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Torpedo
Brennan torpedo
Brennan torpedo replica at the Hong Kong Museum of Coastal Defence; cut-out shows the two drums of wire used for propulsion and guidance
Type
Torpedo
Service history
In service
1890-1906
Used by
British Army Royal Engineers
Production history
Designer
Louis Brennan
Designed
1874-1877
Manufacturer
Brennan Torpedo Company
Specifications
Length
15 feet (4.6 m)[1]
Effective firing range
2,000 yards (1,800 m)
Warhead weight
200 pounds (91 kg)[2]
Engine
Shore-based steam winch
Maximum depth
12 feet (3.7 m)
Maximum speed
27 knots (14 m/s)
Guidance system
Wire
Launch platform
Shore-based harbor defense installations
The Brennan torpedo was a torpedo patented by Irish-born Australian inventor Louis Brennan in 1877. It was propelled by two contra-rotating propellers that were spun by rapidly pulling out wires from drums wound inside the torpedo. Differential speed on the wires connected to the shore station allowed the torpedo to be guided to its target, up to 2,000 yards (1,800 m) away, at speeds of up to 27 knots (31 mph).
The Brennan torpedo is often claimed as the world's first guided missile, but guided torpedoes invented by John Ericsson, John Louis Lay, and Victor von Scheliha all predate it; however, Brennan's torpedo was much simpler in its concept and worked over an acceptable range at a satisfactory speed so it might be more accurate to call it the world's first practical guided missile.[3]
^Gray, Edwyn (2004). Nineteenth Century Torpedoes and Their Inventors. Naval Institute Press. ISBN 1-59114-341-1.
^"Brief History of the Torpedo". Retrieved 27 June 2013.
^Gray, Edwyn (2004). Nineteenth-Century Torpedoes and Their Inventors. Naval Institute Press. ISBN 1-59114-341-1.
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and Victor von Scheliha (electric wire guided). The Brennantorpedo, invented by Louis Brennan in 1877, was powered by two contra-rotating propellers...
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Global Information
British Army Royal Engineers