06-05-2005, 09:55 PM
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BARCLONE Rocketry
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Join Date: Mar 2005
Location: Mobile, Alabama
Posts: 5,357
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Quote:
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Originally Posted by Tweener
 (sigh) I had hoped to be able to fly on cheap (er) E power. How about the Aerotech E15-7W? Then I wouldn't even have to change the mount. |
In the simulation drawing, I used a 6" motor mount, but installed the motor block at 3.5" from the rear of the tube.
The E15-7 is one of the motors I used in the list. The simulator hit 1518', and reached speed at 36.25". Still needs the 48" rod.
Best altitude was with the F24-7, with 1719'. Speed was reached at 27.2", meaning you can squeak by with a 36" rod here. I'd still use the 48" rod for the additional speed before free-flight.
Craig McGraw |