tackline

The heel of the yard fits immediately about the gaff and is kept in place by a tackline called a timminoggy.

And something usually went wrong--the tackline missed out, two J's put on by mistake, or an M instead of a J.

"AJP tackline J," the Skipper would roar; and two of the signallers would fall over each other in a hurried attempt to get it all tied together.

While a symmetric spinnaker is flown with a "guy" and a "sheet", an asymmetric spinnaker is flown with a tackline and a "sheet."