In the 70s, the potential for hovercraft was unknown and there were many types being developed. The BHC-7 was a military design that was tested by the British Interservice Hovercraft Trials Unit. It went through a variety of modifications as different roles were evaluated. I think some were exported but the UK never bought any more of them. However, the thing that I found amusing was that, because the Navy were involved in operating it, there was a wardroom.
It might not be the most glamorous of locations and I suspect other warships have nicer wardrooms. The sofas looked a little rough and the tea facilities were basic. However, it is fun to see that the important things were taken care of while the trials programme was underway.