Question to the Ministry of Defence:

To ask the Secretary of State for Defence, what the full establishment is for the Submarine Service; and what its manning was as of 31 January 2018.

The latest published figures for the Trained Strength for the Royal Navy Submarine Service show that there were 830 Officers and 3,150 Ratings. Of these there are 430 Officers and 2,100 Ratings assigned to engineering branches within the Submarine Service. The number of engineers available at any one time will be determined by such factors as leave and training requirements.

All totals are rounded in accordance with the Defence Statistics rounding policy; therefore totals may not equal the sum of their parts. All numbers are rounded to the nearest 10 with numbers ending in five rounded to the nearest multiple of 20 to avoid bias.