Hovercraft Freighter

[Michel Van]

found this page over Hovercraft concepts
http://www.bartiesworld.co.uk/hovercraft/index.htm

and this Hover Freighter
BHC concept from 1970 for a 4,000 ton "hoverfreighter"
maximum speed over calm water 50kts (92km/hr)
maximum range of about 500 Nm (920km)

were there other companies proposed also Hovercraft freighters ?

 

[Just call me Ray]

Is 4,000 t its empty weight or total max displacement?