The Racing Rules of Sailing

What is Tacking?

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John Ball
Nationality: Canada
There have been several topics where tacking is involved, and one comment was that there used to be a definition for tacking, but it was removed some RRS cycles ago. Tacking comes up in several rules, R 13, R 18.3, R 20, R 44. As tacking is no longer defined, we may use a common understanding of the term. So my question is can tacking have a different meaning or scope when used in different rules. 

Based on the definition of “TACK, STARBOARD or PORT” and “LEEWARD and WINDWARD” in the RRS. A boat is on a tack based on its windward side – so can we say that a boat has tacked when her windward side changes (after passing HTW), or does a tack require achieving a close-hauled course, as covered in R 13 Tacking? While R 13 is titled WHILE TACKING, the word tack does not appear in the text, passing HTW is used. When running, a boat changes gybe (tack) as soon as the boom has crossed the centreline, so it is effectively almost instantaneous. May the same be said when a boat passes HTW – its windward side has changed, so in that instant, it has tacked?

Example 1. Under R 20, a boat hails for room to tack, and the windward boat hails back “you tack” under 20.2(c) which requires that hailing boat be given room to tack and avoid – where room is defined, and this brings in seamanlike, so the room would be to achieve a close-hauled course, and then bear away to duck,  or be able to tack back. See cases 35 and 101.

Example 2. A boat touches a finish mark while finishing, breaking R 31 hand has to take an R 44 penalty of a tack and a gybe (any order) before recrossing the finish line from the course side. In this diagram, the boat bears away, gybes, rounds up and passes HTW before crossing the finish line again. Has the boat completed her penalty before finishing?

John
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Created: Yesterday 02:45

Comments

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Wayne Balsiger
Nationality: United States
Certifications:
  • Regional Judge
John, you found the definition in RRS 13 While Tacking.  The rule defines when a tack starts (passing HTW) and when a tack is completed (close-hauled course). Between those two a boat is tacking and does not have right of way. She has changed from port to starboard or starboard to port, as per the definition, but has not regained rights of a boat that has completed her tack.  

In example 2 at position 7 she has not completed her tack before crossing the finish line so she has not executed 44.2. The intent is the penalty is completed before she finishes. I don't believe she has completed her penalty before finishing.

In example 1, I am not fully understanding your description. The hailing boat: "she is sailing close-hauled or above.  When the response is "You Tack" the hailing boat shall tack as soon as possible.  The hailed boat may have to alter course to allow the hailing boat room to tack.  They have told the hailing boat that there is room to tack.
 
Created: Yesterday 05:21
Last year there was a thread that discussed the meaning of tacking:
https://www.racingrulesofsailing.org/posts/3822-def-tacking-to-tack
Rob Overton quoted the definition I learned at sailing school before reading any of the racing rules of sailing.  Essentially, head up, cross head to wind and bear off to close hauled.  After reading the rules I became a bit confused.  The introduction to the rules now say that if a word is not defined we should use the definition “ordinarily understood in nautical or general use”.

I’m not sure racers with their constant analysis of rules, are in a position to give an ordinarily understood nautical term.  I’m thinking it might be better to ask some cruising sailors.
Created: Yesterday 06:07
P
Michael Butterfield
Certifications:
  • International Judge
  • International Umpire
  • International Race Officer
I went to a merchant navy school, tacking was going past head to wind.

Going down to closehauledhad nothing to do with it 

The rules chose to make you give way till closehaulled after tacking, by a aeparate rule.

To me you have room to just tack 

You have completed your penalty.

Created: Yesterday 07:37
‘You have completed your penalty’ - not according to MR Call N6 as per Gordon’s comment.
Created: Yesterday 11:58
‘You have completed your penalty’ - not according to MR Call N6 as per Gordon’s comment.
Created: Yesterday 11:58
‘You have completed your penalty’ - not according to MR Call N6 as per Gordon’s comment.
Created: Yesterday 11:59
‘You have completed your penalty’ - not according to MR Call N6 as per Gordon’s comment.
Created: Yesterday 11:59
I refrained from commenting last year because it was all a bit too close to a Match Racing call against me from a poster here who holds the ‘tacking is instaneous’ view.

For me the absence of a definition is irrelevant - it is a question of construction.  If tacking happens instantaneously when you pass head to wind then there is no need for the last clause of Rule 13 or of 20.2 c after ‘you tack’.

And Rule 13 would be headed ‘while bearing away after a tack’!
Created: Yesterday 08:18
P
Michael Butterfield
Certifications:
  • International Judge
  • International Umpire
  • International Race Officer
I disagree rrs 13 extends the obligation to closehaulled because otherwise tacking is instantaneous. 

I see no rules difficilties on this, keeping a tacking boat as give way is a safety matter, this is mirrored on match racing with the completion of the gybe.

The problem is some of those writing the rules are not natural english speakers, so do not see the "usual meaning of an english term".  They make rules on flawed interpretations, and the rules get fuzzy and hard to defend. 

I use the word "gybe" which is definative for me. 
I am told i cannot use this, as it is english english not european english. I have my decisions edited. 

