1. Acrylic Cabin
The Ocean Pearl cabin provides a one atmosphere environment to 2occupants and consists of two identical acrylic hemispheres mounted on to their respective upper and lower aluminum rings. The cabin rings are hinged at the front of the vessel and the upper hemisphere tilts open like a clam-shell for easy embarking and disembarking.

2. Port & Starboard Flotation Bladders
The Port and Starboard flotation bladders allow the vessel to float high above the water line and provide a freeboard of greater than 30 inches. Each bladder compartment has a backup Reserve Bladder that can be inflated in case the main bladder is faulty. These bladders are only used on surface and remain fully deflated when underwater.

3. Tail Buoyancy Foam
The tail section of the vessel is foam filled and provides the necessary buoyancy that keeps the craft in a horizontal pitch on surface and underwater.

4. Handrail & Light Mounting Cage
The submersible’s cabin is surrounded by an aluminum cage that acts as a hand rail for occupants to board the craft and also as a mounting structure for the underwater lights and their pan & tilt assemblies

5. Forward Looking Sonar
The Ocean Pearl is equipped with forward-looking sonar mounted at the front of the vessel and used for obstacle avoidance. The forward-looking sonar data is presented on the cabin’s onboard computer monitor.

6. Drop Weight Assembly
The submersible is equipped with 220lbs of lead weight that can be dropped in case of loss of buoyancy when underwater. The drop weight represents the loss of buoyancy that would occur in case the largest floodable volume was compromised. The drop weight is activated mechanically from inside the cabin.

7. Port & Starboard Aft Thrusters
The two aft thrusters are fixed and are controlled by the pilot joystick. The trusters push or pull making the craft go forward or reverse and also rotate on the spot.

8. Permanent Lead Ballast
The shaped lead blocks underneath the flotation balder cylinders contribute to the total weight necessary for the craft to submerge and are located such as to ensure proper pitch when underwater.

9. Cabin Gas Springs
The gas spring assemblies on both sides of the cabin help open the upper hemisphere once the latch is turned open.

10. Cabin Latch
The Triumph cabin has a latch system that in conjunction with the front hinge close the upper and lower rings together. The cabin seal is achieved by compressing the hard and soft seals located in the upper ring between the two rings. The cabin latch can be opened or closed from either the inside or outside of the cabin.

11. USBL Transponder
The USBL (Ultra Short Baseline) Transponder when turned on send an acoustic ping to the surface transceiver mounted topside. This transponder is detected by topside and provides topside to locate the submersible at all times.

12. Underwater Lights
The ocean pearl can be equipped with up to 5 lights. Mounted are four 70W HID lights each controlled ON/OFF individually from the cabin.

13. Ballast Lead Compartments
The Ocean Pearl’s payload is normalized prior to each dive to 500lbs. All occupants are weighed prior to a dive and the difference in weight is compensated with lead sacks dropped in the lead weight compartments through these access hatches. 

14. Vertical Thruster
Located at the center of gravity of the vessel, the vertical thruster forces the craft to go up or down and used for depth control. The vertical thruster is activated by the cabin’s joystick switches located on the grip.

15. External Diver Station
This optional external diver station allows the operator to pilot the craft from the exterior and allow for two untrained occupants to be in the cabin. When activated, the external diving station has the master controls. The external diver is to be on SCUBA and a full-face mask connected in the submersible.

16. Air Ballast Tanks
The submersible is equipped with two 120cuft SCUBA air tanks (@2400psi) on each side of the vessel and are used for re-inflating the flotation bladders (port, and star) that lift the vessel back to surface mode. Furthermore, the air tanks are used for the BCD (Buoyancy Control Device) that allows the pilot to adjust the vessel’s buoyancy while underwater. These two air tanks are independent of each other and offer full redundancy. One full tank is used each time the flotation bladders are re-inflated.

17. Electronic Pod
The Electronic Pod contains all the high power electronics of the submersible and also acts as the main input/output port for the external devices controlled from inside the cabin. Therefore, the battery pod power banks and the Cabin control signals are routed to the Electronic Pod from which the thrusters and external devices are activated.

18. Buoyancy Foam Block
This foam block is in addition to the tail section foam to ensure sufficient buoyancy is provided at the aft section of the craft and adjust the pitch to be horizontal.

19. Battery Pods
The two battery pods hold all the batteries of the vessel. These battery pods are dry pressure vessels and routed to the Electronic Pod where the high voltage electronics is handled.