tec larsy systems - ulmatec - · pdf fileisland enforcer, an advanced subsea ... certifi...

ULMATEC LARS

LAUNCH AND RECOVERY SYSTEMS

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Ulmatec develops effi cient, safe and robust solutions for handling remotely operated

vehicles (ROVs) from ships and rigs. The Ulmatec LARS™ functions effectively

even in demanding weather conditions. This range comprises complete systems for

launch and recovery over the side or through the moon pool, from built-in hangars

or from the open deck.

During the development of the Ulmatec LARS™, the focus has been on getting as

close as possible to the sea/splash zone with the handling system while maintaining

operator safety. This maximises the weather window, giving more operational days

in a safe environment.

The system is operated safely from a work station with a full overview of the launch

and recovery zone. The Ulmatec LARS™ can also be delivered for remote control

from other operating areas on the vessel. All versions are easy to adapt to different

hangar sizes or decks.

The Ulmatec LARS™ has been designed for safe operation and for effi cient and

environment-friendly service on deck. The ROV and the tether management system

(TMS) can easily be separated using either the frame or sliding hatches, which have

Clean class for oil collection.

ULMATEC

LAUNCH AND RECOVERY SYSTEMS

4__Ulmatec Moon Pool LARS™ 6__Ulmatec U-Frame LARS™ 8_Ulmatec Overhead LARS 4.5™

10__Cetix - high performance electrical winches 9__Ulmatec Heavy-Duty LARS 6.0™

Ulmatec has delivered two Moon

Pool LARS™ (pictured), a hydraulic

hatch system for the main moon pool

and skid systems for the work deck on

Island Enforcer, an advanced subsea

construction vessel.

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ULMATEC MOON POOL LARS™The Ulmatec Moon Pool LARS™ is the ultimate system for launch and recovery in rough weather. Designed to

handle work-class ROVs, this system is completely built-in and specially outfi tted for safe and soft launch and

recovery of ROVs – even in high waves.

� The Ulmatec Moon Pool LARS™ for safe handling, storing,

launching and recovery through the moon pool. This vertically

guided system is fi tted to the moon pool wall. With its

operational area placed inside the vessel and screened from

wind and weather, it is designed to provide a safe platform for

both operators and ROV equipment.

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CURSOR SYSTEM FOR CONTROLLED RELEASE AND SOFT LANDING

� When the ROV/TMS is to be retrieved to the vessel,

it is fi rst raised with the umbilical winch to about 50

metres beneath the keel. The umbilical winch will then

cease lifting and the lower cursor will be lowered to

about 30 metres beneath the keel.

� In recovery mode, the umbilical winch will lift

about 20 per cent faster than the cursor winch. This

reduces the jolt when the lower cursor engages with

the ROV/TMS.

� When the lower cursor and the ROV/TMS have

latched together, the signal will be given for the

umbilical to change to constant tension (CT) mode,

and cursor winches will guide the lower cursor and

the ROV/TMS into the upper cursor, up into the moon

pool and over the hatches to the deck.

� A cursor guides the ROV and its tether management

system (TMS) through the moon pool.

� When the ROV/TMS reach the bottom of the moon

pool, the main (upper) cursor halts and the ROV/TMS

is lowered to the desired depth.

� The lower cursor is conically shaped in order to

guide the umbilical during the operation.

Controlled release

Soft landing

ULMATEC MOON POOL LARS™

� Enlarges the weather window, and thereby

increases the number of operating days

� Reduces the danger of damage to the

equipment

LOWER CURSOR

ROV/TMS

80%SPEED

100%SPEED

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ULMATEC U-FRAME LARS™The Ulmatec U-Frame LARS™ is a fl exible solution with a long reach and high capacity despite its simple

and compact design. It provides a mobile system for rapid and simple mobilisation and demobilisation. The

U-frame is intended for installation on deck, which means it is also very suitable for retrofi tting on existing

vessels.

