DSK wrote:

Here's a tricky one... if a vessel is sailing along close
hauled, and the wind shifts 90 degrees, forcing her sails across
while the vessel continues on a straight course, has she
'tacked'?

Not in the sense that the crew have carried out the action of tacking -
everything could be lashed and there might be nobody on board. For colregs
purposes, she is on a different tack, however...


--
Wally
www.makearatherlonglinkthattakesyounowhere.com
Things are always clearer in the cold, post-upload light.