Attached: 1 image @IvanRManuel@mstdn.social excellent questions. The FLIP ship could have missions about a month long. The whole idea around FLIP was to have 300 ft (91 m) of the hull submerged, and sensors could be all along that depth (plus winches on the surface could deploy sensors much deeper). It was all about stability because most of the mass was below water. They joked about it being "world's largest spar buoy". Not sure about movie night (it was rather spartan) . Details here: https://scripps.ucsd.edu/ships/flip