Seeing the recent post about is your prop too long, I was wondering why there is nobody heading towards a stuka or corsair wing. Since large propellers are more efficient and the bent wing allowed the shorter gear to reach the ground and the large prop clear the ground.

Other than the problem that they look like hell going around corners.......

It could be that todays electrics can use the small prop more efficently then in the past. I just meant that electrics like rubber power have consistantly been using far larger props than the gas motor which could turn far faster.

Your right Jim. Sorry I was joking. I have noticed this too. The longer props that I've experienced with out local fliers here in south east Michigan have almost exclusively been the APC-E props. They are usually narrow at the tips and add very little to the power load as they get longer. I have been cutting shorter props out of them for a project I have in the works. The most exciting fallout of the ecl trip so far is the ability to get some good "pusher" props. The reverse rotation has a nice influence on line tension. I have a need for 10 and 11 in pusher props in the 4.5 - 6.5 pitch range. So far the only place I can find them is inside 13 in props. As far as being able to use shorter props more efficiently that's a good question. One of the strong siuts of the electric motor is that it doesn't slow down as much in corners as wet systems do. This allows them to turn the larger props with loosing airspeed.