ORIGINAL: Big Barry
I'm using a YS 1.20 and it will swing an APC 17x6 with authority. The 1.40 will be a monster in this plane, should be fun. I got the 16.5x5W about a month ago to use on a .91 AC. I got mine through my LHS. I have not had a chance to try it out as my .91 is acting up. I am at roughly 5,000 ft and I think the prop would work fine in the 1.10. remember that the motor will unload in the air. I find it best to fly a prop instead of using static thrust. I use props that know one else thinks will work, just because it doesnt look good on paper doesnt mean it wont perform in the air. There is only one real test of a prop-bolt it up and fly it.

Big Barry, I was just reading this again and I'm thinking...when a prop is flying forward I'm certain it unloads and will pick up RPM but, when you are in a hover it seems like to me there would be no unloading and your RPM would be the same as stationary and thrust would be the same also. Is that right or am I thinking weird?
Anyways, by changing the may I was holding on to the fish scale I improved from 12lbs 2ozs to 13lbs 4ozs. And this plane sure flys fine with the YS including hover. I'm using the 16x6 prop though. For me the engine seems to get too hot with the 16.5x5W.
Anyways, any imput will be appreciated as I'm learning here.
Thanks
Barry