Model Rocketry/Expert Profile

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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.

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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.

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brian03/07/12101010thank u very much for yor insight .....
Libby01/13/12101010Wow! Thanks so much. You were very .....
Joshua03/10/11101010Can't believe how fast my questions were .....
dan08/21/10101010Super knowledge in field. Got my question .....
Kerry08/26/09101010Thanks a million! Great info. and great .....

Recent Answers from James Bell

2014-11-20 Tracking rockets:

Justin -    I can't speak for cell phones as I am not familiar with the various brands and their features.    Most model rocketry entheusiasts use trackers designed for the task.    http://www.adeptrocketry

2014-05-19 Model Rocket:

Dear LM -    I will admit I am not familiar with the concept of bungee cord rockets, but I did look them up through a variety of web sources.  In essence, I think the main thing you are looking for is

2014-04-17 rocktery:

Joseph -    Have you looked into AdeptRocketry (  They have altimeters that can stage ejection charges.  I have one that goes off at apogy to break the rock in two, making

2012-06-16 measuring height of launched rocket:

Jarett -    There are three ways you can calculate a rocket's maximum altitude.  I have examples listed on a webpage I set up for rocketry:

2012-05-14 Interceptor G Engine mount:

Thomas -    The Estes Interceptor "G" is the big brother to the Interceptor "E".  As the name states, it is designed for a "G" motor.  The minimum specs I have seen for it are an F62-4.  I don't know the


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