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Seaeye Launch & Recovery Systems
(LARS) - 'A' Frame Systems
click image to enlarge
Type 1K1-1.25 LARS launching a Tiger and its TMS
We have a range of 'A' frame LARS designed specifically
to match your Seaeye ROV that are equally suitable for launching
other manufacturers' vehicles. These all incorporate a number
of useful new features including:
- Elevated 'A' frame pivot point to clear a 2 metre high
ship's guard rail.
- Compact integrated skid mounted 'A' frame, winch and
HPU.
- Forward located rams to provide clear side access to
the ROV and TMS.
- Stainless steel fittings, fastenings and pipe work
to reduce corrosion.
- No crane required for erecting the 'A' frame to reduce
mobilisation time and cost.
- Optional latch mechanism for safer deployment.
- Zone 2 option.
- Crash frame to protect the winch and HPU.
- Compact stowed position for easier transport.
- Designed to DNV Rules for Certification of Lifting
Appliances.
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In the stowed/ transport position the LARS is
extremely compact and small enough to be shipped in a standard
ISO container if this were required. A crash frame is fitted
around the winch and HPU with additional protection during
transport provided by the 'A' Frame in its stowed position.
click image to enlarge
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click image to enlarge
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| LARS in stowed/transport position |
LARS in stowed position - port side |
The 'A' frame can be erected using the system's
own rams without the need of any other external lifting devices.
This simplifies and reduces the cost of mobilisation and commissioning
to a new location.
click image to enlarge
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click image to enlarge
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| Stowed position viewed from the front |
'A' frame erected ready to lift ROV &
TMS |
The pivot point for the 'A' frame is 2 metres
above the deck which allows the ROV and TMS package to clear
vessel guard rails up to this height and to achieve a greater
overboard reach than a conventional 'A' frame pivoted at deck
level.
The forward position of the 'A' Frame rams keeps
side access to the ROV and TMS clear of obstructions for essential
maintenance and pre-dive checks.
click image to enlarge
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click image to enlarge
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| Over boarding the ROV & TMS |
Ready to lower into the water |
Seaeye offer four standard LARS types whose Type
number is designated by the umbilical winch capacity and system
safe working load. For example, for Type 1K1-1.25, 1K1 refers
to a winch capacity of 1100 metres and -1.25 to a 1.25 tonne
SWL at 3G which is widely regarded as suitable for operations
in sea state 6.
Each of these systems can be provided for safe
area or zone 2 operations and an optional latch mechanism
can be fitted to the sheave to capture a vehicle or TMS bullet
for safer launch and recovery.
The most appropriate LARS Type to match each Seaeye ROV is
as follows:
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| Type 1K1-1.25 |
Seaeye 600DT |
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Seaeye Tiger |
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Seaeye Surveyor Plus
With bale arm or type 6 TMS
(but without 2 tonne ballast skid) |
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| Type 1K6-1.25 |
Seaeye Lynx with
1600 metre umbilical and TMS
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| Type 1K1-1.7 |
Seaeye Panther Plus and TMS |
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| Type 1K6-3.2 |
Seaeye 600DT |
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Seaeye Tiger |
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Seaeye Surveyor Plus |
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Seaeye Lynx |
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Seaeye Panther Plus
with Type 6 TMS and 2 tonne ballast skid |
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Other special applications |
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The following are the specifications of the standard Seaeye
LARS Types.
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Type
1K1-1.25
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Type
1K6-1.25
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Type
1K1-1.7
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Type
1K6-3.2
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| WINCH |
| Umbilical winch cable storage capacity |
1100 m |
1600 m |
1100 m |
1600 m |
| Umbilical cable diameter |
31 mm |
31 mm |
31 mm |
32 mm |
| Umbilical winch dynamic pull, at 1st layer
of cable |
3.09 Te |
3.09 Te |
3.09 Te |
5.89 Te |
| Umbilical winch dynamic pull at 8/9th layer
of cable |
1.325 Te |
1.325 Te |
1.87 Te |
3.2 Te |
| Umbilical winch mean recovery speed |
0.5 m/s |
0.5 m/s |
0.5 m/s |
0.5 m/s |
| ELECTRO-HYDRAULIC POWER
UNIT |
| Hydraulic fluid reservoir capacity |
180 L |
180 L |
180 L |
265 L |
| Hydraulic fluid type |
ISO VG 32 |
ISO VG 32 |
ISO VG 32 |
ISO VG 32 |
| Electrical supply type |
3 ph |
3 ph |
3 ph |
3 ph |
| Voltage / frequency |
380V, 50Hz or
440V, 60Hz |
380V, 50Hz or
440V, 60Hz |
380V, 50Hz or
440V, 60Hz |
50 Hz 380 or
415V |
| Electric motor power |
25 kW |
25 kW |
25 kW |
37 kW |
| Cooling water flow required (sea water) |
80 LPM |
80 LPM |
80 LPM |
80 LPM |
| Maximum cooling water inlet temperature |
30°C |
30°C |
30°C |
30°C |
| 'A' FRAME AND SKID UNIT |
| Maximum outboard reach |
3000 mm |
3000 mm |
3875 mm |
3500 mm |
| Nominal host vessel bulwark height transit
capability |
2000 mm |
2000 mm |
2000 mm |
2000 mm |
| Effective SWL (for certification purposes) |
1.25 Te |
1.25 Te |
1.7 Te |
3.2 Te |
| Design amplification factor |
3.0 |
3.0 |
3.0 |
3.0 |
| INTEGRATED SYSTEM |
| Overall length |
4000 mm |
4000 mm |
5000 mm |
4750 mm |
| Overall width, over mounting weldments |
2650 mm |
2650 mm |
2650 mm |
3100 mm |
| Transport width |
2500 mm |
2500 mm |
2500 mm |
2900 mm |
| Maximum height over A frame in operation |
6080 mm |
6080 mm |
7080 mm |
6808 mm |
| Transportation height |
2310 mm |
2310 mm |
2310 mm |
2375 mm |
| Self weight including oil fill |
6.9 Te |
7.25 Te |
7.05 Te |
8.9 Te |
| Gross weight including umbilical cable |
9.65 Te |
11.03 Te |
9.80 Te |
13.2 Te |
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In addition to these standard systems, Seaeye
provide a rapid design service for LARS for special applications
or to suit your particular requirements.
We can also supply variations of these LARS with
smaller winches for systems requiring shorter mainlift umbilicals.
This will result in an overall reduction in the LARS weight
and a possible reduction in its footprint.
We can also provide stand alone umbilical and
lift winch systems to suit Seaeye ROVs or for other handling
applications.
SPECIFICATIONS MAY CHANGE WITHOUT PRIOR NOTICE
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