Making a Rocket Car or Boat - Tips and Ideas

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SUMMARY

This discussion focuses on the creation of a rocket car or boat using C-sized rocket motors, which generate approximately 5 pounds of thrust each. Participants share insights on maintaining stability and control, emphasizing the importance of a power-to-weight ratio below 1 to prevent excessive lift-off. Suggestions for design improvements include avoiding large inverted aerofoils that could destabilize the vehicle. The conversation also touches on the nostalgia of model rocketry and the desire for synchronized ignition displays reminiscent of shuttle launches.

PREREQUISITES
  • Understanding of model rocketry principles
  • Knowledge of thrust-to-weight ratio calculations
  • Familiarity with basic aerodynamics
  • Experience with rocket motor types, specifically C-sized motors
NEXT STEPS
  • Research rocket stability and control mechanisms
  • Learn about thrust-to-weight ratio optimization techniques
  • Explore design strategies for rocket vehicles
  • Investigate synchronized ignition systems for model rockets
USEFUL FOR

Hobbyists in model rocketry, engineers interested in propulsion systems, and anyone looking to build and experiment with rocket-powered vehicles.

Saoist
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i used to do model rocketry but have given it up for some time...i was rummaging through old stuff and found about 10 C-sized motors and began thinking what i could do with them.

if i find some spare time i might make a simple rocket car or rocket boat. however, do ppl have tips (other than putting a big inverted aerofoil on the car/boat) so it doesn't do this? ---> http://www.big-boys.com/articles/rocketcar.html
 
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Uh, well, a power to weight ratio below 1 will at least keep it near the ground...

IIRC, a C motor generates like 5lb of thrust.
 
wish the folks hadnt chucked my old rockets in a box in the attic...would've been cool to do a synched display of all of them with synchronised ignition...bit like the shuttle takeoffs in armegeddon, without all the yelling from willis.
 

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