Cannon-class destroyer escort

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USS Cannon (DE-99).jpg
USS Cannon (DE-99)
Class overview
Name: Cannon class
Preceded by: Buckley class
Succeeded by: Edsall class
Planned: 116
Completed: 72
Cancelled: 44
Active: 2 (Philippine Navy & Royal Thai Navy)
Preserved: 2
General characteristics
Type: Destroyer Escort
  • 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
Speed: 21 knots (39 km/h)
Range: 10,800 nautical miles (20,000 km; 12,400 mi) at 12 knots (22 km/h)
  • 15 officers
  • 201 enlisted men

The Cannon class was a class of 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, 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. BRP Rajah Humabon (FF-11) of the Philippine Navy, formerly USS Atherton, and HTMS Pin Klao (DE-1) of the Royal Thai Navy, remain the only two confirmed commissioned ships of this class as of 2017.


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]

Hull numbers[edit]

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[edit]

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[edit]

Transferred to Brazil[edit]

Postwar dispersal[edit]

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

Transferred to France[edit]

Transferred to Greece[edit]

Transferred to Italy[edit]

Transferred to Japan[edit]

Transferred to the Netherlands[edit]

Transferred to Peru[edit]

Transferred to the Philippines[edit]

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

Transferred to South Korea[edit]

Transferred to Republic of China (Taiwan)[edit]

Transferred to Thailand[edit]

Transferred to Uruguay[edit]

See also[edit]


  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 links[edit]