� The Ulmatec U-Frame LARS™

is a deck-mounted system for safe

handling, storing, launching and

recovery over the side. With its long

reach of 4.5 metres from the vessel side

and 3.5 metres below deck level, it can

be installed on a mezzanine deck, for

instance.

The Ulmatec U-Frame LARS™

is a deck-mounted system for safe

handling, storing, launching and

recovery over the side. With its long

reach of 4.5 metres from the vessel side

and 3.5 metres below deck level, it can

be installed on a mezzanine deck, for

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ROVVOR

A FLEXIBLE SOLUTION WITH A LONG REACH AND HIGH CAPACITY

� The Ulmatec U-Frame LARS™ is a mobile system

which ensures rapid and simple mobilisation and

demobilisation.

� As a deck-mounted system, it can easily be adapted

to existing vessels.

� Safe working load 15 000kg

� The Ulmatec U-Frame LARS™ has properties which

minimise the risk of damaging equipment during

launch and recovery.

� In working position, the distance from the ship side

to the umbilical cable is about 4.5 metres.

� In addition, the frame extends no less than 3.5

metres down towards the splash zone from the deck

where it has been installed.

� Its extended dip features mean that the system

provides flexible positioning. It can be located on a

mezzanine deck, for instance.

Extended dip features

Mobile system

ULMATEC U-FRAME LARS™

� Rapid mobilisation – more days in operation.

� Flexible choice of vessel.

� Can be installed higher than standard

A-frames while reducing the distance to the

splash zone.

3.5m 4.5m

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ULMATEC OVERHEAD LARS 4.5™The Ulmatec LARS 4.5™ is a traverse system installed on the hangar ceiling for operation over the vessel

side. This launch and recovery system has been developed to provide optimum safety for the operator during

operation and in parking/servicing the ROV/TMS. It features a unique design, operational fl exible, easy instal-

lation and minimal service requirements.

ROVVOR

� The Ulmatec LARS 4.5™ is designed to operate at

about 5 metres from the vessel side to the centre of

the umbilical at deck level when in launch and recovery

position. That provides greater distance from the ship

than a standard A-frame, and a considerably lower gap

between the launch/recovery position and the splash

zone. This permits soft handling in rough weather as

well as optimised ROV lowering and raising.

� When deploying the ROV, the vertical crib can be

hoisted above the lower part of the hangar side hatch

for more secure operation in heavy seas.

� A solid weather-tight hatch measuring three metres

from deck and into the hangar opening can be supplied.

This protects crew and equipment in the hangar

from waves and weather along the vessel side during

operation.

� The ROV operators have optimum working

conditions, with a clean ROV deck providing easy access

during service and maintenance.

� The system is equipped with a trolley for parking

and separating the ROV and TMS, which simplifi es

service and maintenance.


SAFE LAUNCH AND RECOVERY OPERATIONS

5m

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ROVVOR

ROVVOR

ULMATEC HEAVY-DUTY LARS 6.0™The Ulmatec LARS 6.0™ is a heavy-duty launch and recovery system specially developed for ROV operations

from large vessels with a high freeboard.

This traverse system is fi tted to the hangar ceiling for safe storage and operation of the ROV over the ship’s

side. It guides the ROV securely through the splash zone and right into the sea with the aid of vertical guide

beams mounted on the ship’s side.

� A guidance system which follows the ROV down

the vessel side is important during launch and recovery

operations on ships where the ROV hangar is a long

distance from the splash zone.

� The guidance system eliminates swinging of the

ROV, even with large vessel motion. This eliminates the

danger of the ROV coming into contact with the vessel

side on its way up or down.

� The Ulmatec LARS 6.0™ comprises two trolleys –

one horizontal, running on horizontal guide beams

fi tted to the hangar ceiling, and the other vertical,

running on vertical guide beams fi tted to the horizontal

trolley and the ship’s side.

