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Model Rocketry/Expert Profile
Expertise
Can: Nearly all low-power and some high-power rocketry questions. Can't: Anything that approaches violations of NAR/TRA safety codes; advanced high-power rocketry questions beyond L1 (I'm still learning those myself).
Experience in the area
NAR Level 1 high-power certification; BSA Space Exploration Merit Badge counselor; many years of experience in building and flying rockets from mini-motors (A3-4T) up to H impulse.
Organizations
National Association of Rocketry; NAR Section 703 TORC in Dayton, OH.
Education/Credentials
None specific to rocketry.
Average Ratings
Recent Reviews from Users
K = Knowledgeability C = Clarity of Response T = Timeliness P = Politeness| User | Date | K | C | T | P | Comments |
|---|---|---|---|---|---|---|
| Jason | 10/14/09 | 10 | 10 | 10 | 10 | Dave was extremely helpful and thorough in ..... |
| Robert | 03/11/09 | 10 | 10 | 10 | 10 | Great help and excellent suggestions. Will definitely ..... |
Recent Answers from Dave Combs
2009-10-10 attaching fins:
First and foremost, CONGRATULATIONS and well done to you for starting a rocketry club at school! Your efforts will inspire your students to do well in your classes and get at least a few to consider careers
2009-07-30 Hey:
A6-4 engines are only produced by Quest; this makes them a little harder to come by (Estes BY FAR dominates the engine market). Your best bet is online, and the site I'd steer you to is Quest's own site
2009-06-23 Model Rocketry:
While it's easy to simply say "a heavier rocket won't go as high", the real answer lies in finding the optimum mass of your rocket. In other words, there is a mass that will cause your rocket to be as
2009-06-19 Hey:
1. They will usually be cheapest online, even after shipping cost is included. 2. Quest is the only manufacturer of A6-4 engines. Why is this important? Because Quest doesn't have anywhere near the
2009-06-16 Starter:
First, let me say I'm glad you're getting into the rocketry hobby; you're going to enjoy it. The Astra III Starter Set gives you everything you'll need for a good while. It includes the launch pad and
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