On 14 Oct, 15:28, (Steve Firth) wrote:

If one is motoring in a calm on a flat millpond then there is an
apparent wind equal to the speed of the boat from dead ahead.

Yet you've just twice denied that to be the case:

"Nor in the case of the motorsailer will the apparent wind be from
dead
ahead."

"they're right and you don't understand physics. "

If you must troll pick a consistent line of argument.