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NORTH AMERICAN
HARVARD AT-6
RADIO CONTROL MODEL / RC FLUGMODELL VQAO1 Red
VQAO2 Black
SPECIFICATIONS
Wingspan
Length
Flying weight
Electric Motor
Glow Engine
Radio
Technische Daten
Spannweite
Länge
Fluggewicht
Elektroantrieb
Verbrennerantrieb
Fernsteuerung
1540mm
1030mm
2700g
650 Watt (BOOST 40)
6,5cc 2T / 8,5cc 4-T
5 Channel / 6 Servos
1540mm
1030mm
2700g
650 Watt (BOOST 40)
6,5cc 2T / 8,5cc 4T
5 Kanal / 6 Servos
WARNING! This radio controlled model is NOT a toy. If modified or flown carelessly it could go out of controll and
cause serious human injury or property damage. Before flying your airplane, ensure the air field is spacious enough.
Always fly it outdoors in safe areas and seek professional advice if you are unexperienced.
ACHTUNG! Dieses ferngesteuerte Modell ist KEIN Spielzeug! Es ist für fortgeschrittene Modellflugpiloten bestimmt,
die ausreichende Erfahrung im Umgang mit derartigen Modellen besitzen Bei unsachgemäßer Verwendung kann
hoher Personen- und/oder Sachschaden entstehen. Fragen Sie in einem Modellbauverein in Ihrer Nähe um
professionelle Unterstützung, wenn Sie Hilfe im Bau und Betrieb benötigen. Der Zusammenbau dieses Modells ist
durch die vielen Abbildungen selbsterklärend und ist für fortgeschrittene, erfahrene Modellbauer bestimmt.
PICHLER
BUILDING INSTRUCTIONS / MONTAGEANLEITUNG
VQAO1 N
HARVARD AT-6
RADIO CONTROL MODEL / RC FLUGMODELL VQAO1 Red
VQAO2 Black
SPECIFICATIONS
Wingspan
Length
Flying weight
Electric Motor
Glow Engine
Radio
Technische Daten
Spannweite
Länge
Fluggewicht
Elektroantrieb
Verbrennerantrieb
Fernsteuerung
1540mm
1030mm
2700g
650 Watt (BOOST 40)
6,5cc 2T / 8,5cc 4-T
5 Channel / 6 Servos
1540mm
1030mm
2700g
650 Watt (BOOST 40)
6,5cc 2T / 8,5cc 4T
5 Kanal / 6 Servos
WARNING! This radio controlled model is NOT a toy. If modified or flown carelessly it could go out of controll and
cause serious human injury or property damage. Before flying your airplane, ensure the air field is spacious enough.
Always fly it outdoors in safe areas and seek professional advice if you are unexperienced.
ACHTUNG! Dieses ferngesteuerte Modell ist KEIN Spielzeug! Es ist für fortgeschrittene Modellflugpiloten bestimmt,
die ausreichende Erfahrung im Umgang mit derartigen Modellen besitzen Bei unsachgemäßer Verwendung kann
hoher Personen- und/oder Sachschaden entstehen. Fragen Sie in einem Modellbauverein in Ihrer Nähe um
professionelle Unterstützung, wenn Sie Hilfe im Bau und Betrieb benötigen. Der Zusammenbau dieses Modells ist
durch die vielen Abbildungen selbsterklärend und ist für fortgeschrittene, erfahrene Modellbauer bestimmt.
PICHLER
BUILDING INSTRUCTIONS / MONTAGEANLEITUNG
VQAO1 N

TOLLS REQUIRED
Hobby knife
Needle nose Pliers
Phillip screw driver Awl
Scissors
Wire Cutters
(Purchase separately) Hex Wrench
..................................................................................................................
.........................................................
.........................................................
.........................................................
......................................................................................................................................................................................................................................................................................................................................................
Sander
1.5mm
A B
!
CA L/R Assemble left and right
sides the same way. X
Drill holes using the stated
size of drill
(in this case 1.5 mm Ø)
Use epoxy glue
Take particular care here
Hatched-in areas:
remove covering
film carefully
Not included.
