New answers tagged piston-engine
7
First of all, any radiator thrust is limited by the amount of ram pressure which can be achieved at the radiator entry. This is just 1.4 times ambient pressure at Mach 0.8, and then very little flow speed remains (which is good, because that limits internal losses in the radiator).
Next, the heat exchanger should cause as little drag as possible. A blunt ...
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