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Space Shuttle: Difference between revisions
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→Ascent structural and aerodynamical limits
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This is a structural limit for the orbiter and mated stack, in actual operations the orbiter should be kept below 650 lb/sqf. | This is a structural limit for the orbiter and mated stack, in actual operations the orbiter should be kept below 650 lb/sqf. | ||
* Wing bending moment CBW between -0.019 and 0.019 (modeled) | * Wing bending moment coefficient CBW between -0.019 and 0.019 at max. qbar (modeled) | ||
At max qbar, the wing bending moment is a function of Mach number and AoA. Since Mach number is close to 1.4 in this phase of the flight, this limit basically translates into alpha between -8 degrees and 2 degrees. This can only be achieved if the orbiter is in inverted flight. | At max qbar, the wing bending moment is a function of Mach number and AoA. Since Mach number is close to 1.4 in this phase of the flight, this limit basically translates into alpha between -8 degrees and 2 degrees. This can only be achieved if the orbiter is in inverted flight. | ||