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Updated: May 21

Model Rocketry is a fun and safe family activity.

model rocketry is a science your results may vary depending on how you build the rocket. please read the National Association of Rocketry model rocketry safety code and the model rocket handbook.

My Instructions are meant as a guide and are not a guarantee of stability or function of the product.

This rocket has been tested and proven but your results may be different.

Launching rockets can be dangerous and requires adult supervision. you use our products at your own risk. OLLIE-OOP Model Rocketry is not responsible for any damages or injuries incurred from use or misuse of our products. you are responsible for the Contruction and stability of your rocket. please follow all safety codes and launch procedures as stated by the NAR handbook.

our kits are not intended to be modified. Please use the recommended engines.

Always follow the NAR safety code at

Martian Probe Instructions
Download PDF • 885KB

CG 7 inches from AFT end.

Length 26"

BT-60 Body tube

24mm Motors Cs, Ds

Mylar chute

Laser cut balsa fins

plywood rings

Kevlar and elastic cords

Read all instructions before beginning.

Locate motor mount parts

Locate the motor tube, rings, braided cord and motor hook.

Make a mark 1/4" from the end of the motor tube and a mark from the other end at 1."

Using a hobby knife make a 1/8" slit at the 1/4" mark.

Test fit the rings on the tube with motor hook in the 1/8" slit, if the parts don't fit together easily, lightly sand the inside of the ring until everything fits.