Page 72 - Call Book for Team Racing 2017-2020

TR CALL G3

Rule 17 On the Same Tack; Proper Course
Definitions Leeward and Windward
Definitions Overlap
Definitions Tack, Starboard or Port

Question 1
B and Y are overlapped on starboard tack on a very broad reach. Y is subject to
rule 17. Without changing course, Y gybes, allowing her boom to go right across
and her sail to fill on the new tack. She then immediately gybes back and luffs
B. B responds to the luff and protests. What should the call be?

QUESTION 1 QUESTION 2
Y1
Y1
B1 B1

B2 B2 Y2
Y2

B3 B3
Y3
Y3

Answer 1
No penalty.
Because Y’s sail fills in a running position after the gybe, she is sailing by the
lee, and has therefore changed tack and rule 17 ceases to apply. When she gybes
back onto starboard tack, rule 17 does not apply.

Question 2
The circumstances are the same except that Y’s first 'gybe' is performed by
pulling the boom just across the centre-line, flicking the boom so the sail fills on
the new side, and then immediately pushing the boom back to the previous side.
Y then luffs, B responds and protests. What should the call be?

Answer 2
Penalize Y.
Y is never sailing by the lee. Therefore her windward side determines the tack
she is on. Because this does not change, she remains on starboard tack
throughout the manoeuvre and therefore breaks rule 17 when she luffs.

Section G - The Run