RE: Giant Big Stick and BCMA SPE 40 Build
I have 8 flights on the Sig now. Just finished it up about three weeks ago. Weight as I have it set-up is 12# 8oz, and the SPE40 is putting out 18 1/2#, on a ProZinger 20X8. Plan to go to a Xoar 21X8, should put it just over 20#. As set-up it balanced at 30% MAC, with no added weight, and handles great at that CG. On low rate it handles very crisp but not snappy. I have not tried high rate, being my first plane after a trainer, but my buddy has and says it's right there, right now. Right now it will hover at a little less than 2/3 throttle, but the new prop should cut that down to half. I used S9252 servos for ailerons and elevators, a S9151 for rudder, and S3151 on throttle and ignition switch. (ignition can be switched manually or with the TX)
If you have any other questions please feel free to ask.
Bob