11-06-2022, 02:23 PM
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Cardstock Designer
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Join Date: Oct 2012
Location: Nikiski, Alaska
Posts: 353
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Basic Build Complete
Finished the major construction steps, need to add parachute, shock cord.
For display still need to make the engine bells to stand on.
Photos show final construction steps.
1st 2 photos are the engine mount
Next photo shows the screws used to push/pull the bulkhead into postion. Marks around inside of shell are 1/2" mark for the bulkhead.
fin location cut outs in the bottom bulkhead
Gluing fairings on
1st Fin is attached
View of oversize fins and the ones on the larger rocket.
Rockets
Last photo shows the weight of the completed rocket minus, shock cord/parachute. 7.7oz
Well under 10-oz max design proposal. Used an E-size engine mount, first flights will be a D12-3.
UPDATE: 7NOV22; Rocket has lost weight while the glue dries, 7.5oz today. With a D12-3 it weighs 9.1oz
Purchased some parachutes from eBay last night. Forgot to order them with my last order for stuff. Bought a few 30" and 32" sizes, already have 24", which doesn't look to be big enough for this rocket. On-line calculators say everything from 27" through 36".
Mike
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