Mike Taglieri wrote: >>I know turbos on cars are used to increase performance, but I thought a turbo on a plane is used only to maintain sea-level performance at higher altitudes. If so, I don't see why they should cause any greater stress on the engine than running at the same throttle down near the ground.<<
The amount of performance that turbos contribute to overall power output depends on how much pressure the turbo is set to deliver, or more specifically, the size of the turbo and what the blowoff/bypass valve is set to. It can be set to atmospheric pressure, which is called "normalization" and is what you speak of, but it can be turned up to deliver more performance than normally available, which could continue to 20,000' if the turbo was sized for it and the wastegate would allow it.... Mark Langford ML at N56ML.com website at http://www.N56ML.com --------------------------------------------------------
