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Interesting to hear about the propeller data.
One more, perhaps inetresting, option:
I will soon be able to make propellers, at will, in 1 day.
The larger cnc mill will be able to handle large props (1200 mm squared
work area).
Alu will work fine for test props, and might work long term- since alu
sailboats last indefinitely.
The ability to generate props "free" (materials cost only), might allow
fast, cheap, development of much more suitable shapes, curves, and sizes.
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Hannu,
Might you be able to create "throwaway" aluminum props for the purposes of data acquisition? Or, even better, email your CNC parameters to a local shop?
My prop can be changed in the water so it could be a continuous testbed without incurring haulout charges.
Not looking for free props here - just want to advance the science. :-)
I'd be happy to buy a set of props at cost (of the aluminum block) that could hopefully be created locally; avoiding customs duties, delays and bureaucratic overhead.
Posted by: moriartybob@yahoo.com
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