The ''Claud Jones''-class destroyer escorts were four

destroyer escort Destroyer escort (DE) was the United States Navy mid-20th-century classification for a warship designed with the endurance necessary to escort mid-ocean convoys of merchant marine ships. Development of the destroyer escort was promoted by th ...

s built for the

United States Navy The United States Navy (USN) is the naval warfare, maritime military branch, service branch of the United States Department of Defense. It is the world's most powerful navy with the largest Displacement (ship), displacement, at 4.5 millio ...

in the late 1950s. These ships were a diesel-powered version of the earlier and were designed with the aim of producing a cheaper ship suitable for rapid production in wartime. These ships also had reduced armament and speed compared to their predecessors. They were not seen as effective

anti-submarine warfare Anti-submarine warfare (ASW, or in the older form A/S) is a branch of underwater warfare that uses surface warships, aircraft, submarines, or other platforms, to find, track, and deter, damage, or destroy enemy submarines. Such operations ar ...

vessels by the United States Navy and were sold after only 15 years service to the

Indonesian Navy The Indonesian Navy (, TNI-AL) is the Navy, naval branch of the Indonesian National Armed Forces. It was founded on 10 September 1945 and has a role to patrol Indonesia's lengthy coastline, to enforce and patrol the territorial waters and Exclus ...

Description

The class was designed under project SCB 131 as a cost-effective version of an

(ASW) ship that could be built quickly in case of rapid mobilization. The ''Claud Jones'' class had a

standard displacement The displacement or displacement tonnage of a ship is its weight. As the term indicates, it is measured indirectly, using Archimedes' principle, by first calculating the volume of water displaced by the ship, then converting that value into wei ...

of and were at full load. The destroyer escorts were long at the

waterline The waterline is the line where the hull of a ship meets the surface of the water. A waterline can also refer to any line on a ship's hull that is parallel to the water's surface when the ship is afloat in a level trimmed position. Hence, wate ...

and overall with a beam of and a

draft Draft, the draft, or draught may refer to: Watercraft dimensions * Draft (hull), the distance from waterline to keel of a vessel * Draft (sail), degree of curvature in a sail * Air draft, distance from waterline to the highest point on a v ...

of . The ''Claud Jones'' class had an aluminum

superstructure A superstructure is an upward extension of an existing structure above a baseline. This term is applied to various kinds of physical structures such as buildings, bridges, or ships. Aboard ships and large boats On water craft, the superstruct ...

, a tripod mast forward and a pole mast further back amidships, with two stacks. Following the guidelines given to them, the designers chose a single- shaft diesel-powered ship to maximize cost effectiveness. The ''Claud Jones'' class were given four Fairbanks Morse 38ND8

diesel engine The diesel engine, named after the German engineer Rudolf Diesel, is an internal combustion engine in which Combustion, ignition of diesel fuel is caused by the elevated temperature of the air in the cylinder due to Mechanics, mechanical Compr ...

s rated at . The class had a range of at and a maximum speed of . The ships were initially armed with two /50 caliber guns, one located forward with a closed shield and one located aft with an open shield. For ASW, the destroyer escorts were equipped with two forward-firing

hedgehog A hedgehog is a spiny mammal of the subfamily Erinaceinae, in the eulipotyphlan family Erinaceidae. There are 17 species of hedgehog in five genera found throughout parts of Europe, Asia, and Africa, and in New Zealand by introduction. The ...

anti-submarine

mortars Mortar may refer to: * Mortar (weapon), an indirect-fire infantry weapon * Mortar (masonry), a material used to fill the gaps between blocks and bind them together * Mortar and pestle, a tool pair used to crush or grind * Mortar, Bihar, a village i ...

, two fixed

Mark 32 Surface Vessel Torpedo Tubes Mark 32 surface vessel torpedo tubes (Mk 32 SVTT) is a torpedo launching system designed for the United States Navy. History The Mark 32 has been the standard anti-submarine torpedo launching system aboard United States Navy surface vessels s ...

and one

depth charge A depth charge is an anti-submarine warfare (ASW) weapon designed to destroy submarine A submarine (often shortened to sub) is a watercraft capable of independent operation underwater. (It differs from a submersible, which has more limited ...

rack placed over the stern. The fixed torpedo tubes were later removed and replaced with two triple tube mounts. In 1961, ''Charles Berry'' and ''McMorris'' received a Norwegian-designed Terne III ASW rocket-propelled depth-charge system. The ''Claud Jones'' class was initially equipped with

variable depth sonar Sonar (sound navigation and ranging or sonic navigation and ranging) is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigate, measure distances ( ranging), communicate with or detect objects o ...

, AN/SPS-10 and AN/SPS-6 search

radar Radar is a system that uses radio waves to determine the distance ('' ranging''), direction ( azimuth and elevation angles), and radial velocity of objects relative to the site. It is a radiodetermination method used to detect and track ...

s and SQS-29/32 hull-mounted

sonar Sonar (sound navigation and ranging or sonic navigation and ranging) is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigate, measure distances ( ranging), communicate with or detect objects o ...

. The variable depth sonar was later removed. The vessels had a ship's company of 175 with 15 officers and 160 enlisted personnel. The class was not well-received and the designers were ordered to come back with another design, leading to the successor s.

Indonesian service

The four vessels of the class were transferred to the

in 1973–1974. In Indonesian service, ''Samadikun'' (ex-''John R. Perry'') and ''Martadinata'' (ex-''Charles Berry'') had one of the 3-inch guns removed and given

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twin-mounted guns and twin-mounted guns. ''Monginsidi'' (ex-''Claud Jones'') and ''Ngurah Rai'' (ex-''McMorris'') kept their two 3-inch mounts and had twin-mounted 25 mm guns added.

Ships in class

Notes

Citations

References

* * *

External links

''Claud Jones''-class ocean escorts
a
Destroyer History Foundation

{{DEFAULTSORT:Claud Jones Indonesian Navy