Commercial version with 800HP Wright R-1300-3 Cyclone engine. 
List of Operators of S-55A |
| Years | Model | Org | |
|---|---|---|---|
| 1953/73 | S-55 H-19 |  Comando de Aviacion Naval Argentina | |
| 1953/?? | S-55 H-19 |  SABENA | |
| 1956/71 | S-55 H-19 |  Aviation Légère de l'Armée de Terre |
Global Distribution of S-55A |
|
Construction Numbers |
| C/N | Year | History | |
|---|---|---|---|
| 55-824 w/o 1958 | 1954 | 8 000 031,AVA | |
| 55-837 scrapped 1956 | 1954 | 8 000 038,AVB | |
| 55-838 scrapped 1972 | 1955 | 8 000 032,AVC,AXF | |
| 55-854 | 8.000.034,854 | ||
| 55-855 | 8.000.039,855 | ||
| 55-865 | 8.000.035,865 | ||
| 55-866 | 8.000.037,866 | ||
| 55-1020 | 1956 |  0506,N409A | |
| 55-1272 | 1959 |  KAT-41,S-41 | |
| 55-1276 | 1959 | KAT-42,S-42 |
