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> It costs >$100k (potentially much more) per overhaul of a turbine engine

Aircraft certified piston engines will reach that cost in overhauls much quicker than a turbine




That is just not true. You can google the cost of overhauling a Cessna engine, it's nowhere near 100k.


But you need to overhaul it way more frequently, and buy replacement parts, and consumables regularly.




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