The question I propose is; How close to the rear of the forward spar should the back of the tank be?
I am building my wing tanks from Fiberglass. (Final Choice). But as far as size goes. Because I have the forward spar that is 8 inches tall I plan to make my tanks. 6 inches tall at the spar, 10" wide, 5" deep at the rear (for the root end). 36" long. 4 inches tall, by 10" wide by 3" deep (for the tip end). This will give me approximately 7.00 gallons each. Also will give me about 1" of foam between tank and wing skin. Will the 10" wide (front to back) be a problem with weight and balance? or should I make them longer but yet narrower? I still want to stay just above the 6 gallon volume. I hope to start working on them this Saturday while I am forced to be at work just to watch workers on site. P.S. I am building them per one of the Tony Bingelis' methods. Steve Phillabaum KR2Swide Shorter, Alabama 334-740-0066