Hi.

I can't head over this year. We have just to much going on right now at work. I will probably head down to Herndon, VA later on this week to relieve the guys that are down there now. This will probably go on for the next month or so, then we head down to Florida to continue with actual flight tests. T'is a busy time for us right now.. goes in dribs and drabs.. busy then nothing, then busy... and on and on.

Meanwhile, I have a 16-8 APC on my OS 1.20 AX and it turns at about 9,000 RPM or so and does well. I also have a 15-10 for that engine which also does great..

For that 180 4S, though, I would imagine a larger diameter.. perhaps on the 18" size.. pitch.. well, that torque generator should be able to handle at least an 8 pitch.

CGr.