Comment on "Efficiency: Perfect pitch UAVs and airboats lead to new propellers (at least some good from UAVs / Drones)"
...s with his long wings in sink may flap for short durations and is exstreamly effiecient. i believe these coefficiants apply also to trikes propellers engines.as that curve moves u...Comment on "Propeller test comparisons - are you paying too much?"
...esearch going back into good old propeller technology due to UAV/Drone development. I did find this article though- discussing advances in propellers, especially silent technologi...Comment on "2013- March 6th: Carl Carlsen's fatal flight- Airborne XT, Streak III wing, Rotax 912 80 HP"
...o; Long Jetty resident Grant Sewell said. ‘‘It went past the trees and then we just heard this loud sound, it must have been the propellers crashing into the water. Ther...