RE: BRIO Electric 10-size
Nathan,
I have maybe 20 flights on my Brio with the a123's. The 3 cell a123 seems to be a good match for this motor. I am using a 11x7 APC sport prop on the plane, i'm pulling around 34 amps static with 36 oz of measured thrust. I have tried a few different props and the 11x7 seem to be the best so far. An APC 12x6E was pulling 36 amps static and 40 oz thrust. I tried an APC 11x10 pattern also and it drew just under 40 amps but I did not notice any gain in the air speed of the plane.
One thing I'm changing on the plane is the wheel size. Going with the 3 in. mpi maxx wheels. I have my CC35 set to a 6.6 volt LVC. When you use up the charge on these a123's the charge falls off a cliff. I had to dead stick the plane and land on the grass at the field I fly at, and the 1 3/4 in. wheels I was using did not get the job done.
Anyways, I'm happy with how the plane flies. I'm getting 7 minute flight times and the 15 minute charge time on the a123 is great.