Hey, here's a question. I was reading Sutton the other day and they were
talking about the thermal stresses that Rocket engines face i.e.
positive few hundred C on inside, versus -193 if you regen cool, and
apparently the throat often shrinks by 0.25% or so and cracks up a bit
each time she lights. Anyway, I was wondering whether ERPS nozzles have
an easier time, with the inside and outside at much the same
temperature. So do you get much cracking or other progressive damage
everytime you light up?
--
-Ian
"If you want to build a ship, don't drum up the workers to gather wood,
divide the work, and give orders. Instead, teach them to yearn for the
vast and endless sea." -Antoine de Saint-Exupery
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