SEA-RAY (SRD- 101) 



LENGTH; 20.5 ft HATCH DIAMETER: 23 in. 



BEAM: 5 ft LIFE SUPPORT (MAX): 24 man-hr 



HEIGHT: 5.5 ft TOTAL POWER: 15kWh 



DRAFT: 3.25 ft SPEED ( KNOTS) : CRUISE 4/4 hr 



WEIGHT (DRY): 4.5 tons MAX 6/2 hr 



OPERATING DEPTH: 1.000 ft CREW: PILOTS 1 



COLLAPSE DEPTH 5,000 ft OBSERVERS 1 



LAUNCH DATE: 1968 PAYLOAD: 400 1b 



PRESSURE HULL: Cylindrical shape with hemispherical endcaps, 3-ft diam., 17 ft long, 0.5-in. -thick steel. An 18-in.-high. 2-ft diam. conning 



tower joins the hull. 



BALLAST/BUOYANCY: Main ballast tanks for surface buoyancy. A separate tank which can be blown or pumped dry provides negative buoyancy 



to submerge. 



PROPULSION/CONTROL: A reversible, 2-speed, stem-mounted propeller provides all propulsion and it is driven by a G.E.. 5-hp, 900-rpm, 36-VDC 



motor. Rudder and dive planes are hydraulically-actuated. 



TRIM: Up/down bow angles can be obtained by transferring seawater between a fore and an aft tank. 



POWER SOURCE: Six, 12-V, 208-amp-hr, lead-acid batteries provide all power. The batteries are housed m a sealed compartment within the 



pressure hull. 



LIFE SUPPORT: Ot tank carried within the hull. CO2 is removed by soda sorb. Monitors for Oj. CO2 and a H2 detector. Silica gel carried to 



reduce humidity. 



VIEWING: Eight viewports 1.75 in. thick and 6-in. diam. Four are in the conning tower and four are in the bow. 



OPERATING/SCIENTIFIC EQUIPMENT: UQC, gyrocompass, two depth gages, still and cine cameras, TV. 



MANIPULATORS: One. 



SAFETY FEATURES: Hull may be pressurized with compressed air for underwater egress. External fitting for resupply of air underwater. 



Droppable keel. Negative tank can be blown or pumped dry at operating depth. 



SURFACE SUPPORT: SOO 



OWNER: Submarine Research and Development Corp., Lynnwood, Washington. 



BUILDER: Mr. E. Crosby, Edmonds, Washington. 



REMARKS: Operating. 



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