boooooom!

[Jim Cate]

Hmmm, on closer inspection of the photo, that crack was previously welded up without adding any reinforcement. Adding a sleeve as I mentioned above will add a great deal of strength to the repair. I have personally done this sort of repair twice with good success in both cases.

Cheers,

Jim

[xeon_tsd]

2x's? Are you that hard on booms? or just that lucky?

[Jim Cate]

Originally Posted by xeon_tsd

2x's? Are you that hard on booms? or just that lucky?

Well, it could have something to do with 40 years and well over 125,000 miles, mostly foreign cruising for the past 27 of those years.

And perhaps a propensity to use mid-boom preventers...

Cheers,

Jim

[Cheechako]

Originally Posted by xeon_tsd

Cheechako, I tried uploading a picture... lets see if it works... if not I will upload it elsewhere and link to it. Stress fracture at the boomvang. My suspicion is an unexpected / uncontrolled jibe.

yeah, the high stress area. a proper repair can be better than new: Weld up cracks, External fitted doubler riveted on with structural epoxy between.

Had the in mast furling opening reinforced on the mast on one boat of mine. Job was done professionally. looked great when complete and reinforced the suspect area where they cut out a big opening in the mast for the furling at the factory. Should have been done that way when new, they cut a rectangular opening "window" with sharp stress riser corners at the factory.

[xeon_tsd]

Originally Posted by Jim Cate

Well, it could have something to do with 40 years and well over 125,000 miles, mostly foreign cruising for the past 27 of those years.

And perhaps a propensity to use mid-boom preventers...

Cheers,

Jim

That was the answer I was expecting... tried to give you a god lead in for it.

[rtbates]

Originally Posted by xeon_tsd

Cheechako, I tried uploading a picture... lets see if it works... if not I will upload it elsewhere and link to it. Stress fracture at the boomvang. My suspicion is an unexpected / uncontrolled jibe.

I reason for this is the bad mounting method using the wrong hardware part. Anything that carries load off the boom needs to be attached to a bail type fitting. They go up the side of the boom, hence the forces are perpendicular to the fastners. Boom Bails

Those cracks can be easily fixed and a correct bail mounted with out any degradation to the boom strength.

[xeon_tsd]

FIXED!!!!!!
New to me boom. It was a few feet long, so I had it cut down... total cost should be around ....wait for it.... $500.00 w00h00!
OK OK OK so it is black and my stick is white.. meh it is now my tribute to SKA and the Two Tone record label. Plus the hull is white with black, so it works that way too. Like I said $500 to replace the boom on a 44' boat... I am in no place to complain.

[Jim Cate]

Well done! And it looks good to me, so don't sweat the color.

But... where is the vang!

BTW, if you use the vang to support the boom at rest (rather than a topping lift or gallows) overtightening the main sheet can put large stresses on the boom at the vang attachment point, and in turn lead to fractures.

Cheers,

Jim

[xeon_tsd]

The vang was laying down on Starboard. It is up again now, but in reality I don't think it is doing much. Need to replace it.