I need to find out what size fuel tank to put in I tried a 4oz. GP and it will not fit this is what tower suggested. I'm running a .30 four stroke so i would like to have 4oz. at least don't think I would get much time on a 2oz. tank. Someone must have went though this problem also. Thanks for the help!

Its a Lazy Bee special with 50" wing.

I have an OS FS20 in mine fed by a 3oz Sullivan slant tank. flight time is about 7 min full throttle.

Where did you find a 3oz. all I can find is 4oz. or 2oz.? please let me know, also is it a flex tank? Thanks for your response.

The Sullivan 3 oz is indeed a flex tank. Sullivan product number S734.

Thanks for all your help SPORT FLYER I really apreicate it been scratching my head trying to figure this out.

Thanks again. TWOSTROKE

I used a 4 oz. Sullivan tank, can't remember if I used the round or cylindrical shape. The cylindrical is slightly smaller in diameter, and longer. I just had to cut out a bit of the instrument panel to allow the tank to protrude into the cabin. I mounted an HS-55 for the throttle to the right side of the fuse just behind the tank and wedged a piece of foam in between the back of the tank and the servo mount to keep it from sliding back. Worked out great. If ya want, I can zap off a pic and post it.

Wh00ps!

I managed to squeeze in a 4oz great plane after modifying the instrument panel, I had to move the firewall up to fit the engine mount I'm going to be using so it fits pretty good. But thanks for all the help

A little late, but I found the picture I was gonna post with that message last night...

Whoops what did you coat yours with?