These parts must be
purchased separately
Check during assembly that these
parts move freely, without binding
Apply cyano glue
Low setting
SILICON
EPOXY A
EPOXY B
CA
GLUE
Epoxy Glue ( 5 minute type)Silicon sealer Cyanoacrylate
Glue
Minimum 5 channel radio
for airplane with 5 servos
.50 ~.52 - 4 cycle
10.5x6 for .40 - 2 cycle engine
11x6 for .46 - 2 cycle engine
11x7 for .52 - 4 cycle engine
12x7 ~13x6 - Electric Motor
Silicone tube
Extension for aileron
servo and power pack
.40 ~ .46 - 2 cycle
REQUIRED FOR OPERATION (Purchase separately)
Epoxy Glue (30 minute type)
Masking tape - Straight Edged Ruler - Pen or pencil - Rubbing alcohol - Drill and Assorted Drill Bits
Read through the manual before you begin, so you will have an overall idea of what to do.
Symbols used throughout this instruction manual, comprise:
(Purchase separately)
.Motor x1 .Aileron (mini servo) x2
.Elevator x1 .Rudder x1
CONVERSION TABLE
1.0mm = 3/64”
1.5mm = 1/16”
2.0mm = 5/64”
2.5mm = 3/32”
3.0mm = 1/8”
4.0mm = 5/32”
5.0mm = 13/64”
6.0mm = 15/64”
10mm = 13/32”
12mm = 15/32”
15mm = 19/32”
20mm = 51/64”
25mm = 1”
30mm = 1-3/16”
45mm = 1-51/64”
650Watt
Brushless Motor
Retract landing
gear VQAR01
Retract servo
x1
BENOTIGTE KOMPONENTEN FUR DEN ABFLUG (Nicht enthalten)
If exposed to direct sunlight and/or heat, wrinkels can appear. Storing the
model in a cool place will let the wrinkles disappear. Otherwise, remove
wrinkles in covering film with a hair dryer, starting with
low temperature. You can fix the corners by using a hot iron.
Bei Sonneneinstrahlung und/oder Wärme kann die Folie erschlaffen bzw. Falten
entstehen. Verwenden Sie ein Warumluftgebläse (Haartrockner) um evtl. Falten aus der Folie
zu bekommen. Die Kanten können Sie mit einem Bügeleisen behandeln. Nicht zuviel Hitze anwenden !
Hobby knife
Needle nose Pliers
Phillip screw driver Awl
Scissors
Wire Cutters
(Purchase separately) Hex Wrench
..................................................................................................................
.........................................................
.........................................................
.........................................................
......................................................................................................................................................................................................................................................................................................................................................
Sander
1.5mm
A B
!
CA L/R Assemble left and right
sides the same way. X
Drill holes using the stated
size of drill
(in this case 1.5 mm Ø)
Use epoxy glue
Take particular care here
Hatched-in areas:
remove covering
film carefully
Not included.
These parts must be
purchased separately
Check during assembly that these
parts move freely, without binding
Apply cyano glue
Low setting
SILICON
EPOXY A
EPOXY B
CA
GLUE
Epoxy Glue ( 5 minute type)Silicon sealer Cyanoacrylate
Glue
Minimum 5 channel radio
for airplane with 5 servos
.50 ~.52 - 4 cycle
10.5x6 for .40 - 2 cycle engine
11x6 for .46 - 2 cycle engine
11x7 for .52 - 4 cycle engine
12x7 ~13x6 - Electric Motor
Silicone tube
Extension for aileron
servo and power pack
.40 ~ .46 - 2 cycle
REQUIRED FOR OPERATION (Purchase separately)
Epoxy Glue (30 minute type)
Masking tape - Straight Edged Ruler - Pen or pencil - Rubbing alcohol - Drill and Assorted Drill Bits
Read through the manual before you begin, so you will have an overall idea of what to do.
