Le tir des missiles antiradar Kh-25MP (AS-12 "Kegler") et Kh-27PS (AS-12 "Kegler" également) nécessitait l'emport du conteneur d'acquisition et d'identification des émissions radar Vyouga, tel que celui-ci vu sous un MiG-27K du 559.APIB de Finsterwalde. Ces deux types de missiles avaient une tête chercheuse différente, mais ils étaient extérieurement très semblables.

This MiG-27K of the 559.APIB from Finsterwalde was carrying a Vyuga pod. The latter was a radar emissions receiver and identification system necessary to feed the missile systems with all the data required for the launch of a Kh-25MP (AS-12 "Kegler") or Kh-27PS (AS-12 'Kegler' as well) antiradar missile. Both missile types had different seeker heads but looked very similar externally.