- 1970sThe Decade of Advanced Technological Improvements
- 1970 April 1
Work begins on the preliminary design of a 50-knot, 45-ton C30-50 air cushion Amphibious Assault Landing Craft for the U.S. Navy.
- 1971 March 8
The U.S. Naval Ship Systems Command selects the design, construction and test of an experimental 50-knot, 160-ton air cushion LC JEFF(B) Amphibious Assault Landing Craft.
- 1971 October 4
Final assembly begins on the first Voyageur heavy haul air cushion vehicle. Voyageur 001 starts operational test programming in December and begins major ten-day Army/Navy offshore logistics exercises involving the transport of MILVAN containers from ship to shore in Fort Eustis, Va. in September 1971.
- 1973 March 1
SES-100B attains speeds of more than 70 knots in Lake Pontchartrain tests - a world record for this type craft.
- 1973 March 12
Successful model testing of the Viking Air Cushion Vehicle is announced.
- 1976 March 15
The first of two LACV-30s (Lighter, Amphibious Air Cushion Vehicles 30-ton payload) is completed for the U.S. Army.
- 1977 April 7
The U.S. Navy announces completion and rollout of the first JEFF(B) amphibious assault landing craft.
- 1978 January 8
The LACV-30 craft completes surf tests at Camp Pendleton in California. While expanding the entry angle envelope at high gross weight, the craft takes a steep 7- to 8-foot wave broad on the bow at 20 miles per hour, successfully demonstrating surf performance.
- 1979 August 14
Successful operational demonstrations of the 160-ton JEFF(B) are carried out at Tyndall Air Force Base and Naval Coastal Systems Center. More than 30 government and contractor organizations are involved. The ship is maneuvered in and out of the well deck of a Landing Ship Dock and achieves an overwater speed of 62 knots while carrying a full load including a main tank, a jeep and Marine troops. The JEFF(B) maneuvered through simulated war conditions on shore, including exploding mines and traversed sand dunes as high as 10 feet.