Spending my evening trying to identify a seemingly obscure piece of boom shackle tackle.
Or, more specifically, a boom vang that seems to have a harness that goes around the boom, instead of a bracket that attaches to the boom.
Can't seem to find the right words to describe it ... but the existing one is fraying & could fail.
13 Comments
ghost_towels@sh.itjust.works · 4 pts · 330d
My guess is they did that so they wouldn’t have to drill through the boom. Might not of had a vang to begin with. Go to your local sailmakers and they can sew you up a new one.
kboyd@phpc.social · 0 pts · 330d
@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.
ghost_towels@sh.itjust.works · 1 pts · 330d
No idea, a vang bridle maybe? Interesting that it has a metal plate for the top, that seems specifically made for this then, so you’d think it would have a name.
kboyd@phpc.social · 2 pts · 329d
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
Amgine@mamot.fr · 2 pts · 328d
@kboyd @sailing
For rigging, try attaching the loop to the purchase, then lead the strap up and out the *top* slot, back in through the *bottom* slot, then the other side however feels comfortable for you. This should result in the lead to the purchase being more-centred, resulting in less twist to the boom.
As the last image suggests, the strap should be kept as short as possible. This gives the largest range for the purchase to tension.
Ask me about your purchase later..
kboyd@phpc.social · 2 pts · 328d
@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.
Amgine@mamot.fr · 1 pts · 328d
@kboyd @sailing
Okay, that would be weird, but I can see someone doing it. Do those two pieces of stainless just hook into the boltrope slot? If so, then yes, I think you are correct.
Amgine@mamot.fr · 1 pts · 328d
@kboyd @sailing
Now I am super curious, but I am on the mainland at the moment so I cannot drive down to see it...
kboyd@phpc.social · 1 pts · 328d
@Amgine @sailing It seems they do, yes. In hindsight I should have tried to see if they were easy to unclip. (That would be my expectation, and would simplify repairs if so.)
Amgine@mamot.fr · 1 pts · 328d
@kboyd @sailing
That will certainly make it easier to repair, or remove, if it works that way. Another way it may work is as a sort of shim, sliding into the bolt rope slot and with thinned edges - but that will likely require removing the boom from the gooseneck to remove it.
kboyd@phpc.social · 1 pts · 328d
@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@phpc.social · 1 pts · 328d
@Amgine @sailing uh oh. That would be "cut the strap and screw a proper bail or weld an attachment point in its place" territory, IMHO.
cbleslie@hachyderm.io · 1 pts · 328d
kboyd@phpc.social · 1 pts · 328d
@cbleslie @sailing I hope someone is able to tell me some keywords I can search for to find out what this setup is even called. Search results so far are coming up empty.