Cannon-class destroyer escort

USS Cannon (DE-99)
Class overview
Name: Cannon class
Operators:
Preceded by: Buckley class
Succeeded by: Edsall class
Planned: 116
Completed: 72
Cancelled: 44
Active: 1 (Royal Thai Navy)
Preserved: 3
General characteristics
Type: Destroyer Escort
Displacement:
  • 1,240 tons standard
  • 1,620 tons full load
Length: 93.3 m (306 ft)
Beam: 11 m (36 ft)
Draft: 3.5 m (11 ft) full load
Propulsion:
Speed: 21 knots (39 km/h)
Range: 10,800 nautical miles (20,000 km; 12,400 mi) at 12 knots (22 km/h)
Complement:
  • 15 officers
  • 201 enlisted men
Armament:

The Cannon class was a class of destroyer escorts built by the United States primarily for ocean antisubmarine warfare escort service during World War II. The lead ship, USS Cannon, was commissioned on 26 September 1943 at Wilmington, Delaware. Of the 116 ships ordered, 44 were cancelled and six were commissioned directly into the Free French Forces. Destroyer escorts were regular companions escorting the vulnerable cargo ships.

With the decommissioning of the Philippine Navy's BRP Rajah Humabon (PS-11) in March of 2018, HTMS Pin Klao (DE-1) of the Royal Thai Navy, remains the only confirmed commissioned ship of this class as of 2018.

Propulsion

The class was also known as the DET type from their diesel electric tandem drives.[1] The DET's substitution for a turboelectric propulsion plant was the primary difference with the predecessor Buckley ("TE") class.[2] The DET was, in turn, replaced with a direct-drive diesel plant to yield the design of the successor Edsall ("FMR") class.[3]

Hull numbers

A total of 72 ships of the Cannon class were built.

  • DE-99 through DE-113 (six are French)
  • DE-162 through DE-197
  • DE-739 through DE-750
  • DE-763 through DE-771

Wartime transfers

During World War II, six ships of the class were earmarked for the Free French Naval Forces and a further eight were transferred the Brazilian Navy.

Free French ships

Transferred to Brazil

Postwar dispersal

After the end of World War II, the United States Navy transferred many ships of the Cannon class to other navies.

Transferred to France

Transferred to Greece

Transferred to Italy

Transferred to Japan

Transferred to the Netherlands

Transferred to Peru

Transferred to the Philippines

BRP Rajah Humabon (PF-11) of the Philippine Navy

Transferred to South Korea

Transferred to the Republic of China (Taiwan)

Transferred to Thailand

Transferred to Uruguay

See also

References

  1. ↑ U.S. Destroyers: an illustrated design history by Norman Friedman. Chapter 7. ISBN 1-55750-442-3.
  2. ↑ Rivet, Eric; Stenzel, Michael (April 22, 2011). "Classes of Destroyer Escorts". History of Destroyer Escorts. Destroyer Escort Historical Museum. Retrieved July 8, 2012. The Cannon class was very similar in design to the Buckley class, the primary difference being a diesel-electric power plant instead of the Buckley class's turboelectric design. The fuel-efficient diesel-electric plant greatly improved the range of the Cannon class, but at the cost of speed.
  3. ↑ Rivet, Eric; Stenzel, Michael (April 22, 2011). "Classes of Destroyer Escorts". History of Destroyer Escorts. Destroyer Escort Historical Museum. Retrieved July 8, 2012. Except for the propulsion, the EDSALL class was nearly identical to the CANNON class in every respect. This fourth class of destroyer escorts mounted a direct-drive diesel configuration that proved to be extremely reliable.
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