LT Series LARS Data Sheet

Hydraulics Fitting: Steel or SS316 ... snubber is equipped with active pneumatics air-bellow damper for the snubber “skirt” to be ... LT Series LARS D...

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LT Series ROV LARS Data Sheet  

LT Series ROV Launch and Recovery System (LARS) are intended for launch and recovery of TMS/ROV/Skid package with armored umbilical cable. There are three sizes of A-frame, three sizes of winch and three types of HPU in the series. A-frame SWL

6Te

8Te

11Te

Winch Capacity

1200m of 37mm OD

1800m of 37mm OD

3600m of 37mm OD

HPU Rating

86KW

149KW

152KW

Standard combinations are LT6-1200-86, LT8-1800-86, LT8-1800-149, LT11-3600-149 or LT11-3600-152. Other SWL, umbilical capacity and HPU rating can be accommodated upon request.

West Marine Technologies Pte Ltd [email protected]

 

(Doc Ref No: A00010120)

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LT Series ROV LARS Data Sheet  

To ensure safe operation, all LTSeries LARS are designed with 3g Dynamic Amplification Factor and intended for operation up to Sea State 6 condition / 4.5m Significant Wave Height. However, to meet specific user requirements, it can be delivered with different certification options: Zoning:

Safe Area or Zone 2

Operating Temperature: 0°C to +45°C or -20°C to +45°C Certification:

Class Approved or DNV 2.7.1, DNV 2.22, 3rd Party Witnessed Load Test Certs

Other optional features include: Remote Control:

Wired or Radio Remote Control Belly Box

HPU Oil Tank:

Painted Steel or SS316

Hydraulics Tubing:

Painted Steel Tube or SS316

Hydraulics Fitting:

Steel or SS316

HPU Cooling:

Water or Air Cooled Heat Exchanger

Umbilical Cable Drum:

Flat or Grooved (Lebus)

All LT Series LARS comes with a PLC (Programmable Logic Controller) system that monitors umbilical bullet / docking latch position, tracks umbilical payout length and controls levelwind position. All electronic sensors are maintenance free contactless inductive type. The A-frame comes with a very robust snubber (Motion Damper) with forward / aft damping, vertical telescopic of one meter travel distance and rotate functions. The snubber is equipped with active pneumatics air-bellow damper for the snubber “skirt” to be able to actively engage/disengage the top of TMS or ROV. All tubing and hoses on the Aframe are optimally routed, accessible and yet fully protected by the A-frame structure. The snubber latch system is an elegant and simple fail-safe design where umbilical bullet will dock automatically by spring action when being simply pull into position with the umbilical winch.

West Marine Technologies Pte Ltd [email protected]

 

(Doc Ref No: A00010120)

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LT Series ROV LARS Data Sheet  

LT8  A-­‐frame  

A-frame / Snubber Specifications

LT6

LT8

LT11

A-frame Design

Double Linkage Design

Snubber Degree of Freedom

3 (Fwd/Aft Damping, Vertical Telescopic / Rotate)

Snubber Latch

Fail Safe Bullet Pull Through to Latch

Snubber Depression on TMS / ROV

Pneumatics Controlled Active Air-Bellow Damper

Snubber Latch SWL

6Te

8Te

11Te

A-frame Luffing SWL

6Te

8Te

11Te

SWL (Package in Water)

12Te

16Te

28Te

A-frame Weight

18Te

20Te

20Te

A-frame Base Width

3000mm

3235mm

3235mm

Clearance Between A-frame Leg

2040mm

2275mm

2275mm

A-frame Base Length

7200mm

7200mm

7200mm

Outboard Reach (Centre of Snubber)

4585mm

4485mm

4485mm

Oil Drip Tray

Optional: Open / Drip Tray / Enclosed Bottom

West Marine Technologies Pte Ltd [email protected]

 

(Doc Ref No: A00010120)

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LT Series ROV LARS Data Sheet  

LT1800  WINCH   Winch Specifications

1200

1800

3600

1200 meter

1800 meter

3600 meter

Line Pull @ Full Drum

8Te

11.5Te

15Te

Line Pull @ Core Drum

11Te

16Te

28Te

Brake Holding

18Te

24Te

33Te

30m/min

30m/min

50m/min

Weight

17Te

20Te

35Te

Width

3235mm

3600mm

3600mm

Length

2692mm

2692mm

2900mm

Height

2685mm

2685mm

2750mm

Drum Capacity @ 37mm Cable OD

Average Line Speed

Standard Slip Ring Mounting

Suits Focal 176/242 with OD 140.2mm

Umbilical Junction Boxes

Mountings for 2 boxes on drum flange

Deck Cable Junction Boxes

Mountings for 2 boxes on drum side stand

Level Wind Mechanism

Contactless Induction Sensor / PLC Controlled

Oil Drip Tray

Enclosed bottom with drainage outlet

   

West Marine Technologies Pte Ltd [email protected]

 

(Doc Ref No: A00010120)

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LT Series ROV LARS Data Sheet                                                  

LT149  HPU   HPU Model

86

149

152

86KW Single Motor / Pump (Open Loop) 900 Liter

149KW Dual Motor / Dual Pump (Open Loop) 1200 Liter

152KW Single Motor / Dual Pump (Closed Loop) 1000 Liter

260 Bar

260 Bar

280 Bar

3.5Te

4Te

4Te

Width

1600mm

2100mm

1800mm

Length

2100mm

2100mm

2300mm

Height

2300mm

2300mm

2300mm

Power Rating Design Tank Capacity Maximum Operating Pressure Weight Including Oil

Note 1

Oil Drip Tray

Enclosed bottom with Drainage Outlets

 

Note  1  –  Weight  for  Non  Zone  Rated  Version,  Zone  2  Rated  add  250Kg  

West Marine Technologies Pte Ltd [email protected]

 

(Doc Ref No: A00010120)

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