� The system can also be delivered with a guidance

system beneath the sea surface. The vertical guide

beams on the vessel’s side will then end at the bilge

radius below the waterline.


FULL HORIZONTAL AND VERTICAL CONTROL

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CETIX - HIGH PERFORMANCEELECTRICAL WINCHES

CETIX WAVERUNNER™ 5R

The electrically driven Cetix Waverunner™ 5R is designed to achieve superior active heave compensation (AHC) capabilities for modern observation-class ROVs in water depths downto 2 000 metres.High torque and precise control at high and low speed permit easy launching, recovery and docking of ROVs to the TMS or a cage in rough weather conditions. The Cetix Waverunner™ 5R is available with Atex and safe area classifi cations, making it suitable for installation on vessels and rigs.


The electrically driven Cetix Waverunner™ 10R is designed to achieve superior AHC capabilities with modern work ROVs (WROVs) in water depths down to 2 000 metres. The electrical control system with frequency converters gives the operator full control, with both high torque and high speed available simultaneously. Combining high tension and speed with optional front or top spooling, the Waverunner™ 10R is the ultimate choice for ROV operation in rough weather conditions.

Umbilical capacity 2 000m of 25.4mm-diameter umbilical

Umbilical speed 0-115 m/min

Safe working load 5 000 kg

Certifi cation DNV 2.22 rules for lifting applianceses

Umbilical capacity 2 200m of 40mm-diameter umbilical



Certifi cation DNV 2.22 rules for lifting appliances

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The electrically driven Cetix Waverunner™ 13R is designed to achieve superior AHC capabilities for modern WROVs in water depths down to 3 000 metres. The electrical control system with frequency converters gives the operator full control, with both high torque and high speed available simultaneously. The Cetix Waverunner™ 13R is equipped with three motors to ensure fast acceleration and redun-dancy. Combining high tension and speed with optional front or top spooling, the Waverunner™ 13R is the ultimate choice for deepwater ROV operations in rough weather conditions.


The Cetix Waverunner™ 19R is designed to achieve superior AHC capabilities for modern WROVs in depths down to 4 000 metres in rough weather. It is equipped with four electric motors to achieve high speed, high torque and redundancy in the drive system. The electrical control system with frequency converters gives the operator full control, with both high torque and high speed available simultaneously. The Cetix Waverunner™ 19R is ideal for both moon pool systems and hangar solutions, and is available with front or top spooling.

CETIX OCEANRUNNER

The Cetix Oceanrunner is designed to support observation-class ROVs and WROVs in water depths down to 2 000 metres. With electrical drive and a PLC-based control system, it has the torque and speed to suit most operating conditions worldwide. The Cetix Oceanrunner is the ultimate alternative to hydraulically driven systems. Drive panels and a braking resistor are pre-installed on the winch frame, ideal for low-cost installation and effective commissioning. The Cetix Oceanrunner is available with one or two electric motors.




Certifi cation DNV 2.22 rules for lifting applianceses

















UlMATEC STroMEk AS Strandgata 25 NO-6060 Hareid Norway

Phone: +47 70 01 24 70 Fax: +47 70 01 24 71 E-mail: [email protected] Web: www.ulmatec.no

ULMATEC provides highly functional and specialised marine solutions for rigs and ships based on customer needs.

It offers complete projects, system deliveries in close cooperation with renowned naval architects, and third-party

verification of external deliveries.

Ulmatec is an abbreviation for Ulstein Marine Technology AS. This company can trace its history back to 1917 and to

Ulstein Mek Verksted, the origin of the Ulstein group.

After 1999, a number of new marine businesses flourished following the acquisition of Ulstein by Vickers and Rolls-

Royce. One of these was Ulmatec. Established in 2000, it is now the parent of a group of companies delivering marine

technology and services worldwide.

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tec larsy systems - ulmatec - · pdf fileisland enforcer, an advanced subsea ... certifi...

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