@Amgine @sailing I've found an ebay listing that looks like a similar concept: https://www.ebay.ca/itm/236334628939?%5C_skw=catalina+boom+vang&itmmeta=01K6CEX6XYF23CQDKVANXGTQS1&itmprp=enc%3AAQAKAAAA0FkggFvd1GGDu0w3yXCmi1dHy4sHKQwoI00vJCbgz3lp73UBQDuMvxWsgWOOKSYCIHLrrQd86N4l3wXhsBBRtKedYB47le9g8Zr%2FnDwq%2BdI2YPhPO7WQClDIXdaUd4MDdhm1cuAicpe4z1tVrfTNmp388ZEGMzt1jAe2oTA4spD8xCa05iWUUrFDXdDJynEZGLFaMIX93Dg9cLNsdIe45d8bUOSIwq6NgZ9jS2oSWB3Ld1Gsaig87kXrpP2wYw0mvv2iXMwy9Gv9meBdbct%2Bqfs%3D%7Ctkp%3ABk9SR47v9I6zZg
kboyd
@Amgine @sailing the thing is, I think the strap is supposed to be a contained loop. I don't think there's supposed to be a dangling piece; as far as I can tell from looking at it, it was sewn into place in the current form, and then the strap snapped off at a later point in time. Maybe I'm wrong? But the dangling bit doesn't feel right.
Okay, I've got some more photos of the boom vang attachment. Looks like the foot of the sail is fitted into a track on the boom, and the vang strap goes through special slotted clips on each side of the sail track in order to connect. Weird! What is this setup called? Can someone in #yyj #victoriaBC safely replace the strap for me until we can attach a proper vang mount point? #sailing @sailing

@ghost_towels Thanks, good tip. I've got a sailmaker contact that can probably help.
Any idea what I can call it? My searches haven't turned up anything ready-made online. The webbing/straps go up to a metal plate (bridle? saddle? shoe? cuff?) on the top side of the boom, through strap slots, in order to apply evenly-distributed downward force. It looks like it should be some kind of kit, but no dice with DuckDuckGo and google.
@FriedSoftShellCrab It might be a Gulfstar of some kind. The stern cabin portlights seem to match (though the cant of the stern doesn't). https://www.yachtworld.com/yacht/1980-gulfstar-44-center-cockpit-9522141/
@linuxguy My co-op bought an "identical" boat to the one we previously had, so we have parts for both types. The new boat has boltrope sails, but the old boat was loose-footed & the old boat's sails are slightly better condition. Trying to decide which set to sell vs which to keep.