Comment on "Efficiency: Perfect pitch UAVs and airboats lead to new propellers (at least some good from UAVs / Drones)"
when you enter the realm of turbo fan jet engines you are using the prop to send super speeded air into...lap rate and uses enormous amounts of energy and cannot maintain it for long.but a albatrous with his long win...Comment on "Engine out landing Ventura Beach Labor day weekend Santa Paula Ca"
How long ago was that? Awesome job :)