The navigator© wrote:

All other things being constant, lift and drag rise in proportion mister
sail expert.

For the airfoil, yes. The drag on everything rises exponentially with no commensurate
increase in lift. This is why, in high winds, boats are sometimes difficult to get through
stays tacking.



.... You don't fool me mister.

Why would I try to fool a fool?

... Try doing
some reading before you pass on your "advice" to others.

So your expertise is based on reading only? And not much of that, judging by your
statements.


The navigator© wrote:

Nah, I'm waiting for your cheque Doug -are you going to pay me?

You are the one who owes me, remember? It would be a shame if you had to sell your boat,
though. However the debt will stay on the ledger.

DSK