Hi Phil, The header tank is not required for balance. You can adjust the C of G = by altering the engine mount length. This is quite easy if you are = making your own engine mount or are up to modifying it. When changing = engines I did exactly that and got to within 3mm of my desired result.
You can always call me on 07 4095 3956 to discuss in deapth if you like. regards Barry Kruyssen Cairns, Australia RAA 19-3873=20 k...@bigpond.com http://www.users.bigpond.com/kr2/kr2.htm=20 ----- Original Message -----=20 From: phillip matheson=20 I have a KR2, Can I NOT use the header Tank. Some are telling me I = MUST have=20 a header tank to help with the balance. My wing tanks are from the back of the main outter spar aft 13 inches = and 45=20 inches outwards. these hold 45 litures.( 11 US Gals) The rear C/G limit is about 4 = inches=20 behind the main spar , per plans) less the last 2 inches . Comments Please on NOT having a header Tamk and possible balance = problems. ( engine will be 95kgs) and can move forward OK.
