Daydream believer
Well-known member
Do not fit on top as it puts any load directly onto the rivets
I broke my boom!! What is this part called and how to attach it?
- Thread starter ProDave
- Start date
William_H
Well-known member
Yes totally undesirable from engineering point of view. ie pop rivets in pull load. However my concern was welfare of any heads (mine) that might be hit by boom and especially the saddle. I got bolts and nuts through boom top skin. ol'will
Daydream believer
Well-known member
Refueler
Well-known member
Often they are incorrectly called 'PAD EYE' ..... you can see one here on my foredeck :
Any Chandlers will have them ...
A better solution is what is a real 'Pad Eye' ... a triangular plate with a hole in the apex which you shackle to ... the main long side of plate sits in the end of sail channel with pins securing it in place ... on older booms - it also took the outhaul fastening of the mainsail.
Any Chandlers will have them ...
A better solution is what is a real 'Pad Eye' ... a triangular plate with a hole in the apex which you shackle to ... the main long side of plate sits in the end of sail channel with pins securing it in place ... on older booms - it also took the outhaul fastening of the mainsail.
B27
Well-known member
200,000 Laser dinghies have the mainsheet on rivets under tension.
That's not the weakest point in their boom.
So long as the rivets are big enough, and not corroded, it's fine.
Most yacht booms are a constant section of ali extrusion for the whole length, which means the back end is stronger than it needs to be.
saxonpirate
Active member
I'll repeat 25 post into the thread.. its a 'lacing eye'.. and that particular one on that boom is very skimpy to say the least. If you're going to replace yours.. do so with a model that has more surface area.. something like the one in the image below.. Sorry about the size.. 
Refueler
Well-known member
Lacing Eye .... Pad Eye .... like many things in life - names get thrown around and get into general usage.
B27 - I agree with .... thousands of boats around the world have eyes on the boom for topping lifts ... properly fastened - there should be no problem.
B27 - I agree with .... thousands of boats around the world have eyes on the boom for topping lifts ... properly fastened - there should be no problem.
Chiara’s slave
Well-known member
For topping lifts yes, it’s just the weight of the sail and boom, and the odd skipper at the gooseneck end reaching up the mast. This started with the attachment being used for reefing too. The forces acting on that are a whole different ball game, clearly!
dave_gibsea
Member
If it broke it would imply that it wasn't the best solution so it makes sense not to replace with same but get a better/stronger alternative.
Refueler
Well-known member
You did read he was actually using other gear on it as well - what it was never designed for ?
ProDave
Well-known member
Yes is wrongly had the reefing line on it as well as the topping lift, so was subject to much greater load that it was intended for.
We have repaired it, and in true PBO fashion, the replacement fitting was one we found in the "odds and sods" that we had around. If I remember I will take a picture tomorrow. The new fitting mounts with 4 holes, the rear 2 are nut and bolted using the original 2 holes in the boom, the front 2 are new holes drilled in the boom and pop riveted.
ProDave
Well-known member
The long awaited picture, the replacement fitting used for our topping lift.
This time the picture is my own boom not some random image search. The reefing line now goes to a fitting on the underside of the boom not visible in this picture.
This time the picture is my own boom not some random image search. The reefing line now goes to a fitting on the underside of the boom not visible in this picture.
flaming
Well-known member
Is the outhaul rubbing against that fitting? Looks like it will, especially on starboard tack... Look out for chafe if so.
Looking at your boom I'd have put a soft shackle or permanent spliced loop around the cross bar at the end of the boom and left it at that.
Looking at your boom I'd have put a soft shackle or permanent spliced loop around the cross bar at the end of the boom and left it at that.