pairoboots Posted April 24, 2005 Report Share Posted April 24, 2005 Hello! I would appreciate information from mechanics, pilots, CFIs or anyone familiar with these engines mentioned below. The Enstrom uses a Lycoming HIO 360 F1AD engine that is turbocharged and runs at 3050 RPM to produce 225 HP.The Hughes / Schweizer 300 uses the Lycoming HIO 360 D1A and runs at 3200 RPM to produce 190 HP. Both engines have TBO at 1500 hrs. The question is if used in the exact same flying situation ,which engine is more likely to make its TBO or go past it? Which engine is under more stress, or are they about equal? The Enstrom is running at lower RPM., but runs at a hotter temp because of the turbocharger. On the other hand the Hughes 300 is running at a higher RPM., but should run at a lower temp., not having hot air forced into it from a turbocharger. The Enstroms engine is supposedly beefed up to handle the turbo, what area did Lycoming beef it up? Is the Hughes 300 engine beefed up in any way for use in a helicopter? I may have a lot of information wrong, so please correct me if so. This is something I am curious about and would appreciate any information. Thanks! i Quote Link to comment Share on other sites More sharing options...
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