Anchor Bracket.

[vyv_cox]

Stanlow ??

I used to go up MSC on the 20,000 tonners to load at Stanlow Refinery / Terminal .... that was when it was Shell.

Thornton Research Centre was on the same site as Stanlow. Now part of Chester Uni.

 

[vyv_cox]

Yes I have seen that mainly due to the machinist not reading my drawing correctly

Did you find the reason for the non-existent radius bad design or manufacturer

A variety of reasons. Reconditioning not done well, design and manufacture. I created charts of minimum radius for central workshop to use.

Trades had been cut to the bone thanks to the false policy of putting all engineering out to contract. When this was found to be flawed the company trained up operators to get things going again. These were good guys but without the benefit of apprenticeship.

 

[Refueler]

Thornton Research Centre was on the same site as Stanlow. Now part of Chester Uni.

I think we are talking different Test centres as the Ford one was in Essex and dedicated to development of Ford Motors - such as the RS series etc.

I may have the name wrong - its been many years ... could have been Thornham ....

Thinking about Thornton though ... Shell was a Steamship company for many years while BP was mainly Motorships. I was on one ship - ST Linga - where we had a team of Thornton guys on board with sensors and probes into the huge boilers on board providing the superheated steam for the turbines ... idea being to see if any way to improve the huge fuel consumption of a steamer ... St Linga was a 300,000 ton tanker.

 

[Neeves]

I see no evidence of a progressive fracture or bright final fracture. Not knowing when the rusting took place does not help of course but we do know that the shackle held the boat at anchor prior to its demise on recovery.

There is no doubt that some of the anchoring kit sold in chandleries is very dodgy. One of the C-links I tested was very poor indeed, the fracture face looked nothing like steel.

Vyv

I know no more of the failure sequence other than I have posted.

I had noted and was puzzled by the rust, corrosion, on the break surface. I was puzzled because the rest of the shackle is totally clear of rust and I would have expected that the level of rust on the break would have been seen in other locations, such as the shackle pin itself where usage might have thinned the gal.

I assume that the shackles has been galvanised - but if so - the galvanising is good.


I'm not suggesting a forensic search for clues based on the images - in many respects the fact that shackle failed is sufficient (I would hope) to motivate others to replace any shackles that are not backed by a reputable manufacturer.

Jonathan