Stanbridges Hobbies - What You Need To Know About Rockets

Stanbridges Hobbies - What You Need To Know About Rockets
Model Rockets
So you think you want to buy a Model Rocket
There are a number of things that you need to know so
you can get started.
23 Railway Pde Mt Lawley WA 6050 (Opposite the Mt Lawley subway).
Telephone: (08) 9271 8929 Country Freecall: 1800 811 455
Facsimile: (08) 9271 4683 Email: [email protected]
Web Address: ABN 11 660 303 974
SUNDAY 10am –2pm MONDAY 9am—5.30pm TUESDAY 9am—5.30pm WEDNESDAY 9am—5.30pm
THURSDAY 9am—8pm FRIDAY 9am—5.30pm SATURDAY 9am—5pm
You will need a Model Rocket Starter Set
Most Starter Sets cost between $50 to $75.
All have basically the same items included. : a Launch Pad, a
Controller and a Model Rocket. They do NOT include Engines
or Batteries—these need to be purchased separately and are
available at the front counter.
Once you have a Starter Set you can then launch most rockets
with the same equipment. Some bigger rockets may need a
thicker and longer launch rod.
The Launch Pad, Controller and Rocket can be used over and
over again. The only consumable items are the Rocket Engines, Recovery Wadding and Batteries. The Batteries will last a
long time. Should you lose or destroy your rocket then all you
need to do is buy another rocket.
All engines are at the Front Counter
Prices Correct as at 9th August 2014
Rough Guide to Rocket Engines
All heights mentioned on Rockets and Starter sets are with the most powerful
engine that will fit the Rocket
All Rockets and Starter Sets list the Engines that are applicable to the Rocket on
the packaging
As you go up a letter in the Engine prefix you will roughly double the height
the Rocket will go
The Last number in the Engine Code is the number of seconds of delay in the
Engine from running out of the thrust stage to the Ejection Charge going off
The most popular Engine Sizes are the 18mm Engines
Engines are ignited electrically with Ignitors that come with the Engines
The Launch Controller—used to ignite the Engines, require 4 AA Alkaline
Batteries or a 9V Alkaline Battery
Engines and Ignitors can only be used once—the Rocket can be used over and
over again—as long as you get it back!
Packets of 4 12mm engines
1/2 A3-2T $15.95
1/2 A3-4T $16.95
Packets of 3 18mm engines MOST POPULAR SIZE
The Department of Mines and Petroleum Resources Safety in Western Australia
require that the purchaser of D Engines and above are a member of an
established Model Rocket Club.
Packets of 3 24mm engines
Bulk Box of 24 18mm engines
Mixture Pack 6 x A, 6 x B, 12 x C
All Bulk packs contain 24 engines, 30 ignitors and 1 packet of recovery
Recovery Wadding $11.95
Spare Ignitors
Packet 6
CONSTRUCTION. My rocket will be made of light-weight materials such as paper, wood,
rubber and plastic, without any metal parts as structural parts.
2 ENGINES. I will use only pre-loaded factory made NAR certified model rocket engines in
the manner recommended by the manufacturer. I will not alter or dismantle model rocket
engines or their ingredients in any way or attempt to reload these engines.
3 RECOVERY. I will use a recovery system in my rockets that will return them safely to the
ground so that they may be flown again. I will only use flame resistant wadding in my rockets.
4 WEIGHT LIMITS. My model rocket will weigh no more than 1500 grams (53 oz.) at lift-off
and the engines will contain a total of no more that 125 grams (4.4 oz) of propellant. My
model rockets will use the engines recommended by the manufacturer of my rocket.
5 STABILITY. I will check the stability of my model rockets before their first flight, except when
launching models of proven stability.
6 PAYLOADS. My model rockets will never carry live animals or payloads that are intended
to be inflammable or explosive.
7 LAUNCH AREA. I will launch my model rockets outdoors in a cleared area, free of tall
trees, power lines and buildings. I will ensure that people in the vicinity are aware of the
pending rocket launch and are in a position to see the rockets lift-off before I begin my audible 5 second countdown.
8 LAUNCHER. I will launch my model rockets from a rod or other device which provided
rigid guidance until the rocket has reached a speed adequate to ensure a safe flight path.
To prevent accidental eye injury, I will always place the launcher so that the end of the rod
is always above eye level or will cap the launch rod when approaching it. I will cap or disassemble my launch rod when not in use and will never store it in an upright position. The
launch device will have a jet deflector to prevent the engine exhaust from hitting the
ground directly. I will always clear the ground around my launch device of brown grass,
dry weeds and any other easy-to-burn materials.
9 IGNITION SYSTEM. The system I use to launch my model rockets will be remotely controlled and electrically operated and will contain a launching switch that will return to “off”
when released. The system will contain a removable safety interlock in series with this firing
switch. When launching, all persons will remain at least 15 feeet (5 metres) away from my
model rocket when igniting engines totaling 30 N-sec of total impulse or less and at least 30
feet (10 metres) when igniting engines totaling more than 30 N-sec of total impulse. I will
use only electrical igniters which will ignite my rocket engines within one second of actuation off the launch system.
10 LAUNCH SAFETY. I will not let anybody approach a model rocket on a launcher until I
have made sure that the safety interlock has been removed or the battery disconnected
from the launcher. In the event of a misfire I will wait one minute before allowing anyone
to approach the launcher.
11 FLYING CONDITIONS. I will launch my model rockets only when the wide is less that 20
miles per hour, under conditions where the model will not fly into clouds, fly near aircraft in
flight or be hazardous to people or property.
12 PRE-LAUNCH TEST. When conducting research activities with unproven designs or methods I will, when possible, determine their reliability through pre-launch tests. I will conduct
launchings of unproven designs in complete isolation from persons not participating in the
actual landings.
13 LAUNCH ANGLE. I will not launch rockets so their flight path will carry them against targets. My launch device will be pointed within 30 degrees of the vertical. I will never use
model rocket engines to propel any device horizontally .
14 RECOVERY HAZARDS. If a model rocket becomes entangled in power lines or other dangerous place, I will not attempt to retrieve it.
15 PRODUCT SALES. Sales of engines to persons under the age of 18 years without parental
authority are prohibited.
16 LAUNCHING SITES. Launching of model rockets in an aviation flight zone or within 5 kilometres of an airport is prohibited.
17 ALTITUDE LIMITATIONS. No launching of a rocket over 300 feet without Civil Aviation
Safety Authority (CASA) notification and/or approval is permitted.
Should you wish to know more about launching
bigger rockets with D Engines up to M engines
then contact the
Perth Advanced Rocket Club Phillip Moore on 0418 917 410
Prices Correct as at 9th August 2014
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