jlabrasca
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FWIW what are the dimensions of the clear tubing sold for protecting fluorescent bulbs? Might make a good payload section for an upscale.
Best -- Terry
BMS makes a nosecone sized for a T12 tube protector (I think. Its part number BMSFLMS). with a shoulder diameter of 1.65" -- which is pretty close to BT60. Its a 1.58:1 aspect ratio, though. The X-ray cone was NC20A -- with a 4:1 aspect.
Estes, eRockets and Apogee all sell clear airframe. I don't know if estes BT60 clear payload tube is long enough for a BT55/BT60 X-ray, but Apogee sells it in in 18" sections. I got the BT80 payload for my upscaled Scrambler from Apogee, I think. IIRC the clear BT55 and the BNC55A cone for the upscaled X-ray came from eRockets.