USAF version of the H-19A powered by a 700hp Wright R-1300-3 Cyclone engine. Many converted to SH-19B SAR helicopters. Redesignated HH/UH-19B in 1962, 264 built. Many supplied to other countries under Military Assistance Program (MAP). 
List of Operators of H-19B Chickasaw |
| Years | Model | Org | |
|---|---|---|---|
| 1951/67 | S-55 H-19 |  US Air Force | |
| 1951/57 | S-55 H-19 | US Navy | |
| 1953/73 | S-55 H-19 |  Comando de Aviacion Naval Argentina | |
| 1953/?? | S-55 H-19 |  Armée de l'Air | |
| 1954/81 | S-55 H-19 |  Ejercito del Aire y del Espacio | |
| 1955/82 | S-55 H-19 |  Fuerza Aerea de Venezuela | |
| 1956/71 | S-55 H-19 | Aviation Légère de l'Armée de Terre | |
| 1958/73 | S-55 H-19 |  Polemiki Aeroporia | |
| 1958/?? | S-55 H-19 |  Daehanminguk Gong-gun | |
| 1958/80 | S-55 H-19 |  Türk Hava Kuvvetleri | |
| 1963/86 | S-55 H-19 |  Fuerza Aerea Guatemalteca | |
| 1965/?? | S-55 H-19 |  Fuerza Aerea Ecuatoriana |
Global Distribution of H-19B Chickasaw |
|
Construction Numbers |
| C/N | Year | History | |
|---|---|---|---|
| 55-740 scrapped 1972 | 1954 | 53-4408,55408 | |
| 55-741 | 1954 | 53-4409 | |
| 55-742 | 1954 | 53-4410 | |
| 55-747 | 1954 | 53-4411 | |
| 55-748 | 1954 | 53-4412 | |
| 55-749 | 1954 | 53-4413 | |
| 55-750 | 1954 | 53-4414 | |
| 55-751 | 1954 | 53-4415 | |
| 55-752 | 1954 | 53-4416 | |
| 55-753 | 1954 | 53-4417 | |
| 55-754 | 1954 | 53-4418 | |
| 55-755 | 1954 | 53-4419 | |
| 55-756 | 1954 | 53-4420 | |
| 55-760 | 1954 | 53-4421 | |
| 55-761 | 1954 | 53-4422 | |
| 55-762 | 1954 | 53-4423 | |
| 55-763 | 1954 | 53-4424 | |
| 55-764 | 1954 | 34425,53-4425 | |
| 55-765 | 1954 | 53-4426 | |
| 55-766 | 1954 | 53-4427 | |
| 55-767 | 1954 | 53-4428 | |
| 55-768 | 1954 | 53-4429 | |
| 55-769 | 1954 | 53-4878 | |
| 55-775 | 1954 | 53-4430 | |
| 55-776 | 1954 | 53-4431 | |
| 55-777 | 1954 | 53-4432 | |
| 55-778 w/o 1964 | 1954 | 53-4433 | |
| 55-779 | 1954 | 53-4434 | |
| 55-780 | 1954 | 53-4435 | |
| 55-781 | 1954 | 53-4436 | |
| 55-782 | 1954 | 53-4437 | |
| 55-783 | 1954 | 53-4438 | |
| 55-784 | 1954 | 53-4879 | |
| 55-793 | 1954 | 53-4439 | |
| 55-794 | 1954 | 53-4440 | |
| 55-795 | 1954 | 53-4441 | |
| 55-796 | 1954 | 53-4442 | |
| 55-797 | 1954 | 53-4443 | |
| 55-798 | 1954 | 53-4444 | |
| 55-799 | 1954 | 53-4445 | |
| 55-800 | 1954 | 53-4446 | |
| 55-801 | 1954 | 53-4880 | |
| 55-809 | 1954 | 53-4447 | |
| 55-810 | 1954 | 53-4448 | |
| 55-811 | 1954 | 53-4449 | |
| 55-812 | 1954 | 53-4450 | |
| 55-813 | 1954 | 53-4451 | |
| 55-814 | 1954 | 53-4452 | |
| 55-815 | 1954 | 53-4453 | |
| 55-816 | 1954 |  53-4454 | |
| 55-826 | 1955 | 53-4455 | |
| 55-827 | 1955 | 53-4881,Z.1-1 | |
| 55-828 | 1955 | 53-4882,Z.1-2 | |
| 55-829 | 1955 | 53-4883,Z.1-3 | |
| 55-830 | 1955 | 53-4884 | |
| 55-831 | 1955 | 53-4885 | |
| 55-843 | 1955 | ,53-4456 | |
| 55-844 | 1955 | ,53-4457 | |
| 55-845 | 1955 | ,53-4458 | |
| 55-846 | 1955 | ,53-4459 | |
| 55-847 | 1955 | ,53-4460 | |
| 55-848 | 1955 | ,53-4461 | |
| 55-856 | 1955 | ,53-4462 | |
| 55-857 | 1955 | ,53-4463 | |
| 55-858 | 1955 | ,53-4464 | |
| 55-864 | 55-864 |
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