R/V Roger Revelle Global-Class, general-purpose research vessel capable of long-duration missions in extreme environments worldwide. R/V Sally Ride Ocean-Class, general-purpose research vessel. R/V Robert Gordon Sproul Regional general-purpose research vessel serves research and education missions offshore California and the US West Coast. FLIP The Floating Instrument Platform is a 355-foot-long manned spar buoy designed as a stable research platform for oceanographic research. Emeritus vessel: R/V Melville After a distinguished 45-year service life, R/V Melville was retired from the US Academic Research Fleet following her final cruise in September, 2014. Emeritus vessel: R/V New Horizon Intermediate-Class, general-purpose research vessel capable of working throughout the Pacific Ocean.