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fighting ships of the world

UNITED STATES NAVY (UNITED STATES OF AMERICA)

TORPEDO SHIPS

MAHAN destroyers (1936-1944)

Dunlap 1940

Conyngham 1944

Dunlap 1944

No Name Yard No Builder Laid down Launched Comm Fate
Mahan subclass
DD364 Mahan 819 Bethlehem, Staten I, Port Richmond 6/1934 15/10/1935 9/1936 sunk 7/12/1944
DD365 Cummings 820 Bethlehem, Staten I, Port Richmond 6/1934 11/12/1935 11/1936 stricken 1/1947
DD366 Drayton 159 Bath Iron Wks 3/1934 26/3/1936 9/1936 stricken 10/1945
DD367 Lamson 160 Bath Iron Wks 3/1934 17/6/1936 10/1936 sunk in nuclear tests 25/7/1946
DD368 Flusser 127 Federal, Kearny 6/1934 28/9/1935 10/1936 stricken 4/1947
DD369 Reid 128 Federal, Kearny 6/1934 11/1/1936 11/1936 sunk 11/12/1944
DD370 Case   Boston N Yd, Charlestown 9/1934 14/9/1935 9/1936 stricken 1/1947
DD371 Conyngham   Boston N Yd, Charlestown 9/1934 14/9/1935 11/1936 stricken 6/1948
DD372 Cassin   Philadelphia N Yd 10/1934 28/10/1935 8/1936 destroyed 7/12/1941
DD372 Cassin (ii)   Mare Island N Yd, Vallejo 6/1942 25/6/1943 2/1944 stricken 1/1947
DD373 Shaw   Philadelphia N Yd 10/1934 28/10/1935 9/1936 stricken 10/1945
DD374 Tucker   Norfolk N Yd, Portsmouth 8/1934 26/2/1936 7/1936 sunk 4/8/1942
DD375 Downes   Norfolk N Yd, Portsmouth 8/1934 22/4/1936 1/1937 destroyed 7/12/1941
DD375 Downes (ii)   Mare Island N Yd, Vallejo 6/1942 22/5/1943 11/1943 stricken 1/1947
DD376 Cushing   Puget Sound N Yd, Bremerton 8/1934 31/12/1935 8/1936 sunk 13/11/1942
DD377 Perkins   Puget Sound N Yd, Bremerton 8/1934 31/12/1935 9/1936 collision 29/11/1943
DD378 Smith   Mare Island N Yd, Vallejo 10/1934 20/2/1936 9/1936 stricken 2/1947
DD379 Preston   Mare Island N Yd, Vallejo 10/1934 22/4/1936 10/1936 sunk 14/11/1942
Dunlap subclass
DD384 Dunlap 839 Bethlehem, Staten I, Port Richmond 4/1935 18/4/1936 6/1937 stricken 1/1947
DD385 Fanning 840 Bethlehem, Staten I, Port Richmond 4/1935 18/9/1936 10/1937 stricken 1/1947
  

Displacement standard, t

1488

Displacement full, t

2103

Length, m

101.8 wl 104.0 oa

Breadth, m

10.7

Draught, m

3.76 full load

No of shafts

2

Machinery

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

Power, h. p.

49000

Max speed, kts

36.5

Fuel, t

oil 201 - 522

Endurance, nm (kts) 6500 (12)

Armament

DD364 - 379, 384, 385: 5 x 1 - 127/38 Mk 12, 4 x 1 - 12.7/90, 3 x 4 - 533 TT, 2 DCR (14)

DD372 (ii), 375 (ii): 4 x 1 - 127/38 Mk 12, 2 x 2 - 40/56 Mk 1/2, 6 x 1 - 20/70 Mk 4, 2 x 4 - 533 TT, 4 DCT, 2 DCR (44)

Sensors

DD364 - 379, 384, 385: QCA sonar

DD372 (ii), 375 (ii): presumably SC-3, SG-1, Mk 12/22 radars, QCA sonar

Complement 158

 

Ship project history: Yet on design stage Farragut class destroyers were criticised by USN chief staff for insufficient, from their point of view, torpedo armament. At discussion on the General Board about requirements to new destroyers which will be built under the FY1933 programme, the judgement of supporters of strengthening of torpedo armament has prevailed, and it was offered to prepare the design with 12 TTs. Soon a sketch design with 4 triple TT banks, arranged aside, and 5 single 127/38 SP guns, was ready. Last circumstance has called the sharp criticism from the chief of Department of Naval operations (analogue of HQ chief) and this design has been turned down.

In March, 1933 the new compromise variant was ready. By insignificant increase in a hull breadth and re-planning of an armament arrangement (main gun No3 was transferred to aft superstructure, and two of three TTs have placed aside behind aft funnel) it was possible to achieve desirable result, however wider hull conducted to speed decrease that was considered as unacceptable. The way out has been found by Gibbs and Co., developed the compact machinery with sufficient high-pressure boilers and first-ever (on destroyers) double-reduction geared turbines. Though new machinery was appeared almost on 30t more heavy, than on Farragut class, it was on some thousands hp more powerful and much more sufficient: with 50t less fuel stowage Mahan had the same endurance as Farragut.

Under the FY1933 programme 16 ships were built, two more (DD384 and 385) under the FY1934 program. Latters differed from other class having both fwd guns on ring based mounts for the first time in USN: that has allowed to made easier ammunition feeding and to fulfil a mount completely enclosed. Often these ships are outlined as separate Dunlap class.

