Comment on "Efficiency: Perfect pitch UAVs and airboats lead to new propellers (at least some good from UAVs / Drones)"
...props on subs-- but there one goal is also stealth. Noise and cavitation are just sources of power loss. When people talk about efficiency, it's often extracting th...Comment on "Efficiency: Perfect pitch UAVs and airboats lead to new propellers (at least some good from UAVs / Drones)"
...s of fuel injection been out there? I've had high hope for Wankel rotary engines for a long time. They just can't seem to crack the fuel efficiency problems. I still have hope t...Comment on "Hang Gliding from a Triker's Perspective-- Going Back is Going Forward"
...nt of low-aspect ratio wings for triking, despite their comparative inefficiency. I feel they are more suitab...cations (especially small wings). A soaring trike...of course...then efficiency really matters. You are ri...