VMC and bank angle/turns

[RichPa]

Right, the initial question was about Vmca especially regarding light twins, however, any advice on the issue regarding jets or quads or wahtever is appreciated.

There's a very detailed study of engine-out flying, here, which might be useful:
Multi-Engine Flying [Ch. 17 of See How It Flies]

Read it almost entirely, but can't figure it out at all.