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R15 EXPLAINED

• définitions :
  - room : the space a boat needs in the existing conditions while maneuvering promptly in a seamanlike way

• explanations :
  If a boat changes course and becomes right-of-way, she must first leave the other boat room to stay clear –i.e., a chance for the other boat to react to the new situation.
  It is enough to give room (space) for the other boat to stay clear, there is no notion of time involved in rule 15.
  Note that the other boat does not have to react until the right-of-way boat has actually gained right of way (there is no obligation for anyone to “guess” what the other boat is doing and try and anticipate whether privileges may shift from one boat to the other because of the other boat actions).

If a boat gains right-of-way without doing anything, e.g., the other boat’s actions grant her privileges, then this boat is not bound by rule 15.
While there is no time element explicitly included in the rule, “initially” is usually understood as a matter of few seconds only.

Here are a few examples in which Yellow is constrained by rule 15:

• Yellow acquires right-of-way under rule 12 :

• Yellow acquires right-of-way under rule 10 :

• Yellow acquires right-of-way under rule 11 :

 

For Yellow to be penalized under rule 15, it must be established that Blue was not given an opportunity to “avoid’ Yellow while she was establishing her right of way.  Note that rule 15 is only applied for a brief period (usually a few seconds) after Yellow becomes right-of-way.

 tactical aspects of the rule :
As explained above, rule 15 only explicitly mentions room.  It is your responsibility to maneuver far enough from the other boat to give her this room to react to the new situation.

implementation in vsk3 :
R15 is by and large well managed in VSK3 –if not a little sensitive.  It is usually a good idea to note whether your ISAF panel mentions 15 after you have established privileges against another boat.  While 15 is present in the panel, it means the game thinks you still owe room.
 

bye rafat - translation bye amic.