Improved HAR.2 for hot and high conditions, 24 built for RAF. Many survivors converted to HAR.10. 
Specifications Whirlwind HAR.4 |
List of Operators of Whirlwind HAR.4 |
| Years | Model | Org | |
|---|---|---|---|
| 1955/81 | Whirlwind |  Royal Air Force |
Global Distribution of Whirlwind HAR.4 |
|
Construction Numbers |
| C/N | Year | History | |
|---|---|---|---|
| wa 20 | 1954 | XD163 | |
| wa 21 | 1954 | XD164 | |
| wa 22 | 1954 | XD165 | |
| wa 25 | 1954 | XD182 | |
| wa 26 w/o 1970 | 1954 | XD183 | |
| wa 27 | 1954 | 8787M,XD184 | |
| wa 28 w/o 1958 | 1954 | XD185 | |
| wa 29 | 1954 | 8730M,XD186 | |
| wa 30 w/o 1957 | 1954 | XD187 | |
| wa 31 w/o 1956 | 1954 | XD188 | |
| wa 33 w/o 1988 | 1954 | G-BKHB,N7013H,XD777,XJ407 | |
| wa 34 w/o 1955 | 1954 | XD778,XJ408 | |
| wa 35 | 1954 | XD779,XJ409 | |
| wa 36 w/o 1965 | 1954 | XD780,XJ410 | |
| wa 37 scrapped 1999 | 1954 | XD781,XJ411 | |
| wa 38 w/o 1966 | 1954 | XD782,XJ412 | |
| wa 40 w/o 1957 | 1954 | XD783,XJ413 | |
| wa 41 w/o 1967 | 1954 | XD784,XJ414 | |
| wa 42 w/o 1971 | 1954 | XD795,XJ426 | |
| wa 43 w/o 1957 | 1954 | XD796,XJ427 | |
| wa 44 w/o 1963 | 1954 | XD797,XJ428 | |
| wa 45 scrapped 1979 | 1955 | XD798,XJ429 | |
| wa 46 scrapped 1990 | 1955 | XD799,XJ430 | |
| wa 47 w/o 1958 | 1955 | XD800,XJ431 | |
| wa 48 w/o 1971 | 1955 | XD801,XJ432 | |
| wa 49 w/o 1964 | 1955 | XD802,XJ433 | |
| wa 51 scrapped 1988 | 1955 | XD804,XJ435 | |
| wa 53 | 1955 | XD806,XJ437 | |
| wa 94 | 1955 | XJ723 | |
| wa 95 scrapped 1984 | 1955 | XJ724 | |
| wa 97 | 1955 | XJ726 | |
| wa 98 | 1955 | 8661M,XJ727 | |
| wa107 w/o 1960 | 1956 | XJ761 |
