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Flying the Shuttle - Launch And Post Insertion Advanced: Difference between revisions
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Flying the Shuttle - Launch And Post Insertion Advanced (view source)
Revision as of 18:59, 1 March 2018
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Heading 90° to have the tail facing the ocean, Shuttle will then perform the famous 180° roll after clearing the Launch tower | Heading 90° to have the tail facing the ocean, Shuttle will then perform the famous 180° roll after clearing the Launch tower | ||
'''Caution: A number of users have experienced Shuttle breakups due to launching with this heading. The official documentation recommends a heading | '''Caution: A number of users have experienced Shuttle breakups due to launching with this heading. The official documentation recommends a heading of 270 ''' | ||
''I believe what happens is the following: The AP operates in stages and switches when certain milestones are reached. In particular the launch AP expects flags to clear gantry and acquire launch azimuth before pitching down and throttling thrust bucket. With your particular combination of initial orientation and launch azimuth, you're forcing it to do a full 180 degrees rotation before anything else is done - and this takes a while - too long in fact to get the throttle program done in time.'' - T. Renk, Developer | ''I believe what happens is the following: The AP operates in stages and switches when certain milestones are reached. In particular the launch AP expects flags to clear gantry and acquire launch azimuth before pitching down and throttling thrust bucket. With your particular combination of initial orientation and launch azimuth, you're forcing it to do a full 180 degrees rotation before anything else is done - and this takes a while - too long in fact to get the throttle program done in time.'' - T. Renk, Developer | ||