Ok, so I cam across this website (
Index [See How It Flies]) and it mentions Vz as the minimum speed of level flight, I don't think I've came across this before and if I have I don't remember.
So can any one here confirm for me whether this is correct or not as google does not seem to be helping me?
And it would be useful for me to point when pointing out that Vs is not the minimum level flight speed.