SUBMANAUT 



LENGTH: 43 ft 



BEAM: 10.75 ft 



HEIGHT: 16ft 



DRAFT: 9 ft 



WEIGHT (DRY): 50.5 tons 



OPERATING DEPTH: 600 ft 



COLLAPSE DEPTH: NA 



LAUNCH DATE: 1956 



HATCH DIAMETER: 34 in. 



LIFE SUPPORT (MAX): 300 man-hr 



TOTAL POWER; 91 kWh 



SPEED (KNOTS): CRUISE 3/20 hr 



MAX 4.5/10 hr 



CREW: PILOTS 2 



OBSERVERS 4 



PAYLOAD: 4,500 lb 



PRESSURE HULL: Cylindrical shape, constructed of an inner and outer hull 9/16 in. thick, 10/30 carbon steel, welded, air-peened and stress 



relieved. Honeycomb reinforcement between hulls. Conning tower is 1 .0-in.. thick rolled steel. 



BALLAST/BUOYANCY: To obtain ± buoyancy there are four hull tanks (346 gal ea.) and two keel tanks (140gal ea.). Tanks may be emptied by 



pumps (high & low pressure systems) or compressed air. Fine buoyancy control is obtained by adding or subtracting water from smaller tanks, 945 



gal are required to submerge leaving 5-35 gal to obtain negative buoyancy. Ballast pumps are: a 10-hp, 80 gpm at 300 psi (high pressure) and a 5-hp, 



400-gpm at 25 psi (low pressure). 



PROPULSION/CONTROL: Main propulsion is provided by a stern-mounted, 38 in. x 34 in. propeller. Underway maneuvering is obtained through a 



rudder and dive planes. 



TRIM: No systems provided. 



POWER SOURCE: Surface. General Motors, 6-cylinder diesel engine developing 235 hp. Submerged: lead-acid batteries in each "leg" are in 



pressure- resistant cases. There is a 1 15-V bank in each leg with a total of nineteen 12-V units of 400-amp-hr capacity. Batteries are recharged on the 



surface by the diesel engine. 



LIFE SUPPORT: Two tanks containing 200 ft' of O2 are carried within the pressure hull. Three circulating blowers with attached soda lime 



cannisters are used to remove C02- Two bunks are available. 



VIEWING: Three, 2.5-in.-thick, Plex R (Rohm 81 Haas) wrap-around windows are on the forward hemihead; they are two 17 in. x 48 in. and one 17 



in, X 16 in. all on a 51-in. radius in the same horizontal plane. Conning tower has one window 20 in. x 14 in., 3 in. thick, on a 20-in. radius. Six 



additional glass (crown optical) viewports, 6 in. thick, 7-in. OD and 5.75-in. ID, are located throughout the vehicle. 



OPERATING/SCIENTIFIC EQUIPMENT: Gyrocompass with three repeaters, depth sounder, radio telephone. 



MANIPULATORS: None. 



SAFETY FEATURES: The entire keel ("legs") section is manually releasable and totals 3,240 lb. Dry chemical fire extinguisher, life vests. 



SURFACE SUPPORT; Independent operation. 



OWNER: Uncertain, as of August 1968 vehicle was owned by Submarine Services Inc., Coral Gables, Fla. 



BUILDER: Martine's Diving Bells Inc., San Diego, Calif 



REMARKS: Not operating. 



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