The US Navy still uses a variant of this called the The LACV-30 (Lighter Air Cushion Vehicle, 30 tons)
The LACV-30 was derived from the civilian Bell Voyageur air-cushion vehicle (hovercraft).
https://en.wikipedia.org/wiki/LACV-30
On a side note the Canadian Cost Guard still uses Hovercraft for sea search rescue. They currently have three AP1-88 ACV AP1-88 Air Cushion Vehicle
CCGS Mamilossa
CCGS Moytel
CCGS Siyay
An additional Type 400 was also in service CCGH Penac which served in the Coat Guard from 1984-2017