Howell torpedo at the Naval War College Museum in Newport, Rhode Island
Type
Anti-surface ship torpedo[1]
Place of origin
United States
Service history
In service
1890–1898[2]
Used by
United States Navy
Production history
Designer
John A. Howell[2]
Designed
1870[2]
Manufacturer
Hotchkiss Ordnance Company[2]
Produced
1889[2]
No. built
50 units[2]
Specifications
Mass
580 lbs[2] (263.1 kg)
Length
132 inches[2]
Diameter
14.2 inches[2] (335.3 cm)
Effective firing range
400 yards[2] (365.8 m)
Warhead
wet guncotton[2]
Warhead weight
100 lbs[2] (45.4 kg)
Detonation mechanism
Contact device
Engine
Flywheel[2]
Maximum speed
25 knots[2]
Launch platform
Battleships and torpedo boats[1]
The Howell Automobile Torpedo was the first self-propelled torpedo produced in quantity by the United States Navy, which referred to it as the Howell Mark I torpedo.[1] It was conceived by Lieutenant Commander John A. Howell, United States Navy, in 1870, using a 60 kg (130 lb) flywheel spun at a very high speed (10000 to 12000 rpm) to store energy and drive propellers.
^ abcThe Howell Torpedo, U.S. Navy, 14.2 inches, Mark I, General Description. United States Navy. 1 September 1896.
^ abcdefghijklmn"Torpedo History: Howell Torpedo". Archived from the original on 2014-09-15. Retrieved 2013-05-27.
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