WesWorld

Anti sub weapons.

Type 1 depth charge

Date: 1916 (design), 1917 (in service)
Total Weight: 420 lbs (191 kg)
Explosive Charge: 300 lbs (136 kg) timed fuse
Sinking Rate: 6 feet per second
Notes: Standard depth charge during great war

Type 2 depth charge

Date: 1917 (design), 1918 (in service)
Total Weight: 420 lbs (191 kg)
Explosive Charge: 300 lbs (136 kg) timed fuse
Sinking Rate: 6 feet per second
Notes: Redesigned type 1 with an improved fuse, pistol and booster mechanism for more reliable depth performance, main type until 1932, standard depth charge for vessels smaller than destroyers.

Type 3 depth charge

Date: 1917 (design), 1918 (in service)
Total Weight: 745 lbs (338 kg)
Explosive Charge: 600 lbs (270 kg) timed fuse
Sinking Rate: 6 feet per second
Notes: Last type to enter service during the great war

Type 4 depth charge

Date: 1927 (design), 1928 (in service)
Total Weight: 745 lbs (338 kg)
Explosive Charge: 600 lbs (270 kg) timed fuse
Sinking Rate: 9 feet per second
Notes: Redesigned Type 3 with more streamlined shape to improve decent rate


Type 5 depth charge

Date: 1930 (design), 1932 (in service)
Total Weight: 745 lbs (338 kg)
Explosive Charge: 200 lbs (91 kg) timed fuse
Sinking Rate: 22 feet per second
Notes: Has "teardrop" shape for a much greater sink rate and is the standard depth charge for destroyers

Type 1 ahead throwing spigot round

Date: 1941 (design), 1942 (in service)
Total Weight: 65 lbs (29.5 kg)
Explosive Charge: 35 lbs (15.9 kg) contact fuse
Sinking Rate: 22 feet per second
Notes: Has "teardrop" shape for a much greater sink rate and is the standard depth charge. There are two types of mounts, a 12 round stationary mount and a 24 round trainable mount, later weighs 1 ton with rounds

Type 1 ahead throwing rocket round

Date: 1932 (design), 1933 (in service)
Total Weight: 85 lbs (39 kg)
Explosive Charge: 35 lbs (15.9 kg) contact fuse
Sinking Rate: 22 feet per second
Notes: fired from 2 round racks, first used on A class destroyers when they were converted to figates, twin mount with 56 rounds (14 salvo's) weighs 2.5 tons each

Type 2 ahead throwing rocket round

Date: 1941 (design), 1942 (in service)
Total Weight: 65 lbs (29.5 kg)
Explosive Charge: 35 lbs (15.9 kg) contact fuse
Sinking Rate: 22 feet per second
Notes: same warhead as type 1 spigot round, fired from 4 or 8 round racks, used on lighter ships

Type 1 mortar round

Date: 1942 (design), 1946 (in service, intended for 1943)
Total Weight: 390 lbs (177 kg)
Explosive Charge: 207 lbs (94 kg) time fuse
Sinking Rate: 40 feet per second
Notes: weapon automatically fired by Asdic, fired using 4 barreled 12" mortar, barrels are angled to produce desired splash pattern, mount and ammunition (64 rounds) weighs 12 tons

Torpedo's

18" (45.7cm) Type 1 Torpedo

- designed: 1916
- in service: 1917
- Range: 4000 yards at 35 knots
- Maximum Speed: 35 knots
- Warhead: 205 lb (93 kg) TNT
- Weight: 1,588 lbs (720 kg)
-power: wet heater
- Guidance: Gyro
Notes: used on most ships of the era

18" (45.7cm) Type 2 Torpedo

- designed: 1917
- in service: 1918
- Range: 2000 yards at 32 knots
- Maximum Speed: 32 knots
- Warhead: 200 lb (90 kg) TNT
- Weight: 1,036 lbs (470 kg)
-power: wet heater
- Guidance: Gyro
Notes: smaller type 1, used for aircraft

18" (45.7cm) Type 3 Torpedo

- designed: 1920
- in service: 1920
- Range: 3500 yards at 35 knots
- Maximum Speed: 35 knots
- Warhead: 319 lb (145 kg) TNT
- Weight: 1,736 lbs (787 kg)
-power: wet heater
- Guidance: Gyro
Notes:

21" (53.3cm) Type 4 Torpedo

- designed: 1916
- in service: 1917
- Range: 15000 yards at 29 knots
- Maximum Speed: 29 knots
- Warhead: 466 lb (211 kg) TNT
- Weight: 3,176 lbs (1,441 kg)
-power: wet heater
- Guidance: Gyro
Notes: first 21" torpedo in service

21" (53.3cm) Type 5 Torpedo

- designed: 1917
- in service: 1918
- Range: 3500 yards at 36 knots
- Maximum Speed: 36 knots
- Warhead: 497 lb (225 kg) TNT
- Weight: 2,215 lbs (1005 kg)
-power: wet heater
- Guidance: Gyro
Notes: early submarine torpedo

