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Who built LR5

Latest comment: 1 year ago1 comment1 person in discussion

LR5 is shown in this Article as having been built by James Fisher & Sons. This is incorrect.

I suppose that the Navy bought or commissioned James Fisher & Sons to refurbish and modify LR5 into a rescue vehicle, this I do not know.

However, what I do know is that originally LR5 it was built in 1977 by Vickers Slingsby (Kirkbymoorside, North Yorkshire) for Vickers Offshore. Vickers Slingsby was owned by Vickers Offshore. When Vickers Offshore was taken over by BUE (British Underwater Engineering), Vickers Slingsby became Slingsby Engineering, later Perry-Slingsby and now Forum Subsea Technologies.

The LR5 submersible was originally built as a dive support submersible for use in North Sea offshore operations. It comprised 3 modules:

- Front - the command module for the pilot and operational crew. Constructed from GRP (Glass Reinforced Plastic) capable of taking external pressure. - Middle - the dive support module, constructed from steel so as to be able to take differential pressure in either directions. - Rear – the machinery module, constructed from GRP.

The source of my knowledge is personal. I joined Vickers Slingsby in 1977 as a debutant engineer while LR5 was being completed. As part of my training, I participated in LR5's trials at Loch Linnhe and was honoured to be on its first dive. Prior to retirement I was the First Chief Engineer (Controls) at Aker Solutions AS.

Dr Meir Greenfeld Greenme17 (talk) 10:39, 13 February 2023 (UTC)Reply

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