Model Rocketry/Model Rocketry

Advertisement

Expert: James Bell - 6/23/2009


Question
How does weight effect altitude on rockets, and can you give me sites pertaining to your answer or evidence?

Answer
Bobby -

I'll do you one better.  Download the following program ...

http://64.41.64.113/home/rockets/altpred.zip

It is an altitude prediction program.  Input the diameter of the rocket, the loaded weight and motor, and it will give you a good idea of its performance.  You can play with different weights and motor combinations to see how that affects performance.  I've had a lot of fun working different combinations to maximize performance.

Enjoy, and good luck.

Sincerely,
James Bell

Model Rocketry

All Answers

Answers by Expert:

Ask Experts

Volunteer

James Bell

Expertise

I am a member of Tripoli Rocketry Association, and am certified to fly hi power rockets. I can answer questions anyone may have about design, materials selection, stability calculations, motor selection, altitude and performance predictions, and parachute and recovery options.

Experience

I make my rockets from existing kits or parts readily made through commercial channels. I do NOT make my own motor propellants (they are challenging enough even for the companies that do this for a living), and I do not advocate making rockets using "typical household item" such as paper towel rolls.

©2012 About.com, a part of The New York Times Company. All rights reserved.