02-06-2020, 07:41 PM
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Retired with Way Too Many Kits
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Join Date: Jun 2007
Location: Colorado
Posts: 3,222
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Be careful with Estes designations. The average thrust of an A8-3 is not 8 N, its listed as 3.18 N on the NAR thrust curve. But ... it has a pretty healthy peak thrust, and 3 will give a good kick.
http://nar.org/SandT/pdf/Estes/A8.pdf
Some motors are pretty accurately described, like the C11. It’s average thrust is 10.86 N. (A bit more than the D12 average of 10.21 N.)
http://www.nar.org/SandT/pdf/Estes/C11.pdf
http://www.nar.org/SandT/pdf/Estes/D12.pdf
The biggest surprise for me were the designations on the Aerotech D13 and D24 reloads for the 18/20 RMS. The curves are very similar, and the designations should be D13 and D15. I’ve used the D13 in my Mars Lander. I thought the D24 would be overkill. I’ll try them next, and expect little difference.
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Lee Reep
NAR 55948
Projects: Semroc Saturn 1B, Ken Foss Designs Mini Satellite Interceptor
In the Paint Shop: Nothing! Too cold!
Launch-Ready: Farside-X, Maxi Honest John, Super Scamp
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