SCrocketfan
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- Jul 3, 2014
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Hi all,
The classic Astron Birdie is a great rocket, and I have build several clones. When I found larger (about 5 inch) badmitton birdies, it seemed an upscale was in order.
I'm about 2/3rds of the way through the build, and ran a rough rocksim to determine about 1 oz of nose weight is needed. It uses 2mm depron foam centering rings since they only have to center the motor and not withstand the thrust of the motor. This should be able to fly most delay C11 and D12 motors, it will be tested with a c11-3 or d12-0 for the first time this saturday if it finish it.
Due to CG on this rocket, it cannot fly motors larger than Estes d12s...yet.:wink:
The classic Astron Birdie is a great rocket, and I have build several clones. When I found larger (about 5 inch) badmitton birdies, it seemed an upscale was in order.
I'm about 2/3rds of the way through the build, and ran a rough rocksim to determine about 1 oz of nose weight is needed. It uses 2mm depron foam centering rings since they only have to center the motor and not withstand the thrust of the motor. This should be able to fly most delay C11 and D12 motors, it will be tested with a c11-3 or d12-0 for the first time this saturday if it finish it.
Due to CG on this rocket, it cannot fly motors larger than Estes d12s...yet.:wink: