Technical information
Type | Submarine |
Displacement | 990 / 1205 BRT |
Length | 77.7 m |
Complement | 39 men |
Armament | 1 3.5" gun 2 40mm (2x1) 1 12.7mm MG 8 21" torpedo tubes (4 bow, 2 stern, 2 external amidships) 14 torpedoes |
Max speed | 19.5 / 9 knots (surfaced/submerged) |
Engines | Diesels / Electric, 2 shafts |
Power | 5000 / 1000 HP (surfaced/submerged) |
Notes on class | Submarines of this class that have detailed patrol info added are shown in bold in the list below. |
Royal Dutch Navy ships of the O 21 class
To see all O 21 class ships click here.
HNMS O 21 (P 21) | ||
HNMS O 22 (P 22) | Lost on 19 Nov 1940 | |
HNMS O 23 (P 23) | ||
HNMS O 24 (P 24) | ||
HNMS O 25 | ||
HNMS O 26 | ||
HNMS O 27 | ||
Full wartime service history on this vessel. |
See all Royal Dutch Navy Submarine classes.
Books dealing with this subject include:
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