What would be a good tank size for the YS 1.10 and 1.20. Thanks, Don

It would depend on the plane and how much room you'd have. I have a Venus II with a Y.S. 110S for power and fly it with an 18 ounce tank. But after 12 mins of flying i still have more than half a tank left.

Thanks Cris, Sounds like that size might work also for the 1.20. Don