Booby swears this is a turn to starboard:

http://members.aol.com/bobsprit/images/sailsuz21.jpg

Yup, look at the wave action (wake confuses you!) on the starboard side). It
shows this quite clearly. A turn to port would put the sun astern, ruining it.
The aft wake shows a gradual push upwind, but here's altered for the pic.
Even when it's explained he can't fathom it! But he knows how sails "behave!"

RB