Soko initially assembled locally two versions of Westland Whirlwind (HAR.5 & HAS.7) for the Yugoslav Air Force and Navy respectively before commencing license production of the Whirlwind Ser.2 as the S-55-5.
| C/N | Built as | Year | History |
| WA9-10-2319 | | |  11714 : Soko S-55-5, c/n WA9-10-2319, ff:?; del Yugoslav Air Fo+
|
|  | | | 11712 : Soko S-55-5, c/n ???, ff:?; del Yugoslav Air Force as 1+
|
| | | | 11713 : Soko S-55-5, c/n ???, ff:?; del Yugoslav Air Force as 1+
|
| | | | 11715 : Soko S-55-5, c/n ???, ff:?; del Yugoslav Air Force as 1+
|
| | | | 11716 : Soko S-55-5, c/n ???, ff:?; del Yugoslav Air Force as 1+
|
| | | | 11717 : Soko S-55-5, c/n ???, ff:?; del Yugoslav Air Force as 1+
|
| | | | 11718 : Soko S-55-5, c/n ???, ff:?; del Yugoslav Air Force as 1+
|
| | | | 11719 : Soko S-55-5, c/n ???, ff:?; del Yugoslav Air Force as 1+
|
| | | | 11720 : Soko S-55-5, c/n ???, ff:?; del Yugoslav Air Force as 1+
|
| | | | 11721 : Soko S-55-5, c/n ???, ff:?; del Yugoslav Air Force as 1+
|
| | | | 11722 : Soko S-55-5, c/n ???, ff:?; del Yugoslav Air Force as 1+
|
| | | | 11723 : Soko S-55-5, c/n ???, ff:?; del Yugoslav Air Force as 1+
|
| | | | 11724 : Soko S-55-5, c/n ???, ff:?; del Yugoslav Air Force as 1+
|
| | | | 11725 : Soko S-55-5, c/n ???, ff:?; del Yugoslav Air Force as 1+
|
| | | | 11726 : Soko S-55-5, c/n ???, ff:?; del Yugoslav Air Force as 1+
|
| | | | 11727 : Soko S-55-5, c/n ???, ff:?; del Yugoslav Air Force as 1+
|
| | | | 11728 : Soko S-55-5, c/n ???, ff:?; del Yugoslav Air Force as 1+
|
| | | | 11729 : Soko S-55-5, c/n ???, ff:?; del Yugoslav Air Force as 1+
|
| | | | 11730 : Soko S-55-5, c/n ???, ff:?; del Yugoslav Air Force as 1+
|
| | | | 11731 : Soko S-55-5, c/n ???, ff:?; del Yugoslav Air Force as 1+
|
| | | | 11732 : Soko S-55-5, c/n ???, ff:?; del Yugoslav Air Force as 1+
|
21 C/N.