21" (53.3cm) Type 6 Torpedo

- designed: 1920
- in service: 1921
- Range: 6000 yards at 46 knots, 15,000 yards at 27 knots
- Maximum Speed: 46 knots
- Warhead: 500 lb (227 kg) TNT
- Weight: 3,521 lbs (1,597 kg)
-power: wet heater
- Guidance: Gyro
Notes: Used on destroyers and cruisers

21" (53.3cm) Type 7 Torpedo

- designed: 1927
- in service: 1928
- Range: 7000 yards at 44 knots, 15,000 yards at 27 knots
- Maximum Speed: 44 knots
- Warhead: 500 lb (227 kg) TNT
- Weight: 3,505 lbs (1,590 kg)
-power: wet heater
- Guidance: Gyro
Notes: modified type 6, reduced speed to improve reliability

21" (53.3cm) Type 8 Torpedo

- designed: 1929
- in service: 1930
- Range: 4500 yards at 46 knots, 9000 yards at 30 knots
- Maximum Speed: 46 knots
- Warhead: 507 lb (230 kg) TNT
- Weight: 3,000 lbs (1,361 kg)
-power: wet heater-steam turbine
- Guidance: Gyro
Notes: used on submarines

21" (53.3cm) Type 9 Torpedo

- designed: 1931
- in service: 1932
- Range: 6000 yards at 45 knots, 10000 yards at 33 knots, 15000 yards at 27 knots
- Maximum Speed: 45 knots
- Warhead: 494 lb (224 kg) TNT
- Weight: 3,438 lbs (1,550 kg)
-power: wet heater-steam turbine
- Guidance: Gyro
Notes: used on cruisers and destroyers

21" (53.3cm) Type 10 Torpedo

- designed: 1933
- in service: 1934
- Range: 4500 yards at 45 knots, 9000 yards at 33 knots, 14000 yards at 27 knots
- Maximum Speed: 45 knots
- Warhead: 801 lb (363 kg) TNT
- Weight: 3,841 lbs (1,742 kg)
-power: wet heater-steam turbine
- Guidance: Gyro
Notes: Modified type 9 with larger warhead and slightly shorter range, used on cruisers and destroyers

21" (53.3cm) Type 11 Torpedo

- designed: 1942
- in service: 1943
- Range: 18000 yards at 46 knots
- Maximum Speed: 45 knots
- Warhead: 880 lb (399 kg) HBX
- Weight: 4,800 lbs (2,177 kg)
-power: Hydrogen Peroxide turbine
- Guidance: Gyro
Notes: used on cruisers and destroyers

21" (53.3cm) Type 12 Torpedo

- designed: 1942
- in service: 1943
- Range: 11500 yards at 21 knots
- Maximum Speed: 45 knots
- Warhead: 960 lb (435 kg) HBX
- Weight: 3,922 lbs (1,799 kg)
-power: Hydrogen Peroxide turbine
- Guidance: Gyro
Notes: used on submarines

19" (48.3cm) Type 14 Torpedo

- designed: 1942
- in service: 1943
- Range: 4000 yards at 12 knots
- Maximum Speed: 45 knots
- Warhead: 92 lb (42 kg) HBX
- Weight: 680 lbs (308 kg)
-power: Electric battery
- Guidance: Passive Acoustic Homing
Notes: used on aircraft, homing was by four crystal hydrophones arranged around the body with simple guidance system that steered towards the loudest noise. Launch parameters were 125 knots from 250 feet (76 m).[/font]

21" (53.3cm) Type 15 Torpedo

- designed: 1943
- in service: 1945
- Range: 4000 yards at 48 knots, 12000 yards at 21 knots
- Maximum Speed: 48 knots
- Warhead: 550 lb (249 kg) HBX
- Weight: 3,200 lbs (1,452 kg)
-power: Electric battery
- Guidance: Passive Acoustic
Notes: used on subs

Submarine Mines

Mk-1 moored mine, was secured by a heavy anchor and a cable attached to the mine. The mine floated above the surface, while the anchor secured its position in the sea. Two could be carried in each torpedo tube.

Length/Diameter: 11.1ft (3.38m)/21in (533mm)
Maximum Depth: 270m
Warhead: 215kg

Mk-2 Moored mine, similar to the Mk-1 but with a larger charge designed for subs with verticle launch tubes

Length/Diameter: 7.1ft (2.15m)/4.4ft (1.33m)
Maximum Depth: 250m
Warhead: 350kg

Mk-3 Ground mine, used in shallow waters, detonated using magnetic or acoustic sensors. Two carried in each torpedo tube.

Length/Diameter: 11.2ft (3.39m)/21in (533mm)
Maximum Depth: 20m
Warhead: 950kg