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Old 10-31-2007, 05:14 PM
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CPMcGraw CPMcGraw is offline
Join Date: Mar 2005
Location: Mobile, Alabama
Posts: 5,357
Exclamation New Plan -- 24mm AstroVision Booster

Got one of these in working order today, after picking up a dud yesterday. I wanted to see if I could come up with a better booster that would give some real performance, or at least gain some substantial altitude, compared to the booster you get with the camera. This first version is a throw-together, what-if type of design, and I'm just guessing about the actual weight of the camera. I have not yet weighed the payload to get an accurate value, but I'm guessing no more than 2.5 oz. It really doesn't feel that heavy, maybe just a little more than a hollow plastic NC of the same size.

The camera shoulder loose-fits into a standard ST-13 tube, so that's where I'm starting from. Other variations of this theme are coming, so this is just a beginning baseline.

Length: 19.30"
Diameter: 1.34 (ST-13)
Fin Span: 4.84"
Weight: 3.31 oz (Camera estimated at 2.5 oz)

D12-5......1015'......Dv 26 FPS......48" x 3/16" Rod

Takes about 7.2 seconds to reach apogee, so the 12-18 seconds of record time should be enough to get a flight video.

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Craig McGraw

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