Symbols used throughout this instruction manual, comprise:
(Purchase separately)
.Motor x1 .Aileron (mini servo) x2
.Elevator x1 .Rudder x1
CONVERSION TABLE
1.0mm = 3/64”
1.5mm = 1/16”
2.0mm = 5/64”
2.5mm = 3/32”
3.0mm = 1/8”
4.0mm = 5/32”
5.0mm = 13/64”
6.0mm = 15/64”
10mm = 13/32”
12mm = 15/32”
15mm = 19/32”
20mm = 51/64”
25mm = 1”
30mm = 1-3/16”
45mm = 1-51/64”
650Watt
Brushless Motor
Retract landing
gear VQAR01
Retract servo
x1
BENOTIGTE KOMPONENTEN FUR DEN ABFLUG (Nicht enthalten)
If exposed to direct sunlight and/or heat, wrinkels can appear. Storing the
model in a cool place will let the wrinkles disappear. Otherwise, remove
wrinkles in covering film with a hair dryer, starting with
low temperature. You can fix the corners by using a hot iron.
Bei Sonneneinstrahlung und/oder Wärme kann die Folie erschlaffen bzw. Falten
entstehen. Verwenden Sie ein Warumluftgebläse (Haartrockner) um evtl. Falten aus der Folie
zu bekommen. Die Kanten können Sie mit einem Bügeleisen behandeln. Nicht zuviel Hitze anwenden !

A B
A B
3. Joining the wing
1. Retract landing gear installation
Retract pushrod
L/R
.............2
..........2
1/8”(3x6mm) screw
11/64” I.D Collar
3”(75 mm) wheel
ABS gear cover
X
5/64”(2x6mm) screw
...........8
Screw
.......8
TOP VIEW
BOTTOM VIEW
BOTTOM VIEW
CA
3mm
1/8 in.
2mm
5/64
2mm
5/64
2x6mm screw
5/64” screw
1.5mm
1/16
! Make sure to glue securely, If not
properly glued, a failure in flight may
occur.
Use epoxy glue to bury the opening
11/64”(4.3mm) I.D Collar
Trial fit the push rod into the wing. Join
the pushrod to the retract gear arm and
trial fit the retract into the wing.
Pull and push the retract push rod by hand
to be sure to adjust the stroke so that the
landing gear locks in both up and down
position.
After checking that the retract works
smoothly with the servos, fix the retract
on the wing with 3x12mm screws
2. Retract landing gear installation
1- Using a pencil, mark the center of the brace.
2- Trial fit the wing joiner into one of the wing
panels. It should insert smoothly up to the
center line marked above.
3- Slide the other wing half onto the dihedral brace until the wing panel meet. If the fit is over tight, it may be necessary
to lightly sand the dihedral brace.
4- Check for the correct dihedral angle.
5- Mix approximately 30 minute epoxy and apply a generous amount of epoxy into the wing joiner cavity of one wing half.
6- Coat one half of the dihedral brace with epoxy up to the center line. Install the epoxy-coated side of the dihedral brace
into the wing joiner cavity up to the center line, marking sure that the “V” of the dihedral brace is positioned correctly
7- Do the same way with the other wing half.
8- Carefully slide the wing halves together, ensuring that they are accurately aligned. Firmly press the two halves
together, allowing the excess epoxy to run out. Clean off the excess epoxy.
Center line
..........2
1/8x15/32”(3x12mm) 1/8x15/32”(3x12mm)
IMPORTANT: Please do not clean off the excess epoxy on the wing with strong solvent or pure alcohol, only use kerosene to keep
the colour of your model not fade.
A B
3. Joining the wing
1. Retract landing gear installation
Retract pushrod
L/R
.............2
..........2
1/8”(3x6mm) screw
11/64” I.D Collar
3”(75 mm) wheel
ABS gear cover
X
5/64”(2x6mm) screw
...........8
Screw
.......8
TOP VIEW
BOTTOM VIEW
BOTTOM VIEW
CA
3mm
1/8 in.
2mm
5/64
2mm
5/64
2x6mm screw
5/64” screw
1.5mm
1/16
! Make sure to glue securely, If not
properly glued, a failure in flight may
occur.
Use epoxy glue to bury the opening
11/64”(4.3mm) I.D Collar
Trial fit the push rod into the wing. Join
the pushrod to the retract gear arm and
trial fit the retract into the wing.
