Comment on "Efficiency: Perfect pitch UAVs and airboats lead to new propellers (at least some good from UAVs / Drones)"
...climb is around 4,5m/s with passenger and about 7m/s alone. The next factor we must to know is RPMs. If prop RPM is 3000/min or more, the blade tips exceed the speed of sound. I...Comment on "Efficiency: Perfect pitch UAVs and airboats lead to new propellers (at least some good from UAVs / Drones)"
...do have a limitation on arch diameter. Arch diameter and prop tip Mach must be managed to avoid...e props. Pitch and horsepower are related ratios. Even the design of the tip of the prop is directly relat...Comment on "Efficiency: Perfect pitch UAVs and airboats lead to new propellers (at least some good from UAVs / Drones)"
...options to play with. This is because efficiency is lost when prop tip speeds get too high and this...ower hp engines. I have seen some theoretical work stating optimum tip speed is around 0.82 Mach but...Comment on "well how many times have you heard someone say trikes hang gliders your crazy i would never fly in that.so strange ive flown aerbatics in a stearman, s ailplanes, small ga airplanes, hang gliders and trikes.but for some reasone sitting in a big airliner makes me nervous. so here is the guestion, are you more comfortable flying a trike or do you get nervous when flying in a big airliner."
...everal are very good pilots- all around. I guess it's region specific too-- I know an area in the middle of nowhere where everyone flies multiply-rebuilt contraptions (thoug...Comment on "503 rotax pukes- Engine Out over 2 years ago now"
...rating. The spot was quite tight in on the hill and blowing 15-20. On my base to final i had to do a tight 180 close to the ground and caught a wingtip let go tucked and walked away...Comment on "Man walks into Prop-- this happens, watch out (moderately graphic at 1:15)"
...years on the flight line was i had a long conversation with a pilot flying cessna 310 i turned around quickly and wack right into the point of the tip tank(nocked me cook coo.i als...Comment on "Keel-fixed versus keel free: Spectrum 144: self-sustaining yaw-roll oscillations"
...e short positive weight shift inputs that I had been taught but had also forgotten about on that tow. The glider had popped no.3 + no.4 batten tips on both sides and both no.2...