ORIGINAL: Black Drape
Question,
Why are your Gee Bees coming out tail heavy? Mine has an OS120Fs in it and I had to mount the battery on the top of the stab to get it to balance. I am still running my engine very rich, only 4 tanks of fuel through it and it has plenty of power to fly this plane. I did not have any problem with tip stalling, the plane seems to fly great, do avoid cross winds.
Ron
Those who are trying to mount lighter 90 size engines will need to lighten the tail of the GB to get it to balance properly. Stock built, the GP GB needs an engine that weighs about 2# to balance it without modifications. If I remember the OS 120fs weighs in at around 2#s. My GB with a Saito 180 that weighs about 2# balances with the battery just aft of the wing. There should be no problems with tip stalling if the C.G. and elevator throws are set as per the instructions.