DEEPSTAR 20000 



LENGTH: 36ft 



BEAM: 10.25 ft 



HEIGHT: NA 



DRAFT: NA 



WEIGHT (DRY): 42.5 tons 



OPERATING DEPTH: 20,000 ft 



COLLAPSE DEPTH: NA 



LAUNCH DATE: (construction halted in 1970) 



HATCH DIAMETER; 16 in. 



LIFE SUPPORT (MAX): 144 man hr 



TOTAL POWER: 



SPEED (KNOTS): CRUISE 2 



MAX 3 



CREW: PILOTS 1 



OBSERVERS 2 



PAYLOAD: 500 2,000 lb 



PRESSURE HULL: Spherical shape, 7-ft ID composed of HY-140 steel and weighing 12,414 lb. 



BALLAST/BUOYANCY: Syntactic foam (42-pcf) permanently installed main ballast system uses 3,000-psi air to blow tanks dry and provide 6,800 



lb of surface buoyancy. Descent weight of 300 lb dropped near the bottom provides neutral buoyancy. A bladder/hard tank system reduces 



displacement proportional to depth to compensate for buoyancy gained by hull rigidity. A 500-lb ascent weight is used to initiate ascent. The 



bladder/hard tank air system is also used for ±1 ,100- lb changes utilizing a hydraulic pump. 



PROPULSION/CONTROL: One 10-hp, AC motor drives a Varivec propeller mounted aft on centerline. One hydraulic pump driven by the same 



motor provides hydraulic power for vehicle hydraulics underway. 



TRIM: Mercury tanks fore and aft transfer 630 lb of mercury to obtain pitch angles of ±30 . 



POWER SOURCES: 120-VDC, silver-zinc batteries are carried externally and are pressure compensated. One 29-VDC auxiliary banery and one 



28-VDC emergency battery are carried in the pressure hull. 



LIFE SUPPORT: Gaseous O^. LiOH to remove COj. 



VIEWING: Two viewpoas, 4.5-in. 1 D, with overlapping field of view looking forward and down. One 2.25-in. ID camera port on centerline looking 



forward and down. 



OPERATING/SCIENTIFIC EQUIPMENT: Tape recorder, FM radio, velocity indicator, transponder, 70-mm still camera, 16-mm cine camera, water 



temperature sensor, side-looking sonar, two depth gages. 



MANIPULATORS: NA. 



SAFETY FEATURES: Surface lights, radio beacon. 



SURFACE SUPPORT: NA. 



OWNER: Westinghouse Ocean Research and Engineering Center, Annapolis, Md. 



BUILDER: Westinghouse Electric Corp. 



REMARKS: Major components completed and in storage, never assembled. 



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