LARS

The ROV Launch and Recovery System (LARS) controls the release and recovery of the umbilical cable, enabling underwater equipment to move from the mother vessel to overboard (or vice versa). This system facilitates the launch and recovery of underwater equipment between the deck and the water surface. The system consists of three main modules: the A-frame, winch, and HPU. The entire system is designed according to DNV standards and has obtained DNV classification certification, allowing stable operation in sea conditions up to Sea State 6. The entire operation is conducted via wireless remote control, ensuring ease of operation, efficiency, and safety.

Description

The ROV Launch and Recovery System (LARS) controls therelease and recovery of the umbilical cable, enabling underwater equipment tomove from the mother vessel to overboard (or vice versa). This systemfacilitates the launch and recovery of underwater equipment between the deckand the water surface. The system consists of three main modules: the A-frame,winch, and HPU. The entire system is designed according to DNV standards andhas obtained DNV classification certification, allowing stable operation in seaconditions up to Sea State 6. The entire

operation is conducted via wireless remote control,ensuring ease of operation, efficiency, and safety.


Features

• The snubber can be designed with six functions based on actual workingconditions: heave, pitch, roll, compression, locking, and telescoping, ensuringreliable operation in harsh marine conditions.

• It features two modes for cable handling: automatic and manual. Pairedwith a winch drum with a dual-fold line groove (LEBUS), it ensures theumbilical cable is neatly and tightly arranged.

• Equipped with both remote waist-mounted controllers and a local controlpanel, enabling remote and local control options.

• Includes cable payout and retrieval counting functions, as well aspressure monitoring, allowing real-time tracking of descent depth and loadweight.

• The hydraulic power unit uses a dual-motor, dual-pump drive system, with asingle motor capable of retrieving or deploying the ROV.

• The A-frame can be customized in modular or telescoping designs, savingtransportation dimensions and deck space.

Specifications

3.1 A-frame

8T A-frame(fixed)

Item Parameter
Safety Working Load 8 t
Dimensions (L×W×H) 7,200 × 3,235 × 5,400 mm
Expanded Dimensions 4,500 mm
Width between Pillars 2,355 mm
Snubber Pitching, rotating, clamping, locking


8T A-frame (telescopic)
Item Parameter
Safety Working Load 8 t
Dimensions (L×W×H) 6,200 × 3,000 × 7,020 mm
Expanded Dimensions 4,000 mm
Width between Pillars 2,400 mm
Snubber Pitching, rotating, clamping, locking

11T A-frame (telescopic)
Item Parameter
Safety Working Load 11 t
Dimensions (L×W×H) 7500 × 3390 × 6890 mm
Expanded Dimensions 4000 mm
Width between Pillars 2470 mm
Snubber Rolling, pitching, rotating, clamping, locking


3.2 Winch

8T Armored Cable Winch

Item Parameter
Safety Working Load 6.5 t
Capacity 1,200 m(37 mm Umbilical)
Weight (without Umbilical) 8.8 t
Dimensions (L×W×H) 3,300 × 2,500 × 2,760 mm
Static Brake 16 t


11T Armored Cable Winch11T Armored Cable Winch
Item Parameter
Safety Working Load 11 t
Capacity 3,600 m(37 mm Umbilical)
Weight (without Umbilical) 21 t
Dimensions (L×W×H) 4,550 × 3000 × 3370 mm
Static Brake 22 t


12T Armored Cable Winch
Item Parameter
Safety Working Load 12 t
Capacity 3,000 m(106 mm Umbilical)
Weight (without Umbilical) 80 t
Dimensions (L×W×H) 12,600 × 6,500 × 4,200 mm
Static Brake 24 t

34T Flexible Cable Winch
Item Parameter
Safety Working Load 34 t
Capacity 480 m (83 mm umbilical cable×6)
Weight (without Umbilical) 70 t
Dimensions (L×W×H) 14,400 × 5,880 × 4,600 mm
Static Brake 50 t

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