SURV 



LENGTH: 10.9 ft 



BEAM: 6.3 ft 



HEIGHT: 9.5 ft 



DRAFT: NA 



WEIGHT (DRY): 6.1 tons 



OPERATING DEPTH: 600 ft 



COLLAPSE DEPTH: 4,800 ft 



LAUNCH DATE: 1967 



HATCH DIAMETER NA 



LIFE SUPPORT (MAX): 100 man-hr 



TOTAL POWER: 12 kWh 



SPEED (KNOTS): CRUISE 0.5/9 hr 



MAX 2.5 



CREW: PILOTS 1 



OBSERVERS 1 



PAYLOAD: 250 lb 



PRESSURE HULL: Cylindrical shape with "dish" endcaps composed of mild steel plate to BS 1 501/1 51 8. Cylinder is 1- Vs in. thick; upper endcap 



is 1.5 in. thick; lower endcap is 1 S/g in. thick. Total length 6.5 ft, ID of 5 ft. 



BALLAST/BUOYANCY: Three free-flooding tanks within fiberglass fairing around pressure hull provide surface buoyancy of 850 lb. They are 



blown by a 275-ft-'-capacity, 2,500-psi air tank. Tanks may be blown at 600-ft depth. Two trim tanks of ±40-lb capacity located aft of the pressure 



hull provide submerged buoyancy control. An identical backup blowing system is carried. 



PROPULSION/CONTROL; Lateral propulsion is provided by two (port/starboard), variable-speed, 2.5-hp each motors. The motors are rotatable to 



provide any angle beyond 5 in the vertical. 



TRIM: No systems. 



POWER SOURCE: Lead-acid batteries (146-V) carried in five pressure-resistant cases. 



LIFE SUPPORT: O2 is supplied by two, 40-ft-^, 1 ,850-psi tanks within the pressure hull and is manually controlled. CO2 is absorbed in four soda 



lime cannisters of 3.5-lb capacity each. O2 and COj partial pressures are constantly displayed. An alarm system is automatically activated if CO2 



exceeds 1% or O2 departs from 20% to 24%. 



VIEWING: Ten plastic viewports in pressure hull are 2.25 in. thick; 7-in. OD and 4-in. ID. Three smaller viewports are located around the conning 



tower. 



OPERATING/SCIENTIFIC EQUIPMENT; UQC, hard-line telephone (shallow depth), gyrocompass, rate-of-turn indicator, pressure depth gage, 



up/down echo sounder, speedometers, temperature gage. 



MANIPULATORS: None. 



SAFETY FEATURES: Portable emergency breathing sets (40 ft-' of air ea.) are provided. Jettisonable weights (850 lb). Main ballast tanks can b( 



blown at operating depth. Pressure hull can be flooded for personnel egress. 



SURFACE SUPPORT: SOD. 



OWNER: Lintott Engineering Ltd., Horsham, England. 



BUILDER: Same. 



REMARKS: Retired 1969. 



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