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OS Max 25 SF fuel System on Ringmaster

Stuka Stunt Main Forum · 1 of 1 known posts recovered

Gary Weaver · Oct 09, 2003 07:57 PM

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I changed my OS Max 25 SF fuel system and it works great. 8 minutes of fuel. 10x6 prop. Exhaust pressure port for the fuel tank. Aluminum exhaust system. I should have rounded the corners on the aluminum exhaust but I didn't have time today. I will do that tomorrow. It works great. Fuel pick up inside the fuel tank is bottom outside corner. The Sterling Ringmaster Airplane flies great and the engine never pisses a stroke. The engine never missed a stroke before either. lol. I just had to try it anyway on the new fuel tank I made from an empty acetone can. I got the fuel tank shape idea from the Japanese web sites. It looks much better than the goofy fuel tank I use to have. The old fuel tank had an air pick up tube for fuel pressure. The engine had no muffler just an open exhaust. I should have cleaned the solder flux off before I took the picture. I love to experement. The engine has a different needle valve adjustment. I flew the airplane once with the new change and at the moment I don't see any advantage to this new change. It looks really neat.

Gary Weaver