ACRS K-1 ROV
Oceaneering International, Inc. (OII) is a recognized leader in designing and building remotely operated vehicles (ROVs) with a world wide fleet of over 125 ROVs. OTECH, a division of OII, fielded the ACRS K-Seriesas a work-class ROV purpose-designed for deep sub-sea fiber optic cable burial and retrieval. The ACRS K-1 (K1) maximizes the technology and experience gained from over three decades of designing, manufacturing, and fielding sub-sea systems. The K-1 was designed for reliability, maintainability, and an aggressive operational tempo in deep water cable burial.
The K-1 is a 400 HP work-class cable maintenance vehicle. The system consists of a free-flying ROV with a detachable jetting skid capable of operating in depths up to 3000 msw (9,842 fsw) and cable burial up to 1 meter in depth. The K-1 is equipped with dual manipulators and a host of tooling packages common to cable maintenance operations. It employs a microprocessor-based PC 104 telemetry system to minimize maintenance, decrease set-up time, simplify troubleshooting, and provide additional automatic control functions. Fiber optics are used as the primary transmission link for all video signals between the vehicle and the surface control console, providing the finest quality video available in ROV technology.
Throughout the development of the ACRS K-Series ROVs, special attention was paid to EPA, Coast Guard, Navy, and ABS standards. From ABS-witnessed load tests to a hydraulic system designed to run with environmentally friendly hydraulic fluid, a philosophy of adapting proven technology to emerging requirements enabled OTECH to push the operational envelope while maintaining expectations for quality and value.
ACRS Major Elements
- ROV (200 HP)
- Jetting Skid (200 HP)
- Control Van (Control Consoles (5-Bay))
- Telemetry and Control System
- Fiber Optic System
- Power Distribution Unit (PDU) (Including 1400V ROV/Skid
- Electronics Topside
- Transformer & 120V Console Electronics Transformer)
- Motor Transformer (3200 VAC, 3 phase, 450 KVA)
- Deck Junction Box
- Handling System (Winch, HPU, Universal Docking Module, AFrame, Heave Compensator)
- Deck Cradle
ACRS K-1 General Specifications
- Length 3.3 m (10.8 ft)
- Width 2.1 m (6.8 ft)
- Height 3.2 m (10.5 ft)
- Weight 8618 kg (19,000 lb)
- Payload/Trim 680 kg (1500 lb)
- Depth Rating 3000 msw (10,000 fsw)
- Forward Speed 2.3 m/s (4.5 kt) +
- Lateral Speed 1.5 m/s (3 kt) +
- Maximum Vertical Thrust 1361 kg (3000 lbf)
- Operating Current 1.5 m/s (3 kt)
- Operating Seas SS 6
- Launch & Recovery Seas SS 5
Cable Burial Performance
- Soft Clay/Sand 450 m/hr (1476 ft/hr)
- Firm Clay/Sand 200 m/hr (656 ft/hr)
- Burial Depth 1 m (3.3 ft)
- Repeater Size 200 mm (8 in.)