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Twisters: were they certified by Lloyds?
John Tetlow
199 Posts
6th May 2022 - 1:39 pm

I have somebody interested in buying my Uphams-built composite Twister, should I decide to sell her.

He raced in another Twister (he can't remember her name) many years ago and reckons that one was Lloyds classified.

He has asked if my Twister was classified by Lloyds when she was built, but I don't know the answer.

If she was, I have no document to prove it.

Any ideas as to how I should go about finding out and, if she was Lloyds classified, getting a duplicate certificate?

ps Perhaps there was a blanket classification covering all Tyler-moulded Twister hulls, or all those built by Uphams.

David Hopkins
148 Posts
6th May 2022 - 7:42 pm

you could try searching here:


Couldn't find Draig y mor!

John Tetlow
199 Posts
6th May 2022 - 8:06 pm
John MacMullen and Ann Musgrave
151 Posts
7th May 2022 - 6:09 pm

Hi John,

Whilst no expert in this field I'll offer the following observations:

In order to be 'classed' by Lloyds vessels have to have their design and scantlings approved. They also have to be built under the supervision of a Lloyds surveyor. Subsequently when in service they have to have periodic surveys and all specified remedial works carried out to the surveyor's satisfaction in order to remain 'In Class'. Vessels that are not 'In Class' may well be unable to be insured and fail other regulatory hurdles.

I think that it's highly unlikely that either Tylers or Uphams would have built any craft to 'Lloyds' unless the owner specifically requested it and paid for the privilege! Following that the 'Class' would have lapsed unless it was kept up to date.

The only avenue I can suggest is, if you can find one, to have a look for a copy of Lloyds Register of Yachts. (Sometimes to be found in the libraries of venerable clubs). I believe that it was discontinued as a printed volume in 1980. It used to give the salient details of the vessel and I'm sure would also have listed that it was 'In Class' If you Google Lloyds Register of Yachts you'll find a number of leads and see what I mean.

I think your friend may be leading you up a dead end path of no relevance!



Peter Mulville
199 Posts
8th May 2022 - 9:38 am

There was a claim in one advert for Twisters [It's on the website] that the glass fibre hull was built to Lloyds standards. I think that is the only relevant reference to Lloyds.

John Tetlow
199 Posts
12th May 2022 - 8:56 am

Thanks for your thoughts and suggestions.

Douglas Evans
5 Posts
15th May 2022 - 4:17 pm

In the early dark ages of grp many boat builders sold boats as “Lloyds Approved”. In essence this meant that the production techniques and standards used by the moulders were approved by Lloyds for what was called series production. I recall that a certificate was issued by the builders with a fancy Lloyds’ emblem. I believe that this production standard died out when the number of grp boat builders increased and costs resulted in boats being built down to a specification, rather than up to one. Tylers, Halmatic and Seamaster (amongst others) all moulded hulls/superstructures to Lloyds series production standards if the fitting out builder was prepared to pay the premium, otherwise they moulded to their own standards which were, I suspect, indistinguishable from the series production requirements, but without a certificate. Builders used to put reference to “Lloyds Approved” in their brochures as a selling point. I have not seen a brochure for a Twister, but if anyone has one it may make a helpful reference.

Peter Mulville
199 Posts
16th May 2022 - 11:00 am

Under the Twister Tab in the Memorabilia and Press Section there is an Uphams Brochure. The hull details are given as:


Glass Fibre with Lloyds Classification

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