MC wrote:

Your mistake is you you thinking you had posted anything except a series
of questions.

Oh? Let's see, did I post a bit of further explanation after Jax fell
short on tip vortex? It's in my "sent" file. Or did it go right over
your head?


... In fact, this is correct in so far as it shows that you
don't know what you are talking about -as I pointed out.

OK, in that case prove it. You explain 1- how tip vortex forms 2- your
calculations as to which represents a greater energy loss... flow
effects across the upper main from a frac jib, or combined tip vortex
from main + masthead jib.

If you can't explain it clearly, then you're bluffing. There is no third
alternative, is there?

DSK