john_tullamarine
I am not for one minute suggesting that pilots experiment with Vmc. To the contrary, what was said is that there isn’t enough information in the Pilot’s Operating Handbook to work Vmc out and that Vmc and Vmca should be treated as the same and not experimented with. I think what the whole point is here, is that once you are below the committal height on one engine you aren’t limited to Vmca (in case of missed approach) if the field limiting.
As to the text I used when making these notes about 10 years ago, I think it was Aerodynamics For Naval Aviators, Advanced Pilots Flight Manual and also an Australian instructing publication of which I can’t remember the name.