500ft Payne and Griffiths, Birmingham Submarine Depth Gauge

[Ian K]

Can anybody tell me which class of submarine this 500ft depth gauge would have been on. Thank you

 

[Pedrocut]

Grace’s Guide…

Payne and Griffiths - Graces Guide

 

[Pedrocut]

May not be used on an actual submarine…could be pressure chamber ?

 

[Ian K]

Thanks Pedrocut, you may be right. All I can find are 700ft gauges on the older subs. Hopefully somebody might come up with an idea.

 

[Morturn]

I have just done a image reverse search and found this:

This item is a vintage submarine depth gauge manufactured by Payne & Griffiths Ltd of Smethwick, Birmingham. It is believed to be from a British Royal Navy T-Class submarine dating back to the 1930s or 1940s.

The gauge features two scales: one measuring depth in feet (up to 500 or 350 depending on the specific model) and another measuring pressure in pounds per square inch (lb/in²).

The maximum depth a British Royal Navy T-Class submarine could submerge to was 350 feet so a gauge to 500ft gave a good margin.

There is also a Wikipedia entry telling you all you need to know about the T Class sub you ever wanted to know, but were afraid to ask: https://en.wikipedia.org/wiki/British_T-class_submarine

 

[Ian K]

Thank you, Morturn, that's terrific info. I spent 29 years of my 31 years Service in the Submarine Service and still every day is a school day