DynaStar Grappler Handbuch - Seite 7

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Rocket Preflight
A. Loosely crumple and insert 8 sheets of
recovery wadding into the body tube.
B. Carefully fold the parachute and insert it
into the tube with the shock cord.
C. Insert the motor into the motor tube until
the motor hook holds it in place.
D. Insert and secure the engine igniter as
directed on the package the engines came
with.
Countdown and Launch Procedure.
Fly your rocket on a large field that isn't near
any power lines, trees, or low flying aircraft.
The larger the field, the greater your chances
of recovering your rocket. The launch area
around the pad must be free of dry weeds and
brown grass. Launch only during calm weather
with very little or no wind and good visibility.
Always use a launch pad that includes a blast
deflector.
10. Remove the safety key from the launch
controller
9. Slide the launch lugs over the launch rod
to place the rocket on the pad. The rocket
should slide freely over the rod.
8. Attach the micro-clips to the igniter. The
clips must not touch the other or the metal
blast deflector.
7. Stand back from your rocket as far as the
launch wire allows (at least 5 meters - 15
feet).
6. Insert the safety key to arm the launch sys-
tem. The light (or buzzer) on the controller
should come on.
Give a loud countdown 5 ... 4 ... 3 ... 2 ... 1 ...
LAUNCH!
Push and hold the button until the engine
ignites. Then remove the safety key and place
the safety cap on the launch rod.
Misfire Procedure
Occasionally the igniter will burn, but the mo-
tor will fail to ignite. If this happens, the cause
is that the pyrogen on the igniter was not in
contact with the engines propellant. When an
ignition failure occurs, remove the safety key
from the launch controller and wait 60 seconds
before approaching the rocket. Remove the
old igniter from the engine and install a new
one. Make sure that the igniter is insert fully
into the engine and touches the propellant.
Secure the igniter as directed on the engine
package and repeat the countdown and
launch procedure.
1
2
Spike
Canopy.
4
Roll Sides Inward.
insert parachute last.
Always follow the NAR* Model Rocket Safety Code when launching model
rockets.
*National Association of Rocketry
**Kevlar
is a brand name of E.I. DuPont for their selection of aramid fibers.
®
Only DuPont makes Kevlar
3
Fold
Peak
Down.
Lay Excess String
on Top of Canopy.
5
Loosely Wrap Any
Excess String around
Canopy And Insert.
Place wadding in first. Do
not compact too tight.
Hook securely latched over edge of the
rocket engine.
Make sure the clips don't
touch each other, or the
metal blast deflector.
®
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