JP Prangster plane: can I use a .61 engine?
Hello all,
I am new to RC planes, and hope to get some start-up help from you. I recently bought a second-hand JP Prangster kit, which is an EPP foam trainer. Together with it, I got most of the things I need to build it and get it in the air, I think. This includes a used SC .61 glow engine. In the Prangster instruction manual, it says "we suggest that beginners use a .25 or .32 cu. ins. engine. The more experienced pilot can fit larger engines up to .40 cu. ins. for fully acrobatic performance...", and "up to .53 cu. ins. can be used by expert flyers". This makes me a bit uncertain about my .61 engine. What will happen if I try to use this engine? Will I be able to fly if I balance the plane with some metal in the tail-part to get the proper centre of gravity, and don't use full throttle range, or is this a bad idea? This is my first plane, and I have no experience with flying RC planes.
Also, it seems that channel 2 on the receiver, which is for the elevator, provides the servo with less power than for instance the rudder channel. The servo does not turn as much as the others. I have tried switching servos, and so eliminated the possibility of the problem being the servo itself. The channel 2 servo also vibrates a little when I push the rudder stick on the transmitter. Do you have any suggestions to this problem, other than buying a new receiver?
Thank you in advance.