Started drawing above BH.7 Mk 6 hovercraft.
I borrowed the prop tower from the old SR.N4 we had in the archive, since according to Flight Global the SR.N4 had four towers from BH.7 Mk 4(they shared Proteus engines).
I have never seen that OTO Melara cover, can someone provide sources for that?
I added also an artistic impression of BH.7 Mk 6 above which I have found.