Sailing below 90 degrees to the wind, let alone comments on the change of tack ( which is a gybe) 
 
Created: Yesterday 10:30
Gordon Davies
Nationality: Ireland
Certifications:
  • International Judge
With all due respect to Wayne, RRS 13 does not define tacking. Indeed the rule is very careful to avoid using the word tack in any form. What RRS 13 does do is define when a boat that has passed head to wind (thus changing tack) must keep clear of other boats.

Our match racing colleagues have written a definition of tacking in MR Call N6.
For the purpose of taking a penalty, tacking is to change course from close-hauled on one tack, through head to wind, to close-hauled on the other.
This appears to be an (yet another?) attempt to introduce a new rule or definition without having to pass through the long process required to change the rule book.
Disappointingly, the call then goes on to apply  in a way that has no need of this defintion. In the incident, Yellow passes head to wind and does not then bear away, but passes head to wind in the opposite direction, before bearing away.
The call would be exactly the same without the superfluous first sentence. According to RRS C7.2(a)(2) Yellow must pass head to wind and then bear away as soon as reasonably possible . She does not bear away as soon as reasonably possible but instead reverses her change of direction, passes back on to starboard and only then bears away.
So in the only instance I have found in an authoritative  text approved by WS that defines tacking, the definition is irrelevant to the call. 
Created: Yesterday 10:49
Craig Priniski
Nationality: United States
Certifications:
  • Coach Level 3
  • Club Race Officer
In common sailing tacking is passing head to wind to sail on the opposite board. It's a process. Rule 13 narrows it to permit luffing vs tacking since luffing another boat may be tactically wise in racing. I think it's a stretch to narrow it even further to only at the point of crossing head to wind, until you are sailing on the other board you haven't actually completed a tack. For the purposes of racing again we narrow it to being on a close-hauled course even if you sails aren't trimmed. Rule 13 serves not to define "tacking" but to narrow the racing definition to only the portion after head to wind. For this example, I don't know that anyone would call out the incomplete tack, but technically it is not complete (The penalty includes a tack and a jibe, not a luff past head to wind and back on your original tack.)
Created: Yesterday 11:51
@mike butterfield:

‘You have completed your penalty’ - not according to MR Call N6 as per Gordon’s comment.
Created: Yesterday 12:00
Gordon Davies
Nationality: Ireland
Certifications:
  • International Judge
Matt,
The penalty in match racing is not a One or Two Turn penalty (see RRS C7.2).
The point of my comment on MR Call N6 is that the attempt to define a tack was irrelevant to deciding whether Yellow had taken her penalty correctly. RRS C7.2 requires a boat to pass head to wind and then bear away at the first reasonable opportunity to a course that is more than 90° to the wind.  Reaching a close-hauled course is incidental, and has no relevance for the penalty.
Created: Yesterday 14:55
P
Michael Butterfield
Certifications:
  • International Judge
  • International Umpire
  • International Race Officer
I have not seen gordons comment, but match racing for the sport defines when penalties end. This has nothing to do with a normal definition, or they would not have to specify.
Created: Yesterday 12:44
I would agree with Gordon that RRS13 does not define "tacking".  "Tacking" is used in the titles for both RRS13 and RR18.3  and  each rule appears to place a different meaning on the term "tacking".
The MR Call Book "is authoritative for umpired match racing only", meaning it is not authoritative for other disciplines.

From Miriam Webster :
noun (1)
c: a change when close-hauled from the starboard to the port tack or vice versa

a: to tack a sailing ship
b of a ship: to change to an opposite tack by turning the bow to the wind

transitive verb
4: to change the direction of (a sailing ship) when sailing close-hauled by turning the bow to the wind and shifting the sails so as to fall off on the other side at about the same angle as before

To answer John's question, (" can tacking have a different meaning or scope when used in different rules"),  we would have to decide whether the rule uses the term as a noun, intransitive verb or transitive verb.

I believe RRS20 uses tack as a verb.  A boat hails for room to do something.
RRS44 uses tack as a noun.  the rule names a tack and gybe.
Created: Yesterday 16:13
Gordon Davies
Nationality: Ireland
Certifications:
  • International Judge
As an English speaker I alwats excerise  degree of wariness when anyone refers to the work of Mr. Webster...

The relevant Collins Dictionary nautical definitions are:
 to change the heading of (a sailing vessel) to the opposite tack 
to steer (a sailing vessel) on alternate tacks
(intransitive)  (of a sailing vessel) to proceed on a different tack or to alternate tacks.
Not to mention:
a course sailed by a sailing vessel with the wind blowing from forward of the beam
one such course or a zigzag pattern of such courses
a sheet for controlling the weather clew of a course 
the weather clew itself
the forward lower clew of a fore-and-aft sail


Under RRS Definitions: a boat changes from port to starboard tack at the moment she passes head to wind.

I think one issue is that nautical parlance has changed. When I first started getting shouted at by irate helmsman the proper terminology was 'to go about'. The crew was warned by the helm by a cry of 'ready about', followed by 'lee oh'.  The boat would to avoid the current then change tack. This might happen frequently, for instance when tacking along the shore. 

Tack has far too many meanings to be of any  use as a clearly defined word in the rules. 
Created: Yesterday 17:02
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