There has been some discussion of aerobatic aluminum fuel tank cracks, usually on end plates that do not have ribs rolled into them. Also mentioned is "oil canning", as a cause!
What causes oil canning, to a fuel tank? I can only think of an inability to vent? Anything else?
Also mentioned is damage from flop tube beating against the aluminum. I would "not" do the "O" ring to cushion the blow, thing. My first flop tube was 303 hose, fairly stiff. Newer hose is more flexible, so what about making the weighted pickup lighter? Better yet, a small header tank?
Your thoughts?
Jerry
PS: Do most even remember "tin" oil cans that had to be pierced with a spout? And the empty can would "crinkle" ,(oilcan) , as you squeezed it ????
What causes oil canning, to a fuel tank? I can only think of an inability to vent? Anything else?
Also mentioned is damage from flop tube beating against the aluminum. I would "not" do the "O" ring to cushion the blow, thing. My first flop tube was 303 hose, fairly stiff. Newer hose is more flexible, so what about making the weighted pickup lighter? Better yet, a small header tank?
Your thoughts?
Jerry
PS: Do most even remember "tin" oil cans that had to be pierced with a spout? And the empty can would "crinkle" ,(oilcan) , as you squeezed it ????