Reddit reviews Royal Navy Submarine: 1945 to 1973 ('A' class - HMS Alliance) (Owners' Workshop Manual)

Edit: Directly relevant to your question, I haven't read it, and it focuses on A class, not S class, but https://www.amazon.co.uk/Royal-Navy-Submarine-Manual-Alliance/dp/0857333895/ref=sr_1_7?ie=UTF8&qid=1511644698&sr=8-7&keywords=a+class+submarine might be useful to you; though it's a 1945 boat and would have quickly been altered to conform with the shifting of submarine priorities once the Cold War began.

 

On British submarines at that point (1939) you'd have something like 8 officers I think? Including such roles as:

 

• Captain/CO (actual rank of at least Commander I believe, though due to shortages and "overcautious" older Commanders, Lieutenant Commanders held commanding positions too during the war.)
  
• 1st Lieutenant/XO (2nd in command and actual rank of Lieutenant Commander/Lieutenant, and also doubled as the Electrical Officer; see [NOTE] below.)
  
  Both of these officers would idealy be perisher qualified, war allowing, not only that but they would have at least a basic working knowledge of every position on the submarine.
  
   
  
  
  After that you have officer roles including but not limited to and in no particular order:
  
   
  
  
  
• Torpedo Officer
  
• Engineer Officer
  
• Sonar Officer
  
• Communications Officer
  
• Navigation Officer
  
• Gunnery Officer
  
   
  
  In addition, due to the special circumstances of submarines (limited crew numbers and a high degree of independance) most people aboard, be that officer or enlisted, would have some knowledge of roles outside theirs, with a priority being placed first and foremost on engineering, followed by other vital skills such as torpedo loading and maths (for navigation or attack). [NOTE:] British submarines as far as my reading has made me aware did NOT have electrical officers until the early '50s as they simply weren't needed before then, and the 1st Lieutenant generally held responsibility for electrical engineering prior to the appointment of dedicated officers.
  
   
  
  
  Finally, most of what I've written here I have learned from The Silent Deep - The Royal Navy Submarine Service Since 1945 by Peter Hennessy and James Jinks. I would call it the gold standard in submarine literature - highly detailed and researched, readable, and presented in an excellent style (imo of course). Whilst it does focus on the Royal Navy exclusively, unfortunately for you its subject is the Cold War, and only mentions WWII and prior in order to establish trends in submarine thinking, and the state of play before the Cold War kicked off full time. Not only that but apart from Polmar's work, The Silent Deep has spoiled me - most other literature now seems sensationalist and "page turney" by comparison.
  
   
  
  EDIT: formatting from a phone is hard ;(