The U.S. Navy successfully concluded its final alternative fuel demonstration for the year today with the Dec. 7-9 operational tests of the 50/50 algae-derived, hydro-processed algal oil and petroleum F-76 blend in a Landing Craft, Air Cushion (LCAC) amphibious transport vehicle at Naval Surface Warfare Center Panama City. The tests also marked the fastest speed achieved to date by a U.S. Navy surface craft using alternative fuel blends, as LCAC 91 reached speeds the crafts maximum speed of 50 knots, Dec.