Use when you must reduce the engine-failure ground roll demonstration runs of a transport airplane flight test to the ground minimum control speed Vmcg in the spirit of the FAR/CS 25.149 ground leg method, summary-only: build the asymmetric yawing moment from the failed engine thrust at its lateral arm, apply the nosewheel steering authority below the steering cutout speed, solve the steering-free rudder authority limited and 150 lbf pedal force limited ground speeds with the boost factor, classify runs into the steering-held, departed, at-limit and with-margin classes, and take the minimum corrected at-limit speed as the Vmcg verdict with bracket checks.
