport without notifying
the airport operator. I will give right-of-way and avoid
flying in the proximity of full-scale aircraft. Where
necessary, an observer shall be utilized to supervise
flying to avoid having models fly in the proximity of
full-scale aircraft.
3) Where established, I will abide by the safety rules
for the flying site I use, and I will not willfully and
deliberately fly my models in a careless, reckless and/
or dangerous manner.
4) The maximum takeoff weight of a model is 55
pounds, except models flown under Experimental
Aircraft rules.
5) I will not fly my model unless it is identified with
my name and address or AMA number, on or in the
model. (This does not apply to models while being
flown indoors.)
6) I will not operate models with metal-bladed
propellers or with gaseous boosts, in which gases
other than air enter their internal combustion
engine(s); nor will I operate models with extremely
hazardous fuels such as those containing
tetranitromethane or hydrazine.
54
7) I will not operate models with pyrotechnics (any
device that explodes, burns, or propels a projectile
of any kind) including, but not limited to, rockets,
explosive bombs dropped from models, smoke
bombs, all explosive gases (such as hydrogen-filled
balloons), or ground mounted devices launching a
projectile. The only exceptions permitted are rockets
flown in accordance with the National Model Rocketry
Safety Code or those permanently attached (as per
JATO use); also those items authorized for Air Show
Team use as defined by AST Advisory Committee
(document available from AMA HQ). In any case,
models using rocket motors as a primary means of
propulsion are limited to a maximum weight of 3.3
pounds and a G series motor. (A model aircraft is
defined as an aircraft with or without engine, not able
to carry a human being.)
8) I will not consume alcoholic beverages prior to,
nor during, participation in any model operations.
9) Children under 6 years old are only allowed
on the flight line as a pilot or while receiving
flight instruction.
RADIO CONTROL
1) I will have completed a successful radio equipment
ground range check before the first flight of a new or
repaired model.
2) I will not fly my model aircraft in the presence
of spectators until I become a qualified flier, unless
assisted by an experienced helper.
3) At all flying sites a straight or curved line(s) must
be established in front of which all flying takes place
with the other side for spectators. Only personnel
involved with flying the aircraft are allowed at or in
the front of the flight line. Intentional flying behind the
flight line is prohibited.
4) I will operate my model using only radio control
frequencies currently allowed by the Federal
Communications Commission. (Only properly
licensed Amateurs are authorized to operate
equipment on Amateur Band frequencies.)
2006 Official AMA
National Model Aircraft Safety Code
5) Flying sites separated by three miles or more
are considered safe from site-to site interference,
even when both sites use the same frequencies. Any
circumstances under three miles separation require
a frequency management arrangement, which may
be either an allocation of specific frequencies for
each site or testing to determine that freedom from
interference exists. Allocation plans or interference
test reports shall be signed by the parties involved
and provided to AMA Headquarters. Documents of
agreement and reports may exist between (1) two
or more AMA Chartered Clubs, (2) AMA clubs and
individual AMA members not associated with AMA
Clubs, or (3) two or more individual AMA members.
6) For Combat, distance between combat engagement
line and spectator line will be 500 feet per cubic
inch of engine displacement. (Example: .40 engine
= 200 feet.); electric motors will be based on
equivalent combustion engine size. Additional safety
requirements will be per the RC Combat section of the
current Competition Regulations.
7) At air shows or model flying demonstrations, a
single straight line must be established, one side of
which is for flying, with the other side for spectators.
8) With the exception of events flown under AMA
Competition rules, after launch, except for pilots or
helpers being used, no powered model may be flown
closer than 25 feet to any person.
9) Under no circumstances may a pilot or other
person touch a powered model in flight.
Organized RC Racing Event
10) An RC racing event, whether or not an AMA Rule
Book event, is one in which model aircraft compete
in flight over a prescribed course with the objective of
finishing the course faster to determine the winner.
A. In every organized racing event in which
contestants, callers and officials are on the course:
1. All officials, callers and contestants must properly
wear helmets, which are OSHA, DOT, ANSI, SNELL or
NOCSAE approved or comparable standard while on
the racecourse.
2. All officials will be off the course except for the
starter and their assistant.
3.”On the course” is defined to mean any area beyond
the pilot/staging area where actual flying takes place.
B. I will not fly my model aircraft in any organized
racing event which does not comply with paragraph A
above or which allows models over 20 pounds unless
that competition event is AMA sanctioned.
C. Distance from the pylon to the nearest spectator
(line) will be in accordance with the current
Competition Regulations under the RC Pylon Racing
section for the specific event pending two or three
pylon course layout.
11) RC night flying is limited to low-performance
models (less than 100 mph). The models must be
equipped with a lighting system that clearly defines
the aircraft’s attitude at all times.
55
ƒ
5.
© 2006 Horizon Hobby, Inc.
4105 Fieldstone Road
Champaign, Illinois 61822
(877) 504-0233
horizonhobby.com
8627
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