| Scarab IV | |||
| System description | |||
| The Scarab IV ROV system consists of the following major components: | |||
| A 150 electric HP ROV (2 X 75hp); main umbilical connecting the vehicle to the surface handling equipment; jetting skid; Launch and Recovery System (LARS) consisting of recovery crane, umbilical winch, Hydraulic Power Units (HPU), and the over boarding sheave; the Control Van (CV) which houses the Power Distribution Unit (PDU) and the control consoles; and a Maintenance Van. | |||
| Electric Power for the consoles and the vehicle is provided by a dedicated generator. Two generators are supplied for this purpose. In certain cases, the power supply can be provided by ship's power. The power supplied is 460 VAC, 3-phase, 60 Hz. | |||
| The vehicle components are controlled from the surface console through telemetry electronics located in the Telemetry Can on the vehicle. Telemetry and video signals are transmitted from the vehicle to the surface for display on the console monitors via optical fibers in the main umbilical. | |||
| The vehicle is raised and lowered with its latch probe mechanism system using a crane. The crane, umbilical storage drum, level-wind unit, hydraulic power and control unit comprise the surface handling equipment of the Scarab IV system. | |||
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| The Scarab IV vehicle has an aluminum frame which is painted flat black and supports eight (8) thrusters, two (2) manipulators, fire pump, and various instruments. In its standard configuration the vehicle is equipped with ten (10) lights, four (4) pan and tilt units, three(3) B&W SIT cameras, one color camera, depth transducer, compass, sonar, long-range altimeter, short-range altimeter, pitch and roll sensors, responder/transponder, emergency transponder, radio beacon, strobe, and an Innovatum cable tracking system. A jetting skid is bolted to the underside of the vehicle's frame. System spares are provided in a Maintenance Van. | |||
| The Scarab IV System incorporates state-of-the-art technology for enhanced performance and ease of maintenance. All of the features which make the Scarab IV an advanced ROV system have been proven in the field. | |||
| Scarab IV System Weights & Dimensions (pdf) | |||
| System speifications | ||||
CONTROL VAN |
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Length |
20 feet |
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Width |
8 feet |
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Height |
8.5 feet |
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Weight |
15,500 lbs |
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CONSOLES (Nominal Dimensions and Weight) |
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Pilot's Console |
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Length |
34.75 inches |
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Width |
28.25 inches |
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Height |
65.25 inches |
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Weight |
283 lbs |
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Console #2 |
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Length |
26.25 inches |
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Width |
36.0 inches |
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Height |
65.25 inches |
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Weight |
229 lbs |
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Tool Operator's (Navigator's) Console |
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Length |
34.75 inches |
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Width |
28.25 inches |
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Height |
65.25 inches |
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Weight |
288 lbs |
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Console #4 |
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Length |
26.25 inches |
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Width |
22 inches |
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Height |
65.25 inches |
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Weight |
405 lbs |
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Supervisor's Center Console #1 |
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Length |
22 inches |
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Width |
22 inches |
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Height |
32 inches |
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Weight |
152 lbs |
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Remote Observation Center |
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Length |
22 inches |
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Width |
22 inches |
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Height |
30 inches |
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MAINTENANCE VAN |
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Length |
20 feet |
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Width |
8 feet |
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Height |
8.5 feet |
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Weight |
18,000 lbs |
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GENERATOR #1 |
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Length |
150 inches |
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Width |
55 inches |
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Height (without muffler) |
94 inches |
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Weight |
10,000 lbs |
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Ratings |
200 Kw, 250 KVA |
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GENERATOR #2 |
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Length |
150 inches |
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Width |
55 inches |
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Height (without muffler) |
94 inches |
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Weight |
9,000 lbs |
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Ratings |
200 Kw, 250 KVA |
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VEHICLE |
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Length |
135 inches |
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Width |
82 inches |
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Height |
77 inches |
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Weight in air |
9,663.2 lbs |
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Structure |
6061-T6 Aluminum shapes with Stainless Steel fasteners |
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Diving Depth |
1,800 meters |
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Flotation (Fixed) |
Syntactic Foam |
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Payload |
911 lbs (nominal) |
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Propulsion |
Electro-Hydraulic (2 X 75hp) |
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Thrusters |
8 X Hydraulic |
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Power Requirements |
2500 VAC, 3 - Phase, 60 Hz - Motors |
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Transformer |
Western Transformers |
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Control |
GESPAC Telemtery System |
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Cameras |
3 X B&W, Wide angel SIT, 1 Color Standard Lens |
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Sonar |
Mesotech, Model 971 |
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Compass |
Fluxgate KVH Industries |
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Depth Transducer |
Paroscientific 8B2000 |
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Pitch & Roll |
Sperry Acustar 02338-03 |
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Altimeters |
Mesotech 807 |
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Oil Pressure Transducer |
Data Instruments, Model SA |
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Strobe |
Navatech |
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Cable Tracker |
Innovatum |
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Responder/Transponder |
Nautronix |
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Emergency Transponder |
Nautronix |
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Lights |
10 X 250 Watt, ROS QL 3000 |
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Radio Beacon |
Novatech |
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Manipulator |
2 X 7 Function 5 SC Magnum |
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Fire Pump |
Stanley SM23B |
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JETTING SKID |
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Length |
148 inches |
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Width |
82 inches |
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Height |
36 inches |
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Weight in Air |
3000 lbs (nominal) |
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Structure |
6061-T6 Aluminum shapes with Stainless steeel fasteners |
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Floatation (fixed) |
Syntactic foam blocks |
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CABLE GRIPPER |
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Length |
23.03 inches |
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Width |
6.00 inches |
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Height |
12.24 inches |
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Weight |
122 lbs |
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CABLE CUTTER |
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Length |
23.12 inches |
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Width |
6.00 inches |
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Height |
23.98 inches |
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Weight |
94 lbs |
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WINCH |
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The Winch is comprised of three (3) major sub-assemblies; the Umbilical Storage Drum, Level-wind, and Hydraulic Power Unit |
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Capacity of Drum |
7,000 feet 0f 1.43" cable with 3" flange remaining |
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Line Pull |
22,500 lbs continuous with bare drum;15,000 lbs. @ full drum |
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In-Haul/pay-Out Rate |
150 fpm at mid-drum |
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Electric Power |
440/480 VAC, 3-Phase, 60 Hz, 180 Amps full load |
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Drum Dimensions: Lebus Drum: Core Diameter Core Width Flange Diameter
Overall Width Length Height |
55 inches 138 inches 78 inches
96 inches 127.5 inches 84 inches |
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Weight of Winch with Umbilical |
35,000 lbs |
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Weight of Hydraulic Power Unit & Levelwind |
15,500 lbs |
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RECOVERY CRANE |
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The Recovery Crane assembly is an articulated or knuckle boom crane consisting of the Crane, a constant Tension Winch, and the Swing Frame. |
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Capacity |
28,000 lbs with 30 ft Extension, 360 deg Slew |
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Weight of Entire Assembly |
41,000 lbs (nominal) |
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Constant Tension Winch; Primary Drive Lift Rating Constant Tension Mode |
44,000 lbs @ 100 fpm 1,500 lbs @ 450 fpm |
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UMBILICAL |
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Length |
7,150 feet (nominal) |
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Diameter |
1.43 inches |
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Weight in Air |
18,733 lbs |
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