Pull and push the retract push rod by hand
to be sure to adjust the stroke so that the
landing gear locks in both up and down
position.
After checking that the retract works
smoothly with the servos, fix the retract
on the wing with 3x12mm screws
2. Retract landing gear installation
1- Using a pencil, mark the center of the brace.
2- Trial fit the wing joiner into one of the wing
panels. It should insert smoothly up to the
center line marked above.
3- Slide the other wing half onto the dihedral brace until the wing panel meet. If the fit is over tight, it may be necessary
to lightly sand the dihedral brace.
4- Check for the correct dihedral angle.
5- Mix approximately 30 minute epoxy and apply a generous amount of epoxy into the wing joiner cavity of one wing half.
6- Coat one half of the dihedral brace with epoxy up to the center line. Install the epoxy-coated side of the dihedral brace
into the wing joiner cavity up to the center line, marking sure that the “V” of the dihedral brace is positioned correctly
7- Do the same way with the other wing half.
8- Carefully slide the wing halves together, ensuring that they are accurately aligned. Firmly press the two halves
together, allowing the excess epoxy to run out. Clean off the excess epoxy.
Center line
..........2
1/8x15/32”(3x12mm) 1/8x15/32”(3x12mm)
IMPORTANT: Please do not clean off the excess epoxy on the wing with strong solvent or pure alcohol, only use kerosene to keep
the colour of your model not fade.

CA
CA
4. Servo tray
X
EXTENDED RETRACTED
Retract servo
Right
Left
5. Servo installation
Retract servo tray
1/8(3mm plywood)
Aileron servo tray
1/8(3mm plywood)
Cut away only
the covering
1.5mm
1/16”
Link the servo and retract gear arm with pushrod. Be sure
to adjust the stroke so that the landing gear locks in both
up and down position.
Using the aileron servo tray (D) as a template,
trace around the outside edge of the aileron
servo tray and then remove it.
Using a sharp hobby knife, cut away the covering
inside the lines. Not to cut into the wood.
Apply the aileron servo tray(D) in place and secure the
servo tray with CA glue.
B C
ACENTER
WING
SECTION
CA
CA
CA
CA
BOTTOM
A
B
C
Retract servo tray installation
BOTTOM
Note: The head of servo should be positioned
toward the rear of the wing.
CENTER
WING
SECTION
Install one clevis onto each of the aileron pushrod.
With the ailerons and the aileron servo in the neutral
position, mark the position where each of the
linkages will attach to the servo arm.
A small piece of masking tape works well for this.
Cut off the excess length of each rod.
Ensure that the servo is centered. If necessary,
adjust the metal clevis so the aileron is also in
the neutral position.
IN CASE OF MECHANIC RETRACT
TOP VIEW
TOP VIEW
CA
4. Servo tray
X
EXTENDED RETRACTED
Retract servo
Right
Left
5. Servo installation
Retract servo tray
1/8(3mm plywood)
Aileron servo tray
1/8(3mm plywood)
Cut away only
the covering
1.5mm
1/16”
Link the servo and retract gear arm with pushrod. Be sure
to adjust the stroke so that the landing gear locks in both
up and down position.
Using the aileron servo tray (D) as a template,
trace around the outside edge of the aileron
servo tray and then remove it.
Using a sharp hobby knife, cut away the covering
inside the lines. Not to cut into the wood.
Apply the aileron servo tray(D) in place and secure the
servo tray with CA glue.
B C
ACENTER
WING
SECTION
CA
CA
CA
CA
BOTTOM
A
B
C
Retract servo tray installation
BOTTOM
Note: The head of servo should be positioned
toward the rear of the wing.
CENTER
WING
SECTION
Install one clevis onto each of the aileron pushrod.
With the ailerons and the aileron servo in the neutral
position, mark the position where each of the
linkages will attach to the servo arm.
A small piece of masking tape works well for this.
Cut off the excess length of each rod.
Ensure that the servo is centered. If necessary,
adjust the metal clevis so the aileron is also in
the neutral position.
IN CASE OF MECHANIC RETRACT
TOP VIEW
TOP VIEW









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