Whitehead Mark 1B torpedo

Whitehead Mark 1B torpedo
Whitehead torpedo mechanism, published 1891
Type	Anti-surface ship torpedo[1]
Place of origin	Austria-Hungary
Service history
In service	1894–1922[1]
Used by	United States Navy[2]
Production history
Designer	Robert Whitehead
Designed	1892[1]
Manufacturer	Torpedofabrik Whitehead & Co.[3] E. W. Bliss Company
Specifications
Mass	1160 pounds[1]
Length	197 inches (5.0 meters)[1]
Diameter	17.7 inches (45 centimeters)[1]
Effective firing range	800 yards[1]
Warhead	wet guncotton[1]
Warhead weight	220 pounds[1]
Detonation mechanism	War Nose Mk 1 contact exploder[1]
Engine	3-cylinder reciprocating
Maximum speed	27.5 knots[1]
Guidance system	depth control, gyroscope[1]
Launch platform	battleships and torpedo boats[1]

The Whitehead Mark 1B torpedo,^[4] designated as a Torpedo Type B,^[5] was a variant of the Whitehead Mark 1 torpedo adopted by the United States Navy for use in an anti-surface ship role after the E. W. Bliss Company of Brooklyn, New York secured manufacturing rights in 1892.^[2] The primary differences between the Mark 1 and the Mark 1B were that the Mark 1B was longer, carried a heavier guncotton charge in the warhead and included an improved guidance system.^[6]