During raid of Japanese aircraft to Pearl Harbour 7/12/1941 Downes and Cassin, laying in a drydock, were badly damaged by fire. At scuttling of dock they have received additional damages. Hulls of both destroyers became so deformed, that actually were not subjects to repair. Rather undamaged have appeared only machinery and part of armament. Formally both destroyers have been repaired (though hulls have built anew, they have the same numbers, therefore from the bureaucratic point of view remained the same ships). Both new-built ships differed from other destroyers of the class by low opened "Admiralty" bridge, two TTs at the centreline and a new fire control system.

Modernizations: early 1942, Mahan, Cummings, Drayton, Lamson, Flusser, Reid, Case, Tucker, Cushing, Perkins, Smith, Preston, Dunlap, Fanning: - 1 x 1 - 127/38, 4 x 1 - 12.7/90; + 7 x 1 - 20/70 Mk 4, 4 DCT (44 DC at all)

early 1942, Conyngham: - 1 x 1 - 127/38, 2 x 1 - 12.7/90; + 2 x 1 - 20/70 Mk 4, 4 x 2 - 12.7/90, 4 DCT (44 DC at all)

late 1942, Shaw: - 1 x 1 - 127/38, 2 x 1 - 12.7/90; + 1 x 4 - 28/75 Mk 1, 4 x 1 - 20/70 Mk 4, 4 DCT (44 DC at all)

1942 - 1944, almost all survived (except Cassin (ii), Downes (ii)): + SC, SG, Mk 12/22 radars

1/1943 - mid-1944, Mahan, Cummings, Drayton, Lamson, Flusser, Reid, Case, Perkins, Smith, Dunlap, Fanning: - 2 x 1 - 20/70; + 2 x 2 - 40/56 Mk 1/2

spring 1943, Conyngham: - 4 x 2 - 12.7/90, 2 x 1 - 12.7/90; + 2 x 2 - 40/56 Mk 1/2, 3 x 1 - 20/70 Mk 4

late 1943 - mid-1944, Shaw: - 1 x 4 - 28/75; + 2 x 2 - 40/56 Mk 1/2, 1 x 1 - 20/70 Mk 4

1944, Dunlap: - 1 x 4 - 533 TT

1/1945, Lamson: - 2 x 2 - 40/56, 2 x 4 - 533 TT; + 2 x 4 - 40/56 Mk 1/2

6/1945, Shaw: - 1 x 1 - 127/38, 5 x 1 - 20/70, 3 x 4 - 533 TT; + 2 x 4 - 40/56 Mk 1/2, 2 x 2 - 20/70 Mk 4

8/1945, Lamson: - 1 x 4 - 533 TT

 

1/1946, DD365, 368, 370, 371, 378, 385: 4 x 1 - 127/38 Mk 21, 2 x 2 - 40/60 Mk 1, 5 x 1 - 20/70 Mk 10, 3 x 4 - 533 TT, 4 DCT, 2 DCR (44), SC, SG, Mk 12/22 radars, QCA sonar

1/1946, DD367: 4 x 1 - 127/38 Mk 21, 2 x 4 - 40/60 Mk 2, 5 x 1 - 20/70 Mk 10, 4 DCT, 2 DCR (44), SC, SG, Mk 12/22 radars, QCA sonar

1/1946, DD372, 375: 4 x 1 - 127/38 Mk 21, 2 x 2 - 40/60 Mk 1, 6 x 1 - 20/70 Mk 10, 2 x 4 - 533 TT, 4 DCT, 2 DCR (44), SC, SG, Mk 12/22 radars, QCA sonar

DD384: 4 x 1 - 127/38 Mk 21, 2 x 2 - 40/60 Mk 1, 5 x 1 - 20/70 Mk 10, 2 x 4 - 533 TT, 4 DCT, 2 DCR (44), SC, SG, Mk 12/22 radars, QCA sonar

 

Naval service: During raid of Japanese aircraft to Pearl Harbor 7/12/1941 Downes and Cassin, laying in a drydock, were badly damaged by fire. At scuttling of dock they have received additional damages. Hulls of both destroyers became so deformed, that actually were not subject to repair. Rather undamaged have appeared only machinery and part of armament. Formally both destroyers have been repaired (though hulls have built anew, they have the same numbers, therefore from the bureaucratic point of view remained the same ships).

Tucker 4/8/1942 was lost on American minefield in New Gebrides area. Cushing 13/11/1942 off Guadalcanal was sunk by Japanese battleship Hiei, cruiser Nagara and destroyer Teruzuki. Preston off Guadalcanal 14/11/1942 was sunk by Japanese cruiser Nagara and destroyers. Perkins 29/11/1943 was lost as a result of collision with Australian cargo vessel Duntroon off New Guinea. Mahan was damaged 27/10/1942 in collision with battleship South Dakota, 7/12/1944 off Philippines coast she received hits of three kamikazes and then should be scuttled. Practically in the same place and at the same time following ships received damages of various severity level at kamikaze attacks: Drayton (on December, 4th and 5), Lamson (7/12/1944). Reid 11/12/1944 was sunk by kamikaze at Mindanao.

Fanning 22/1/1942 was damaged in collision with destroyer Gridley. Shaw 7/12/1941 during raid of Japanese aircraft to Pearl Harbor received an air bomb hit, fire called explosion of fwd magazines, fore end was completely destroyed; repair lasted till the end of 1942; 2/4/1945 she was damaged at beaching, and so heavy, that its repair recognised inexpedient. Smith 26/10/1942 was badly damaged by Japanese aircraft and was under repair till spring of 1943.

Lamson 25/7/1946 was sunk at nuclear tests off Bikini. Conyngham was sunk as target 2/7/1948 during new weapons tests.

 

 

Drayton 1936

Ivan Gogin, 2014-15