RE: I want a Big plane for a Moki 250
The 3W Bearcat is a nice match for the Moki 250.
Lots of postings about mine here on RCU over the years. Only bummer is you'll have to use straight (non-scale) gear. Darrell at Sierra has a set that uses some stock mechanics with a sorta-scale strut. Works perfectly, but is not articulating like it should be.
The only supplier that I know if with articulating gear for this 1/4 scale B'Cat is CJ, and I had a set .. they are not well designed and were not reliable for me. Otherwise a great flying airplane.
Dave McQueeney