The decommissioned Spruance-class destroyer ex-USS Paul F. Foster (EDD 964), in 2011, conducting a successful demonstration of shipboard alternative fuel use while underway in the Pacific Ocean on a 50-50 blend of an algae-derived, hydro-processed algal oil and petroleum F-76. Paul F. Foster had been reconfigured as the Self-Defense Test Ship to provide the Navy an at-sea, remotely controlled, engineering test and evaluation platform without the risk to personnel or operational assets.