DSRV-1 & 2 (DEEP SUBMERGENCE RESCUE VEHICLE) 



LENGTH: 49.3 ft 



BEAM: 8.1 ft 



HEIGHT: 11 .4 ft 



DRAFT: 10.75 ft 



WEIGHT (DRY): 37.35 tons 



OPERATING DEPTH: 5,000 ft 



COLLAPSE DEPTH; 7,500 ft 



LAUNCH DATE: 1970 & 1971 



HATCH DIAMETER: 25 in. 



LIFE SUPPORT (MAX): 729 man hr 



TOTAL POWER: 58 kWh 



SPEED (KNOTS): CRUISE 3/12 hr 



MAX 4.5/3 hr 



CREW: PILOTS 3 



OBSERVERS 24 (Rescuees) 



PAYLOAD: 4,320 lb 



PRESSURE HULL: Three 7.5-ft diam., 0.738-in. -thick, interconnected, HY-140 steel spheres contained within a formed fiberglass fairing. Forward 



sphere is for operators; aft spheres are for rescuees (24 total). Two hatches are in mid-sphere; one topside is for surface access, one on bottom 



enclosed by skirt is for rescuees to enter. 



BALLAST /BUOYANCY: Four saddle tanks (748 gal-6,400 lb total) provide freeboard on surface. Fore and aft tanks (123.4 gal-1 ,060 lb total) 



provide variable buoyancy control. Four collapsible bags in each sphere (478 gal-4,080 lb total) compensate for weight of rescuees. Fore and aft 



tanks (713.6 gal — 5,664 lb total) are used to store water pumped from rescue skirt. 



PROPULSION/CONTROL: Forward propulsion by a stern-mounted, reversible 4.ft diam. propeller driven by a 15-hp, AC motor. Two each vertical 



and horizontal ducted thrusters (fore & aft-mounted), each driven by a 7.5.hp, AC, electric motor. Shroud around stern propeller can be tilted to 



control yaw and pitch. 



TRIM: Up and down bow angles can be obtained by transferring part of the 1,428 lb of mercury carried in forward/aft tanks (36.5 gal total). Port 



and starboard tanks located above centerline provide list control by transferring 6 gal of mercury (440 lb). A similar tank located low on the 



centerline amidships can control BG by mercury transfer from list tanks. 



POWER SOURCE; Two pressure-compensated, silver-zinc batteries weighing 2,000 lb each supply 56 kWh apiece at 112 VDC for main propulsion. 



A similar system plus inverters and converter are available for ±28 VDC and 115 VAC at 400 cycle. A 28 VDC silver-zinc battery (115 kWh) is 



available for emergency. 



LIFE SUPPORT: Separate support for forward sphere and mid/aft spheres. COt is controlled by LiOH. Closed loop emergency breathing systems 



are available for 28 people. An air conditioning system controls humidity and heat. 



VIEWING: Five viewports are available: Two in the forward sphere (4-in. diam.), one looks forward and down 30°, one looks 140° to starboard and 



30° down from the horizontal. Two (4-in. diam.) in mid-sphere look 70° to port and starboard and 50° down from the horizontal. One in 



mid-sphere lower hatch looks directly down and is 3 in. in diam. 



OPERATING/SCIENTIFIC EQUIPMENT: UQC (8.087 kHz), CTFM sonar, vertical sonar, altitude/depth sonar, Doppler sonar navigator, sound 



velocimeter, tracking transponder for DSRV, transponder navigation system, two TV cameras, side scan sonar, 16-mm cine camera, two 35-mm still 



cameras. 



MANIPULATORS: One manipulator with seven degrees of freedom on forward sphere. 



SAFETY FEATURES: The following is jettisonable: Manipulator, downhaul winch cable, pan and tilt camera units, magnetic anchors. 



SURFACE/SHORE SUPPORT: Air, ship, truck, submarine transportable. 



OWNER: U.S. Navy Submarine Development Group One, San Diego, California. 



BUILDER: Lockheed Missiles & Space Corp., Sunnyvale, California. 



REMARKS: Undergoing test and evaluation. Both vehicles are built to the same specifications. DSRV-1 is presently rated at 3,500 ft, but will 



eventually reach the 5,Q00-ft operating depth of DSRV-2. 



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