Originally Posted by daddle
track plot is real. Honest. It is affected a little by my tacking on shifts if allowed by the shoals.
Out of curiosity, I imported the track into a cad program and measured the angles.
Tack #1 is 80 degrees,
Tack #2 is 79 degrees
Tack #3 is 78 Degrees
Still extremely good, but a bit more understandable than 70 degrees. (BS=7, TWA=40, TWS=10, AWA=24, AWS=16 works out correctly).
There is something funny
about tack #1, as you seem to have sailed directly into the wind
for quite some distance, rather than making a crisp tack as you did in #2 & #3.
You did nicely tack on small shifts in tack 1 and 2.
If this is a SC50 then I'm not sure what it has to do with "how high a cat will point". The max vmg angle for almost all cat would be much broader than this