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Old 02-13-2006, 01:00 PM
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CPMcGraw CPMcGraw is offline
Join Date: Mar 2005
Location: Mobile, Alabama
Posts: 5,357
Default Spear Tip -- Update

I am pleased to announce that this model has been built and flown successfully on both A3-4T and A10-3T motors by Geoffrey Kerbel. His observed flight performance was very close to what RockSim predicted it should be, between 400' and 460' on both motors.

Attached is a photo of his model, with a true conical NC instead of the Ogive of the original design.
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Craig McGraw

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