Step 6 – Final Assembly
Insert the largest motor you intend to fly (or simulate the weight with an substitute).
Ensure the CG is forward of the recommended CG. The CG is measured from the tip
of the nose cone. If the CG is behind the specified point, add weight inside the nose
cone by pouring lead shot into the nose cone tip and adding some epoxy.
IMPORTANT:
Screw in a screw through the plastic nose cone into the lead to hold it in place.
Grind or cut off the screw head before filling and applying the nose cone finish.
The epoxy will not stick to the inside of the nose cone and if you do not anchor
with a screw, the liftoff force will cause the weight to become dislodged causing
an unstable model.
You can also place the lead in the base of the nose cone so that it
cannot become dislodged during liftoff, but you will have to use more weight.
Your model is now ready to paint and apply the decal. To apply the cut lettering decal,
carefully remove the backing from the decal - the individual letters will remain stuck
to the top carrier. Next, position the decal were you would like it and carefully smooth
out the top carrier to ensure the letters are securely attached to the rocket body. Last,
carefully remove the top carrier making sure the letters stay attached to the rocket body
and are not lifted with the carrier.
Step 7 – Flying Your Model
Attach the end of the shock cord and the parachute to the payload section eyebolt. You can also
attach the chute protector to the shock cord just below that. When packing your chute, wrap the
chute protector around the chute with the opening in the chute protector facing forward. Always make
sure your chute is well protected as the hot ejection motor gasses will melt the nylon chute.
IMPORTANT: always use positive motor retention to secure the motor. Failure to use motor
retention will cause the motor to be ejected instead of the parachute making for a dangerous
ballistic reentry.
IMPORTANT: some motors do not have a thrust ring that rides against the back of the motor
tube. You can construct a thrust ring by wrapping a ¼” wide strip of masking tape around the
aft end of the motor until you have a layer of masking tape approximately the same thickness
of the motor tube. Do not fly without a thrust ring as the motor will fly through the rocket
causing a dangerously unstable free flying rocket motor.
IMPORTANT: always remember to check your balance point and ensure your CG is ahead of
the specified CG point.
IMPORTANT: Always follow the NAR safety code and remember that rockets are not toys
and can be dangerous if not prepared and used properly. If you are a beginner, it is a good
idea to fly with a club or other group of experienced rocketeers until you have gained some
experience.
IMPORTANT: In no event shall Madcow Rocketry be liable for any direct, indirect, punitive,
incidental, special consequential damages whatsoever arising out of or connected with the
use or misuse of it’s products. The buyer assumes all risk and liability resulting from ANY
use of any and all products sold by Madcow Rocketry. Your purchase and use of any Madcow
Rocketry product constitutes your agreement to and acceptance of these terms. If you do
not agree to these terms and conditions, you must return the unused product in resalable
condition for a refund or credit.
IMPORTANT: Please contact us via phone or email if you have any questions about
constructing or flying your model.
24338 El Toro Rd #E-134
Laguna Woods, CA 92637
949.547.8847
www.madcowrocketry.com
©2006 MadCow Rocketry™
®
