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Old 04-19-2018, 02:52 PM
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Royatl Royatl is offline
SPEV/Orion wrangler
 
Join Date: Mar 2005
Location: Atlanta, GA
Posts: 2,645
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Quote:
Originally Posted by Gus
GH,

A "kid" I know and her dad have both used the D10 to great effect in minimum diameter tubes for altitude record attempts.

But in 18 mm tubes they usually destroy the tube after a single flight. I wouldn't fly them in anything painted.

I DO find the D21 a great motor for the Semroc Mars Lander.


I've flown a Discount Rocketry Tube-Oh with a D21, TWICE and gotten it back. There was a little discoloration on the tube following the second flight.

I've flown one of the Estes E2X rockets on D21, TWICE! and gotten it back (though the first time was a bit dicey... it just managed to find the side of a road in a forest next to the launch site. Just dropped right in between two large stands of trees.). I expected the motor mount to melt a little, but it survived nicely.
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