I've had a O.S. 45 FSR with a 12 /4 prop (hovered at 3/4 throttle), a TT46 with a 12.25 X 3.75, (better) and just tried a YS 53 with a 13/4 on it. Put -75 expo. in the throttle. The YS 53 is just PERFECT! You couldn't talk me out of it. It hovers at 1/3 throttle with 4 clicks of adjustment to hover with. It lands as light as any magic I've seen.

I put steerable tail wheel on it by putting on a Kelt style wheel assembly and extentending the arms (up) to the same height as the fuse (you will have to bend a new axle assembly to make it longer for the arms to mount to) and then I ran fishing line from the servo arms thru the fuse and then to the tail arms. as a pull pull system works great!

Without a doubt my favorite airplane. It feels like the cap 232 2X on Real Flight.