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bigboilerdawg t1_j22m6nt wrote

Reply to comment by the_fungible_man in Apollo role manoeuvre by Oncey1234

So the roll angle varies depending on the time of the launch? I never knew that.

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the_fungible_man t1_j22o51w wrote

It's the flight azimuth that changes as the Earth rotates during the launch window. The rocket rolls to align itself to its flight azimuth so its flight path then becomes a simple pitch program.

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