American Shipbuilding Times

Ship Class

Type

Tonnage (Full)

Year Laid Down

Days between ordering and keel laying (average)

Length between keel laying and commissioning (average)

Days to Build 100 Tons

Gato

Submarine

1,525

1940
(6 Boats)

Unknown

415 days

27.2 days

1941
(27 Boats)

Unknown

364 days

23.86 days

1942
(35 Boats)

Unknown

332 days

21.76 days

1943
(5 Boats)

Unknown

363.2 days

23.82 days

Balao

Submarine

1,525

1942
(19 Boats)

Unknown

444 days

29.1 days

1943
(71 Boats)

Unknown

340 days

22.32 days

1944
(30 Boats)

Unknown

395 days

25.9 days

Tench

Submarine

1,570

1943
(2 Boats)

Unknown

926 days

58.79 days

1944
(17 Boats)

Unknown

209 days

13.26 days

1945
(6 Boats)

Unknown

382 days

24.26 days

LST 1

Landing Ship


1942
(199 LSTs)

Unknown

174 days


1943
(122 LSTs)

Unknown

133 days


Fletcher

Destroyer


1941

Unknown

517 days


1942

Unknown

353 days


1943

Unknown

282 days


Gearing

Destroyer


1944

Unknown

273 days


1945

Unknown

321 days


Iowa (BB-61)

Battleship

58,000

1940
(BB-61 to 62)

403 days

975 days

1.68 days

1941
(BB-63 to 64)

218 days

1,215 days

2.09 days

Alaska

Large Cruiser

34,253

1941
(CB-1)

464 days

913 days

2.67 days

1942
(CB-2)

511 days

958 days

2.8 days

Casablanca

Carrier, Escort

10,122

1942
(5 Ships)

Unknown

258 days

2.55 days

1943
(32 Ships)

Unknown

188 days

1.82 days

1944
(13 Ships)

Unknown

110 days

1.09 days

Independence

Carrier, Light

14,751

1941
(CVL-22 to 26)

Unknown

589 days

3.99 days

1942
(CVL-27 to 30)

Unknown

446 days

3.02 days

Essex

Carrier

36,380

1941

Unknown

587 days

1.61 days

1942

Unknown

530 days

1.46 days

1943

Unknown

616 days

1.69 days

1944

Unknown

725 days

1.99 days

Midway

Carrier, Battle

45,000

1943
(CV-41 to 42)

452 days

690 days

1.53 days

1944
(CV-43)

392 days

1,178 days

2.62 days