On Apr 25, 10:48*am, Stefan wrote:
WingFlaps schrieb:

Try reading the statement again, here it is:

"Now we add in the energy losses from having to accelerate with the
wind and to glide speed."

Now perhaps you would like to revise some physics and try to critcise
it for us?

It's the "having to accelerate with the wind" part which is complete BS
unless I completely misunderstand what you are trying to say.

The latter I think. The imposed accelerations associated with the
change in direction (from upwind to downwind) require control inputs
that add drag and increased energy loss (from drag).

To summarise your missed point, the pilot control inputs cost energy
that is not factored into simple glide/time analysis.

Cheers