|No||Name||Yard No||Builder||Laid down||Launched||Comm||Fate|
|DD43, 6.1924- CG1, 6.1933- DD43||Cassin, 11.1933- unnamed||58||Bath Iron Wks||5.1912||20.5.1913||7/1913||Coast Guard cutter 6.1924, destroyer 6.1933, stricken 7.1934|
|DD44, 6.1924- CG3, 5.1932- DD44||Cummings, 7.1933- unnamed||59||Bath Iron Wks||5.1912||6.8.1913||9.1913||Coast Guard cutter 6.1924, destroyer 5.1932, stricken 7.1934|
|DD45, 4.1924- CG4, 5.1931- DD45||Downes, 7.1933- unnamed||122||New York SB, Camden||6.1912||8.11.1913||2.1915||Coast Guard cutter 4.1924, destroyer 5.1931, stricken 7.1934|
|DD46||Duncan||202||Fore River, Quincy||6.1912||5.4.1913||8.1913||stricken 3.1935|
|DD47||Aylwin, 7.1933- unnamed||383||Cramp, Philadelphia||3.1912||23.11.1912||1.1914||stricken 3.1935|
|DD48||Parker||384||Cramp, Philadelphia||3.1912||8.2.1913||12.1913||stricken 3.1935|
|DD49||Benham||385||Cramp, Philadelphia||3.1912||22.3.1913||1.1914||stricken 3.1935|
|DD50||Balch, 11.1933- unnamed||386||Cramp, Philadelphia||5.1912||21.12.1912||3.1914||stricken 3.1935|
|Displacement normal, t||
|Displacement full, t||
91.5 wl 93.1 oa
|No of shafts||
DD43, 44: 2 Parsons steam turbines / 1 VTE for cruising, 4 Normand boilers
DD45 - 50: 2 Parsons steam turbines / 2 VTE for cruising, 4 Normand boilers
|Power, h. p.||
|Max speed, kts||
DD43, 44: 3 x 1 - 102/50 Mk IX, 4 x 2 - 450 TT
DD45 - 50: 4 x 1 - 102/50 Mk IX, 4 x 2 - 450 TT
These destroyers, authorized in March 1911, were the first whose design was dominated by the General Board, which was above all concerned with the operation of the battlefleet as an integrated formation. It therefore emphasized sea-keeping and range at the expense of the small silhouette which destroyermen regarded as essential for successful torpedo attacks. The board hoped to replace at least one of the 76mm/50 guns with a 102mm or even a long-recoil 127mm; C&R managed to change the gun battery to 102mm/50, a fourth twin 450mm TT replacing the fifth gun.
Unlike the 'flivvers', all had twin screws. Two (DD 43 and 44) had a reciprocating engine which could be clutched to one shaft for cruising below 15kts. The remainder had reciprocating engines on both shafts.
1917 - 1918, all: + 1 DCT (Y-gun), 2 DCR
The part of these destroyers was a part of USN Forces in Europe during Great War; Cassin was a leader of USN destroyers of Atlantic fleet in 1914-1915.