First, change the lifting tackle so that you can
lift the
tender TIGHT against the davits--you may have to play with the attachment points. Unless it is up tight, I doubt there is any sure solution.
Our tricing lines are spare
dock lines, run from the davit
cleats (very large), to tip of the davits (beyond the bocks), under the
boat cris-cross, and back up to the
cleats. I can't imagine dropping the
tender, as we can disconect the lifting tackle and still stays in place. The tender can go flat and it still stays there.
Takes only a minute to do or un-do. I have no need for ratchets, as there is only so much tension I wish to put on an
inflatable tube, and I can easily get that with 2 firm snaps of the line while pulling on the cleat; perhaps it is a difference in geometry. This also requires no additional
gear, since you won't need the docklines and tricing at the same time.
Sail Delmarva: All Triced-Up