Hi, I know this thread hasn't had any activity for a while, but I'm hoping someone can answer my questions. Lots of questions.

I just picked up a Kyosho PBY and it looks like a great plane, I can't wait to try it, but I don't know anything about its setup. The previous owner had purchased it used several years ago and had never flown it either and couldn't help. All I know is it has 4 large Futaba servos, it's powered by two Turnigy G15 950 KV motors with 3 blade 9070 Master Airscrew props and has unbranded ESCs. The motors can pull up to 42 amps so I hope they're at least 60 amp.

It is quite heavy. I don't know how much it weighs, but is this a good setup for such a large craft?

It's set up to use 2 batteries, one for each motor. Will two 3S 2200 mah lipos be enough power? Should I a use larger amp single 3S or even 4S, whichever would be a better weight and power? Also, it looks like each ESC is powering the receiver through a Y cable. I was able to test each motor by plugging its ESC into the throttle channel separately. Is this OK or should I remove one power wire?

Is there any way to easily lighten the plane? Can I change the servos to lighter ones instead of the old Futaba ones? They still work fine, they're just heavy. Will it really matter?

Most importantly, where is the CG so I can balance the plane?

Any other tips or suggestions that would help me are welcome.

Lastly, does anyone have the manual, assembly instructions or whatever came with the model? That would be a big help if I ever have to do repairs.

Thanks,
Bruce