At 08:10 AM 1/14/2011, you wrote: >I am using a single aluminum header tank for simplicity reasons. The >tank holds 21 gallons and is very stout. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
That is 125 pounds of fuel and will make considerable changes in the C.G. from full to empty. Make sure you accurately calculate the C.G.range for safe flight. It will shift aft considerably during flight. Larry Flesner
