Custom transom cap

[johndoe007]

Soo am getting close here... The USN kept my stainless and although I have pictures and templates off another Otech I decided we could improve upon the design.

I will update as this goes....

I bought the towing bollards off &bay and had then shipped from Australia. They are 316 solid stainless. But they are a little sexier than standard.

Of course the bases were too wide so we cut them down to fit and then welded them onto a reinforcing plate then onto the transom cap.



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[biffer]

How strong do you reckon that will be

[johndoe007]

The welder I subcontracted to repairs bridges for the city of New York City. He has it pinned from underneath as well and has said if I rip it off he would be more worried about the transom.

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[Nos4r2]

Originally Posted by biffer

How strong do you reckon that will be

Not strong enough to tow with without a lot of bracing (IMO).

I'd be far more worried about the metal of the transom cap tearing than the welds giving way.

[colcreate]

nice bollards!

[johndoe007]

Same bollard but we ground off the hole in the resizing. Countersunk a threaded bolt inside it and also welded it to the cap. Compared to what's on the other 7 meters with stock transom caps ill take mine everyday. It's meant for civilian use not a towing service.

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[Nos4r2]

I wouldnt put anything on a transom cap unless it's a small plastic cleat to hold a trunk up without a brace to somewhere solid.The stresses on the bollard/cap securing bolts are all in the wrong direction.

[johndoe007]

Originally Posted by colcreate

nice bollards!

They are being powder coated Monday... It's like waxing but less painful. I am sure your familiar

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[johndoe007]

Originally Posted by Nos4r2

I wouldnt put anything on a transom cap unless it's a small plastic cleat to hold a trunk up without a brace to somewhere solid.The stresses on the bollard/cap securing bolts are all in the wrong direction.

The original design was for just that. A spot to tie the trunks to and for use up against a dock. I am only looking to improve the aesthetics not the functionality.

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[johndoe007]

For reference this is an original.

The major design flaws are its 5 pieces. The cap and 4 separate thru plates.

The ends are kind of pointy and don't do well long term against the tubes..

Soo I created a one piece design.

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[ncp]

5 pieces? I think Willard did a better job (sturdier & one piece)than Otech on that one. Mine is one solid piece. You've definitely improved on the original. I know that Navy tow some mine sweeping gear with the 7m's and I'd bet they use those cleats for that purpose....so they can't be that weak.

Though I do like your extra 6 inches in beam and 110 hp!!!

[johndoe007]

Willard definitely did a better job. There was no need to extend the stainless beyond the outboard ends of the transom.

Just curiously are you blacking out your hull number to protect the innocent or the guilty?

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[johndoe007]

Top down picture...

[ncp]

Originally Posted by johndoe007

Just curiously are you blacking out your hull number to protect the innocent or the guilty?

Probably just habit. I black out my license plate too in pics when it's on trailer.

[Bigtalljv]

I have a zodiac that looks just like NCP's. It's the one I wouldn't sell to JohnDoe so now he's building his own.

The military busted/bent one of the bollard pegs on mine. That's a 1/2" or 5/8" stainless peg. I hate to think how they did it. That was, however, the weak link obviously.

jason

[johndoe007]

There was a Willard in Hawaii that sold a while back. Rumor had it that while it was being hoisted aboard its mothership the lifting cable failed and the tag line stayed attached. The boat stayed attached to the ship but got dragged beneath the ship on several occasions.

I have heard several stories that they would hoist from these bollards if they were doing an underway recovery of the 7 meter rather than using the thru transom lifting eyes. It was too difficult to attach the lifting lines while underway.

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[ncp]

Originally Posted by johndoe007

There was a Willard in Hawaii that sold a while back. Rumor had it that while it was being hoisted aboard its mothership the lifting cable failed and the tag line stayed attached. The boat stayed attached to the ship but got dragged beneath the ship on several occasions.

I have heard several stories that they would hoist from these bollards if they were doing an underway recovery of the 7 meter rather than using the thru transom lifting eyes. It was too difficult to attach the lifting lines while underway.

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A friend (Naval Academy graduate), has been in one while it capsized. It stayed attached to the sling and got turned sideways. He said he wasn't driving...

Funny, I let him drive mine and he backed into the rocks... Luckily, I had my aluminum prop on. Now, I believe him and know why they don't let officers drive!

[rocknrolla]

[QUOTE=johndoe007;525175]Soo am getting close here... The USN kept my stainless and although I have pictures and templates off another Otech I decided we could improve upon the design.

I will update as this goes....

I bought the towing bollards off &bay and had then shipped from Australia. They are 316 solid stainless. But they are a little sexier than standard.

Of course the bases were too wide so we cut them down to fit and then welded them onto a reinforcing plate then onto the transom cap.
Yam mekin a bang tidy job of that looey cnt wait t see it when its complete

[jyasaki]

Originally Posted by rocknrolla

Yam mekin a bang tidy job of that looey cnt wait t see it when its complete

Are you by any chance related to Garfish/Willfish?




jky

[kerny]

Originally Posted by jyasaki

Are you by any chance related to Garfish/Willfish?




jky