Quote:
Originally Posted by Bicycle Bob
In heat engines, efficiency is totally dependent on temperature difference. That's why jet engines use such expensive high-temperature materials, and diesels still beat them by letting ordinary metal cool off between thermal peaks.
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Not to mention jets, turboprops/turbofans and turboshafts usually fitted to helicopters and stationary powerplants are more prone to FOD than a Diesel. Too bad there is no Diesel with enough power-density to power modern commercial aircraft...