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[40th SOC] Vapor

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  1. Also, when the manual says "don't exceed 5.2 G with full lateral stick deflection," that does NOT mean you are free to yank 3/4 aileron deflection at 7.33 G. The total load factor is a vector sum of the loads affecting the aircraft, and the ultimate load limit is not static; the airframe is better at handling some load combinations than others. Yes, you CAN enter some amount of roll at above the roll entry limit, but it's a sliding scale that will also be non-uniform. The manual gives you a number that has been tested to work under a specific set of conditions: constant aft stick, full lateral aileron, at 5.2G with 2,200+ lbs of fuel, or 5.4 G with less than 2,000 lbs of fuel. If you do that, but pull harder mid-roll, you exceed the total load limit. If you add rudder mid-roll, you exceed the load limit. If you do it abruptly even if only at 5G, you exceed the load limit (hence the AFTO entry). At 7.33G, you have NO available roll. You are already maxing the jet out symmetrically. If you add an asymmetric component to that, some parts of the aircraft will exceed the load limit. Below 6.5G (or 7.33G if you have less than 2,200 lbs of fuel), you MIGHT have some amount of available roll, but that's not guaranteed. Asymmetric roll loads are complicated and their effects on the airframe are not uniform. All that you know for sure is the endpoints of the curve, because that's what they tested for the manual: at 5.2G you (just barely) have full roll input available, and that at 6.5G you have zero roll input available. Inducing roll at beyond 5.2 G is in the untested grey area: you know that you have less than full roll available, and probably that the farther above 5.2G you are, the less you have, but you do not know how much less. Nothing is guaranteed above 5.2G.
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