Now that is an interesting picture .....
What tack is the windward spinnacker boat on????
The spinnacker indicates a port tack ..... but the boom is on Starboard tack ........?????
The leaward boat is definately on port tack ......
Eric ..... help????
What tack is a boat on when sailing downwind "wing and wing" mode .... what is the major determining factor .... the mainsail/boom?????
Note, as leaward boat I'm just going to stay out of the way ......
Harry
It's the boom,even though that one is not gonna be there very much longer.
From the definitions in the RRS:
Tack, Starboard or Port A boat is on the tack, starboard or port, corresponding to her windward side.
And
Leeward and Windward A boat’s leeward side is the side that is or, when she is head to wind, was away from the wind. However, when sailing by the lee or directly downwind, her leeward side is the side on which her mainsail lies. The other side is her windward side. When two boats on the same tack overlap, the one on the leeward side of the other is the leeward boat. The other is the windward boat.
So technically, it's not the boom that makes the difference, it's the sail. Important only on boomless boats - like the Hobie Wave.