The situation on 3rd September 1939 ITTL
57 Submarines
12 old submarines completed 1918-19
9 H class
3 L class
45 new submarines completed 1927-39
9 O class
5 P class
4 R class
12 S class
3 T class
3 U class
3 Thames class
6 Porpoise class
12 under construction
12 T class
12 Aircraft Carriers, 2 Seaplane Carriers and 2 Depot Ships plus 7 under construction
12 aircraft carriers with the number of aircraft embarked in brackets
Sans Pareil (nil) completed 1939
Britannia (nil) completed 1939
Ark Royal (72) completed 1938
Benbow (72) completed 1937
Canopus (72) completed 1936
Monarch (72) completed 1935
Marlborough (72) completed 1934
Dreadnought (72) completed 1933
Hermes (12) completed 1924
Furious (nil) completed 1917
Courageous (48) completed 1916
Glorious (48) completed 1916
2 Seaplane Carriers
Albatross
Pegasus
2 Depot Ships
Argus completed 1918 a depot ship for Queen Bee target drones
Eagle class completed 1924 an aircraft maintenance ship
6 Aircraft Carriers and one Depot Ship under construction
6 Super Implacable class
1 Unicorn class
15 Capital Ships plus 5 under construction, 4 on order and 2 more planned
2 Nelson class completed 1927
1 Hood class completed 1920
Hood fully modernised 1937-41
2 Repulse class completed 1916
Repulse fully modernised 1932-36
Renown fully modernised 1932-39
5 Revenge class completed 1916-17
5 Queen Elisabeth class completed 1914-15
Barham fully modernised 1930-34
Queen Elisabeth fully modernised 1931-34
Malaya fully modernised 1934-37
Warspite fully modernised 1934-37
Valiant fully modernised 1937-39
5 capital ships under construction, 4 on order and 2 planned
5 King George V class under construction
4 Lion class on order and 2 planned (ITTL 2 of the Super Implacables were laid down in place of Lion and Temeraire)
86 Cruisers (5 RAN and 2 NZ Division) plus 15 under construction
33 old cruisers
1 old Town class (RAN) completed 1922
13 C class completed 1917-19
8 D class completed 1918-22
4 Modified D class completed 1925
3 Modified E class completed 1926
4 Cavendish class completed 1919-25
53 new cruisers
23 Leander class (Group 1) completed 1928-32
20 Leander class (Group 2) completed 1933-37
8 Southampton class completed 1937-39
2 Edinburgh class completed 1939
15 under construction
15 Edinburgh class
220 (24½ flotillas) Destroyers (5 RAN and 9 RCN) plus 40 under construction
67 (7½ flotillas) old destroyers (5 RAN) completed 1918-24
58 V&W class destroyers (4 RAN)
9 Scott & Shakespeare class flotilla leaders (1 RAN) plus Bruce disarmed as a target.
153 (17 flotillas) new destroyers completed 1927-39
2 Experimental Fifteen Hundred Ton class
135 (15 flotillas) Fifteen Hundred Ton class (9 RCN)
16 (2 flotillas) Porcupine class
40 (5 flotillas) under construction
40 Porcupine class (8 RAN)
136 Minor War Vessels (3 RAN and 6 RIN) plus 114 under construction
68 escort vessels (ex-sloops)
8 old sloops (1 RAN and 2 RIN)
60 new sloops (2 RAN and 4 RIN)
68 fleet minesweepers
26 Old Hunt class
42 Halcyon class
114 under construction (2 RAN and 4 RIN)
2 Grimsby class (2 RAN)
4 Black Swan class escort vessels (4 RIN)
28 Black Swan class escort vessels (8 in 1938-39 Estimates and 20 in 1939-40 Estimates)
60 River class escort vessels (4 France) (1939-40 Supplementary Estimate)
20 Bangor class fleet minesweepers (1939-40 Estimates)