DEEP DIVER 



LENGTH: 22 ft 



BEAM: 5 ft 



HEIGHT: 8.5 ft 



DRAFT: 6.5 ft 



WEIGHT (DRY): 8.25 tons 



OPERATING DEPTH: 1,350 ft; lock-out 1,250 ft 



COLLAPSE DEPTH: 2,000 ft 



LAUNCH DATE: 1968 



HATCH DIAMETER: 23 in. 



LIFE SUPPORT (MAX): 32 man-hr 



TOTAL POWER: 23 kWh 



SPEED (KNOTS): CRUISE 2/4 hr 



MAX 3/0.5 hr 



CREW: PILOTS 1 



OBSERVERS 3 



PAYLOAD: 1,500 lb 



PRESSURE HULL: Forward hull, forward end cap, and diver's compartment are made of 0.5- in. rolled and welded T 1 steel. Forward compartment 

 and diver's cell are 54 in. thick. The transition shelf, connecting pilots and diver's compartment is 5/8tn.SA212 grade B steel, 55-in. OD, which is 

 welded directly to the diver's compartment. Conning tower is 28-in. OD made of 3/8 in. thick T 1 steel which increases to 0.5 in, at hull intersection. 

 Conning tower is 1 9 in. above top of hull. All hatches are of cast almag 35 and are impregnated. 



BALLAST/BUOYANCY: Main ballast tanks of 24.2-ft3 (845 lb) capacity are located port and starboard of the forward hull adjacent to the conning 

 tower and are made of 1 Vgage mild steel. The trim tanks may also serve as buoyancy control and hold 676 lb of seawater. The battery pod adds an 

 additional 1,500 lb of negative buoyancy which can be dropped in an emergency. The ballast tank vent valves are operated by a reach rod that 

 penetrates the pressure hull. 



PROPULSION/CONTROL: Main propulsion is a G.E. 10-hp, 1 ,150-rpm, 240- V, 48-amp motor contained in a pressure-compensated housing and is 



pivoted to swing 90 each side of dead center. A stern thruster, consisting of two right-handed propellers turning on a single 1-in. stainless steel shaft 



and driven by a 3-hp, 1 ,140-rpm, 1 20-V, 29-amp, DC, G.E. motor is mounted in a pressure-compensated container. This bow thruster is driven by a 



G.E., 3-hp, 1 ,750-3, 350-rpm, 120-V, 24-amp, DC motor which is shared with the trim tank pump and is mounted internally. The bow propulsion 



unit may be rotated through 360° in the vertical plane and serves as both horizontal and vertical thruster. 



TRIM: Two tanks provide trim: One in the pilot's compartment (365 lb) and one in the diver's compartment (375 lb). The pilot's tank is split into 



six sections and is pumped dry. The diver's trim tank is split into two sections and may be blown or pumped dry. The diver's tank provides negative 



buoyancy to partially compensate for the loss of weight when the divers leave the vehicle. 



POWER SOURCE: The mam power supply consists of four separate battery banks of thirty 12-V, lead-acid batteries. 92-amp-hr capacity each, at 



20-hr rate which are contained at atmospheric pressure in a droppable pod suspended under the pilot's compartment. The total water weight of the 



0.5-in. -thick steel (SA 212 grade B) pod is 1,500 lb. 



LIFE SUPPORT: O2 is supplied from five bottles at 2,200 psi of 338-ft3 total capacity. Two bottles regularly supply the pilot's compartment and 



three supply the diver's compartment, but provisions are made for any arrangement desired. The bottles are stored externally between the He sphere 



and diver's compartment. CO2 is removed by two scrubbers of Baralyme, 6 lb capacity each, in the pilot's compartment and one 12-lb capacity 



scrubber in the diver's compartment. Two blowers, of 24 cfm, force air through the scrubbers; three 12 VDC fans help circulate air throughout. A 



pre-mixed He-02 supply can be stored in the 0.5-in. -thick, T-1 steel, 49-in. OD sphere. Two hookah hose adapters for divers working outside are also 



carried. 



VIEWING: Twenty-one acrylic plastic viewports, 12 are double-acting and are 6-in. ID, 8-in. OD and of 2-in. (external) and 1.75-in. (internal) 

 thickness. The nine single-acting viewports a re 6-in. ID, 8-in. ODand 0.5 in. thick. 



MANIPULATORS None. 



SAFETY FEATURES: Main ballast and trim tanks can supply 845 lb and 676 lb of positive buoyancy when blown; a jettisonmg battery pod 

 provides 1,500 lb of buoyancy. Emergency breathing can be through scuba regulators from the main air system or by breathing pre-mixed gas 

 through hookah rigs. By pressurizing the boat, escape is possible through the diver's compartment. Flooding the boat allows escape through the 

 conning tower. Seawater-activated pinger, gas and electric power connections for supply from surface. Flares, life vests, anchor, dry chemical fire 

 extinguisher, external flashing light. 



SURFACE SUPPORT: Submersible is air, ship or truck transportable. It can be towed by or carried on a ship during operations. A crew of five is 



required for support of the submersible. The support ship must be a minimum of 1 00 ft LOA. 



OWNER: Marine Sciences Ctr., Ft, Pierce, Fla. 



BUILDER: Perry Submarine Builders, Riviera Beach, Fla. 



REMARKS: Decommissioned. Donated to Smithsonian Inst. On display at Link Park, Ft. Pierce, Fla. Originally designated PLC-4. 



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