Harken padeyes

[Lady Campanula]

A pair of these Harken-made titanium padeyes tumbled out of a box in the loft t'other day. Harken HQ ( Peewaukee ) seem to have no record of them and, so far, are unable to offer guidance on original function and SWL.

Anyone recognise the things enuff to offer guidance? The base is 94mm across, and 10mm thick, as is the bail. Note the 'angled' slot. Oh, the boltholes are 10mm i/d.

 

[Twister_Ken]

Quite beefy. Deck attachment points for runners or other turning blocks?

 

[Searush]

Intended for mounting on a vertical surface perhaps?

 

[geoid96]

Pad eye for spinnaker sheet blocks or possibly, if fixed in a suitable position, for preventer lines.

 

[Lady Campanula]

Well, Harken USA certainly don't know now - they're guessing, too, and they made them.

Might any 'injineers' care to hazard a guess re SWL at 30 degrees and 0 degrees to the plane of the base?

 

[sarabande]

assuming the base is bolted down really well, and that the alloy has a yield point of around 450 MPa (that is for each square mm), and the cross sectional dimensions of the alloy on each side of the 'hole' are about 100 mm square normal to the force, that's about 90KN, or 20,000 lbs, or 9 tonnes.


+ quite a bit for the angle.

 

[Plevier]

How about mounting on a sloping (i.e. sugar scoop type) transom for backstays?
(Why a sloping slot instead of a hole? Dunno!)

 

[saltylegs]

is there a connection between these and "Pinnochio" ?

 

[zikzik]

From memory, it looks a liitle like the forestay deck mount on my little Etap 21i. I will look it up in the morning and come back if it is similar.

 

[Lady Campanula]

One wonders about the integrity of the weld. Several online sources suggest that the welds, in Ti, are very often seriously weak - due to miniscule contamination by all sorts of materials and gasses during the complex welding process. Perhaps that complexity - and its cost - is why Harken seem to have stopped offering custom Ti deck hardware.

Anyway, Ti is apparently highly reactive until - like stainless steel - a surface dioxide film forms.

I'm still curious about the original application, and whether the device is stronger loaded from the 'high' point of the angled slot, or the 'low', parallel to the baseplate.

 

[penfold]

Titanium = wallet damage. Surprised they don't have a record of it, they can't make that much stuff from Ti alloys.

 

[Lady Campanula]

Certainly, while Harken gear is first-rate, the kit does have a tendency to induce 'angina of the wallet'. The several bits I've described - and quite a few more items of 'Big Boat' gear - were bought for not-a-lot from the late John Foulkes in his lair on the infamous Bursledon 'Chandlery Barge'.

I'd wandered in there one wild, wet and woolly January morning, early for a biz meeting nearby, and Old John - one ear clapped to the So'ton VTS channel on t'radio above his chair - sent me down one of the dark alleyways on the old barge. "Try about the fourth bay down. There's a big box there that might interest you!" There certainly was!!

The box was almost full of traveller cars, genoa cars, track end stops, 'windward sheeting' adapter kits, car couplers, Torlon ball sheaves..... by Harken and Rutgerson. All of them new. There was even a 2kg ice cream box full of replacement Torlon balls.... This was a veritable 'Alladin's Cave'. I ended up buying one of the bits, something I had no obvious need for - but it was like the January Sales that the wimmen go to; I'd 'save a lot by getting it now'....

So I wandered on, pleased with my 6" Titanium runner sheave. That night, at home, I fell to wondering about all the rest of the kit...... and I was back down at Bursledon Bridge, and Old John's Chandlery Barge, the following morning.

"I thought you'd be back, somehow," he grinned. "You had that look in your eye. The kettle's over there. Make yourself some coffee...."

 

[pvb]

"I thought you'd be back, somehow," he grinned. "You had that look in your eye. The kettle's over there. Make yourself some coffee...."

Lovely tale - don't get chandleries like that today!

Was John Foulkes from the same family as Thomas Foulkes, the chandlers who used to be under the railway arches in Leytonstone?

 

[penfold]

So I wandered on, pleased with my 6" Titanium runner sheave. That night, at home, I fell to wondering about all the rest of the kit...... and I was back down at Bursledon Bridge, and Old John's Chandlery Barge, the following morning.

"I thought you'd be back, somehow," he grinned. "You had that look in your eye. The kettle's over there. Make yourself some coffee...."

A successful pusher always knows his addicts better than they know themselves...