American 18 inch torpedo

There have been a number of 18 inch torpedoes in service with the United States. These have been used on ships and submarines of the US Navy. American "18 inch" torpedoes were actually 17.7 inches (45 cm) in diameter, beginning with the "Fiume" Whitehead torpedo of 1890.

Ship classes that carried 18 inch torpedoes include:

Name Country In service date Platform / target Dimensions Warhead Propulsion Performance
"Fiume" Whitehead torpedo  US 1894 Surface / Surface Diameter:45 cm (17.7 in)

Length:360 cm (140 in)
Weight:383 kg (845 lb)

54 kg (119 lb)
Guncotton
Compressed air Speed:49.1 km/h (26.5 kn)
Range:0.73 km (800 yd)
Mark 4 (Bliss-Leavitt) US1908-1922Submarine / Surface shipDiameter:450 mm (17.72 in)
Length:5,000 mm (197 in)
Weight:680 kg (1,500 lb)
Vertical Turbine
Mark 6 (Bliss-Leavitt)  US 1911-1922 Surface / Surface ship Diameter:45 cm (17.7 in)
Length:520 cm (204 in)
Weight:820 kg (1,800 lb)
Turbine Speed:65 km/h (35 kn)
Range:1,800 m (2,000 yd)
Mark 7 (Bliss-Leavitt (Short)  US 1917 Submarine / Surface ship Diameter:45 cm (17.7 in)
Length:370 cm (144 in)
Weight:470 kg (1,036 lb)
127 kg (281 lb)
TNT
Turbine Speed:65 km/h (35 kn)
Mark 7 (Bliss-Leavitt)(long)  US 1912-1945 Submarine & Surface / Surface ship Diameter:45 cm (17.7 in)
Length:520 cm (204 in)
Weight:763 kg (1,682 lb)
148 kg (326 lb)
TNT
Turbine Speed:65 km/h (35 kn)
Range:3,200 m (3,500 yd)
or 5,500 m (6,000 yd)
Whitehead torpedo Mk.1 (short)  US 1894-1913 Surface / Surface ship Diameter:45 cm (17.7 in)
Length:360 cm (140 in)
Weight:383 kg (845 lb)
54 kg (118 lb)
Guncotton
Air-flask Brotherhood pattern engine Speed:49.1 km/h (26.5 kn)
Range:730 m (800 yd)
Whitehead torpedo Mk.1 (long)  US 1894-1922 Surface / Surface ship Diameter:45 cm (17.7 in)
Length:500 cm (197 in)
Weight:530 kg (1,160 lb)
100 kg (220 lb)
Guncotton
Air-flask Brotherhood pattern engine Speed:50.9 km/h (27.5 kn)
Range:730 m (800 yd)
Whitehead torpedo Mk.2 (short)  US 1896-1913 Surface / Surface Diameter:45 cm (17.7 in)
Length:360 cm (140 in)
Weight:383 kg (845 lb)
54 kg (118 lb)
Guncotton
Air-flask Brotherhood pattern engine Speed:50 km/h (27 kn)
Range:730 m (800 yd)
Whitehead torpedo Mk.2 (long)  US 189?-1922 Surface / Surface Diameter:45 cm (17.7 in)
Length:500 cm (197 in)
Weight:559 kg (1,232 lb)
60 kg (132 lb)
Guncotton
Air-flask Brotherhood pattern engine Speed:52.8 km/h (28.5 kn)
Range:1,400 m (1,500 yd)
Whitehead torpedo Mk.3  US 1898-1922 Surface / Surface Diameter:45 cm (17.7 in)
Length:360 cm (140 in)
Weight:383 kg (845 lb)
54 kg (118 lb)
Guncotton
Air-flask Brotherhood pattern engine Speed:49.1 km/h (26.5 kn)
Range:730 m (800 yd)
Whitehead torpedo Mk.5  US 1910-1922 Surface & Submarine / Surface Diameter:45 cm (17.7 in)
Length:520 cm (204 in)
Weight:659 kg (1,452 lb)
91 kg (200 lb)
Guncotton
Heated Air-flask Brotherhood pattern engine Low:50 km/h (27 kn)
Range:3,700 m (4,000 yd)
Medium:67 km/h (36 kn)
Range:1,800 m (2,000 yd)

High:74 km/h (40 kn)
Range:910 m (1,000 yd)

See also

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