RE: 6v or 4.8v reciever battery?
I'm not sure about the 2.4, I have so many hardly used FMradios that are in great shape. I've got an JR 8103 with little use, so probably no in the near future for 2.4.
Its the Giant P-51. I'm running higher-torque servos for flaps, ailerons, elevator, and rudder. The gear, throttle, choke, tailgear steering are all standard.
I'm looking at lots of flying time on one charge. At least 3 (maybe 4) everytime I go to the field with it fully charged.
Jason