RE: seagull yak54 90 to electric
I tried this plane with a 26cc gas engine..............It came in at 10lbs with Hitec 645 servos. Probably a larger AXI,Hacker or similar. I think it will be great as an electric with 6-7s 6000mAh pack. By the way, my Brillelli 26cc engine weighed 3lbs with ignition............Hope this helps in some way.