Quote:
Originally Posted by Greg Peshek
Sadly that hasn't worked with the tests our team has doen, the porous nature of the ball's geometry tends to not move it at all. Our tests were all done with a 22" blade with a 3D-10A pitch blade that was moving a lot of air at a 1:1 ratio from a CIM. YMMV.
Looking good guys, keep it up.
-Greg
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Yeah, that's why we have a 3.5 multiplier on our props. So the 2.5 k rpms you get on a CIM motor at peak power output you don't have nearly enough pushing power. Our props are actually push them at about a walking pace.
See, ideally you reach 88% - 94% the speed of sound on the tips of your props in order to get maximum power.