Pilot Magazine | Mar 01, 2001
Twenty percent of partial power failures or power losses are the result of bad internal exhaust baffles What part on your airplane isn't likely to be a prime topic of hangar flying sessions, must be leak-checked during each annual inspection, was at the center of a controversy that resulted in new procedures for implementing airworthiness directives, and glows red-hot during cruise power operations? If your answer is the airplane's exhaust system, go to the front of the takeoff line. 321 stainless steel and Inconel Although there are still some mild steel exhaust systems used on a few homebuilt airplanes, 321 stainless steel — a chromium-nickel steel — is used for almost all of today's general aviation exhaust systems.
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