Initial Whirlwind for Royal Navy with Pratt & Whitney Wasp R-1340-40 engines. used for search and rescue, 10 built. 
Specifications | |
List of Operators of Westland Whirlwind HAR.1 | |
| From | Organisation with model Whirlwind HAR.1 | ||
| 1953 |
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| 1955 |
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| 1976 |
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| Construction Numbers on database of Whirlwind HAR.1 | ||||||
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Construction Numbers | Help Us | |
| C/N | Year | History | |
 | wa 1 | 1952 |  XA862 |
wa 2  | 1953 | XA863 | |
| wa 3 | 1953 | XA864 | |
| wa 5 | 1954 | XA865 | |
wa 6  | 1954 | XA866 | |
| wa 7 | 1954 | XA867 | |
| wa 8 | 1954 | XA868 | |
| wa 9 | 1954 | XA869 | |
| wa 16 | 1954 | XA870 |
| wa 17 | 1954 | XA871 |