Gentlemen!
It's true that the weapon platform for Wessex HAS.1 commando helicopter has design, different from the late Wessex HU.5? I saw only few poor quality photos of HAS.1 with platforms and I think that they have two weapon suspension units above for FFMG or 2-in rocket launchers and to two bellow for ATGM, but I'm not exactly sure.
Regards, Andrey
