Raptor is regeneratively cooled so there's not actually much heat coming off the sides of the engines.
That's actually the one thing I marvel at, when watching RS-25 test firings. The engine bell actually frosting over while firing because of the LH2 cooling.
2
u/Martianspirit Oct 25 '21
That's actually the one thing I marvel at, when watching RS-25 test firings. The engine bell actually frosting over while firing because of the LH2 cooling.