I want to compare piston engines and turbofans on a maintenance basis. Let's say both engines are capable of 100 kN of thrust. Let's say both engines fly for 10,000 hours.
Over that time, what kind of maintenance can we expect from those engines. In particular:
How many times will the engine need major servicing?
How many man-hours does that servicing require?
About how much does it cost to do that servicing?
Major servicing for a piston engine would be something more than an oil change. For a turbofan it would be an overhaul.
Come to think of it, I don't know exactly what kind of servicing goes on for a piston engine other than an oil change. Is it like an overhaul where you dissasemble it and make sure everything fits together properly?
In case you're wondering, I'm envisioning these engines in a commercial cargo role. So no excessive dirtiness or hard throttling.