RE: 1/5 Top Flight P-51 Electric
I think you'll be fine on the cooling..
I'm not even going to put an exit for the air in mine.. just the air that can get in under the spinner, the holes for the intakes
I'm also going to open the holes in the exhuast stacks so they go threw to engine compartment..
I'll put some holes in the fire wall to get air over the batteries... if they get hot I can always open an exit in the rear later
I'm not so sure about the wheels yet.. I'll keep looking and think about that one still
As for the RX.. some will tell you a separte BEC is fine .. but I feel safer with two small lipos and regulated switches
just run 2 x 2s 1320 thunder powers .. hook those to a couple of regulated switches and fly all day on one charge
with less weight than one big ni-mh pack
you could run two UBEC (ultimate bec) off the flight battery .. but if the flight pack dies on you the party is over
ROn