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Cannon-class destroyer escort
USS Cannon (DE-99) underway in Delaware Bay on 5 September 1943 (NH 83390)
The USS Cannon (DE-99)
Class overview
Name: Cannon class destroyer escort
Operators: Flag of the United States.svg United States Navy
Naval Ensign of Free France.svg Free French Naval Forces
Flag of Brazil.svg Brazilian Navy
Flag of Greece.svg Hellenic Navy
Naval Ensign of Japan.svg Japan Maritime Self-Defense Force
Flag of the Philippines.svg Philippine Navy
Flag of the Republic of China.svg Republic of China Navy
Flag of South Korea.svg Republic of Korea Navy
Naval Ensign of Thailand.svg Royal Thai Navy
Naval Ensign of Italy.svg Marina Militare
Flag of Peru (state).svg Peruvian Navy
Flag of Uruguay.svg Uruguayan Navy
Preceded by: Buckley class destroyer escort
Succeeded by: Edsall class destroyer escort
Planned: 116
Completed: 72
Cancelled: 44
Preserved: 1
General characteristics
Type: Destroyer Escort
Displacement: 1,240 tons standard
1,620 tons full load
Length: 93.3 metres (306.1 ft)
Beam: 11 metres (36.1 ft)
Draft: 3.5 metres (11.5 ft) full load
Propulsion: 4 GM Mod. 16-278A diesel engines with electric drive
4.5 MW (6000 shp), 2 screws
Speed: 21 knots
Range: 10,800 nmi at 12 knots (22 km/h)
Complement: 15 officers
201 enlisted men

The Cannon class destroyer escorts were built by the United States primarily for ocean anti-submarine warfare escort service during World War II. The lead ship, USS Cannon (DE-99) was commissioned on 26 September 1943 at Wilmington, Delaware. Of the 116 ships ordered 44 were canceled and six commissioned directly into the Free French Forces. Destroyer escorts were regular companions escorting the vulnerable cargo ships.

The class was also known as the DET type from their Diesel Electric Tandem drive.[1] The DET's substitution for a turbo-electric 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]

BRP Rajah Humabon (PF-11) of the Philippine Navy, formerly the USS Atherton (DE-169), remains as the only confirmed commissioned ship of this class as of 2013.

Hull numbersEdit

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 transfersEdit

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|date= }} 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 ShipsEdit

Transferred to BrazilEdit

Postwar dispersalEdit

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

Transferred to UruguayEdit

Transferred to GreeceEdit

Transferred to ItalyEdit

Transferred to JapanEdit

Transferred to the NetherlandsEdit

Transferred to PeruEdit

Transferred to the PhilippinesEdit

BRP Rajah Humabon (PF 11)

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

Transferred to South KoreaEdit

Transferred to Republic of China (Taiwan)Edit

Transferred to ThailandEdit

Other notablesEdit


  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 turbo-electric 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 escort mounted a direct drive diesel configuration that proved to be extremely reliable." 

External linksEdit

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