I am just about to assembly my Super Stearman. As the manual suggest, I plan to mount my engine (saito 120) inverted. I think the tankposition is very high for an inverted engine. If I follow the manual, will I get into trouble with engine performance like unreliable idle or lean/fat running when flying inverted?

Would you recommend me to alter the tankposition? If so, how is it best done?

Any comments from you guy´s that have flown the Stearman are very appreciated!

Stefan

Mount the engine either sideways or right side up and tank position is not a problem.

My OS 120 fit inside the cowl just fine upright. The Saito may be a little taller.

I have a magnum 120 on mine, I have the same problem, if I put the fuel line next to the carb on the inverted engine all the fuel runs out of the tank. I cant turn the engine because I already made the cowl fit, I'm thinking of lowering the tank but that doesn't look easy to do. Great planes told me the center of the tank should be even with the carb. How do I fix it with out doing to much to plane or engine