Lightning: internal weapons?

[Archimedes]

Dean - in google images, search 'Lightning Microcell rocket pack'. You'll get some photos which demonstrate the fit.

It was an alternative to the missile pack (the Firestreak/Red Top package involved more than just mounting the missiles on the fuselage hardpoints/rails, there was a removable pack containing all the necessary gubbins to support the weapon, and a rocket pack could be fitted in here, with the launchers dropping down from the closed position for weapons release).

Someone will be along to put that into clearer English shortly...

Edit - Or, indeed, sooner thanks to the time lag on this ipad between pressing reply and the missive uploading...