Manual wing sweep? in Thirdwire: Strike Fighters 1 Series - General Discussion Posted September 21, 2008 · Report reply Okay. I'm able to trigger the wing sweep animation on the MiG-27D, but haven't yet puzzled out how to do it in steps. But, if I'm reading what you're saying right, it doesn't really matter, FM-wise, as the degree of sweep isn't aerodynamically modeled. So, either live with the pilot workload-simulating task of manually sweeping the wings at certain speeds (which doesn't actually affect anything other than visually) or live with automatic mach number actuation of the sweep (which the MiG-27D doesn't actually have in real life). Thanks again for the resonses!