groundfloor, to reinforce the replies by
J T and
O S.
Vmcg is primarily concerned with ‘Go’. The flight test interest is in recognizing and controlling the asymmetric condition.
Inability to control the aircraft’s deviation within limits defines the ‘Stop’ boundary; reaction times are only considered in this situation.
Re Vmcg testing – see
AC25-7A Flight test guide for certification of transport category airplanes. AC25-7A Chapt 2, para 23, circa page count 115/118
For the ‘Stop’ aspects see page 44 onwards, and Appx 2 ‘Historical development of accelerate-stop time delays’, circa page 406.
For Vmcg and accelerate / stop, see
CS 25 Large Aircraft, Amendment 4, CS 25.149 (page 27) and AMC CS25.149 (page 267). Also CS25.107 and AMC CS25.101 – 107 page 243 - (fig 1 accel/stop time delays).