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UNITED STATES OF AMERICA

MINE WARFARE SHIPS

ROBERT H. SMITH destroyers-minelayers

nearly sister-ship De Haven 1944

No Name Builder Laid down Launched Comm Fate
DM23, 1/1969- MMD23 Robert H. Smith Bath Iron Wks 1/1944 25/5/1944 8/1944 stricken 2/1971
DM24, 1/1969- MMD24 Thomas E. Fraser Bath Iron Wks 1/1944 10/6/1944 8/1944 stricken 11/1970
DM25, 1/1969- MMD25 Shannon Bath Iron Wks 2/1944 24/6/1944 9/1944 stricken 11/1970
DM26, 1/1969- MMD26 Harry F. Bauer Bath Iron Wks 3/1944 9/7/1944 9/1944 stricken 8/1971
DM27, 1/1969- MMD27 Adams Bath Iron Wks 3/1944 23/7/1944 10/1944 stricken 12/1970
DM28, 1/1969- MMD28 Tolman Bath Iron Wks 4/1944 13/8/1944 10/1944 stricken 12/1970
DM29, 1/1969- MMD29 Henry A. Wiley Bethlehem, Staten I, Port Richmond 11/1943 21/4/1944 8/1944 stricken 10/1970
DM30, 1/1969- MMD30 Shea Bethlehem, Staten I, Port Richmond 12/1943 20/5/1944 9/1944 stricken 9/1973
DM31 J. William Ditter Bethlehem, Staten I, Port Richmond 1/1944 4/7/1944 10/1944 damaged 6/6/1945, never repaired
DM32, 1/1969- MMD32 Lindsey Bethlehem, San Pedro 9/1943 5/3/1944 8/1944 stricken 10/1970
DM33, 1/1969- MMD33 Gwin Bethlehem, San Pedro 10/1943 9/4/1944 9/1944 to Turkey 8/1971 (Muavenet)
DM34 Aaron Ward Bethlehem, San Pedro 12/1943 5/5/1944 10/1944 damaged 3/5/1945, never repaired

 

Displacement standard, t

2610

Displacement full, t

3218

Length, m

112.5 wl 114.8 oa

Breadth, m

12.5

Draught, m

4.32 full load

No of shafts

2

Machinery

2 General Electric geared steam turbines, 4 Babcock & Wilcox boilers

Power, h. p.

60000

Max speed, kts

36.5

Fuel, t

oil 379 - 504

Endurance, nm (kts) 3300 (20)

Armament

3 x 2 - 127/38 Mk 12, 2 x 4 - 40/56 Bofors, 2 x 2 - 40/56 Bofors, 8 x 1 - 20/70 Oerlikon, 4 DCT, 2 DCR (56), 120 mines

Sensors

SG, SR, Mk 12/22 radars, QGA sonar
Complement

336

Ship project history: At all advantages Fletcher class destroyers not in full met the requirements of US Navy. First of all the appreciable outline profile was exposed to criticism, that at that time was considered unallowable for destroyers (this claim was shown also to their predecessors, Benson class). Creation of the new project of "barely visible" destroyer was seriously considered, she would to be armed by automatic 127/54mm DP guns (still being in designing stage). As designing "from zero" demanded too much time, it have resorted to much more rational way: already existing project of Fletcher was re-designed, having changed both bow 127mm guns by one twin, that allowed to decrease the size of a fwd superstructure. Alas, it has appeared, that thus there is no place for the majority of systems and the equipment. It has been recognised impossibility of reduction of an outline profile without cardinal alteration of the project, however the done work has not gone to waste. By this time necessity to redesign the project of Fletcher was occurred for the placing of additional antiaircraft armament. It has appeared inconveniently on existing ships as because of threat of stability decreasing, and of the absence of a place on an upper deck and superstructures. The exit has been suggested by experience of replacement of single 127mm mounts by twin in the "barely visible" destroyer project. After installation of three twin gun mounts instead of five single there was a possibility to deliver both TTs on a length (having lowered risk of their simultaneous defeat) and assign a place for additional AA automatic guns. For preservation of stability the hull have made more widely on 0.4m. Approved by the Secretary of Navy in April, 1942, the project provided armament consisted of 3õ2 127/38mm DP mounts, 2x2 40/56mm and 4õ1 20/70mm AA guns and 2õ5 533mm TT. In August the order on 69 ships has followed (one more - DD857 - was laid down as Gearing class, but completed Allen M. Sumner class).

In the summer of 1943 project changes were made, concerning in antiaircraft arms: in addition to twin 40/56mm Boforses two quadruple were added, and number of 20mm Oerlikons has increased to 11 barrels. At trials overloaded ships could not come nearer to a designed speed of 36.5kts; at the displacement close to full, they hardly achieved 31kts and at a normal displacement they were hardly faster (33kts).

In the summer of 1944 the decision on completion of 12 destroyers of Allen Ì Sumner class (DD735-740, 749-751 and 771-773, indexes were changed on DM23-34 respectively) as fast minelayers was accepted. Mine rails for 120 mines were fitted on quarter deck, for compensation of increased more than on 100t top weight removing of both TT, three Oerlikons aft and two to six DCT was provided. Despite the taken measures, a of ships at full mine stowage called anxiety and ships practically were not used on the direct assignment.

Modernizations: None.

Naval service: Following ships were badly damaged at Okinawa as a result of kamikaze actions: Robert H. Smith (25/3/1945), Adams (27/3/1945 and 31/3/1945), Lindsey (12/4/1945), Shannon (29/4/1945), Shea (22/4/1945 and 3/5/1945), Aaron Ward (3/5/1945), Gwin (4/5/1945), J. William Ditter (6/6/1945); all have passed repair, except J. William Ditter and Aaron Ward, which repair was recognised as inexpedient.

Harry F. Bauer 5/4/1945 was damaged by Japanese air torpedo at Okinawa. She was urgently repaired, but from 29/4/1945 till 6/6/1945 was three times damaged by kamikaze and has left on repair.

Robert H. Smith

 

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