Home' Work Boat World : November 2015 Contents TUG NEWS
US COAST GUARD CUTTER ‘MORRO BAY’
COMPLETES 14-MONTH OVERHAUL
The US Coast Guard Cutter ‘Morro Bay’
returned to her
Cleveland following a 14-month service life
extension project (SLEP) at the Coast Guard
Yard in Baltimore.
SLEP is a major mid-life overhaul which
is expected to extend the cutter’s service
life 15 years.
‘Morro Bay’ is one of nine 43-metre
WTGB-class icebreaking tugs built between
the late 1970s and early 1980s in
Major SLEP work items included renewal
of the crew’s berthing and messdeck,
comprehensive navigation and steering
systems upgrades, main propulsion motor
overhaul, and installation of a new engine
room water-mist fire fighting system and a
modern small boat davit system.
Additionally, the icebreaking bubbler
system located on the fantail was
decommissioned, and a new bubbler
system was installed in the engine
room. This large diesel engine and its
compressor required plenty of space, so the
ship’s service diesel generators were moved
to make room. The cutter was also
sandblasted and painted top to bottom,
stem to stern.
RAMORA BRINGS TELE-OPERATED
CAPABILITY TO SHIP HANDLING
As a result of research and development
over more than a year, Canada’s Robert
Allan Ltd. has announced its new
autonomous tug concept, the RAmora. The
flagship vessel of Robert Allan Ltd. ’s new
TOWBoT (Tele-Operated Workboat or Tug)
series, the RAmora 2400 is a versatile
towing platform designed primarily for
ship assist and berthing operations.
A high-performance tug with a bollard
pull of 55 tonnes, the RAmora 2400
features a hybrid propulsion system and
substantial battery storage capacity to
enable extended operation even in
potentially hazardous environments such
as LNG terminals or fire-fighting situations.
RAmora is designed to leverage, not lose,
the capabilities of a traditional tug and
operator by working in tandem with
a conventional “command tug”. An
experienced tug Master, operating RAmora
r emotely from the command tug, will use
the “immersive telepresence” features built
into the RAmora console, including live
360-degree video and real-time electro nic
position-sensing from RAmora to capture a
continuous on-board perspective for safe
and effective ship handling.
An advanced real-time control system
provides the interface for the operator, as
well as on-board manoeuvring/positioning
controls, equipment and workspace
monitoring and safety management
functionality. This control system design
has been developed in partnership with
International Submarine Engineering of
Port Coquitlam, Canada, and is derived
from proven remotely operated vehicle,
autonomous underwater vehicle and
surface vessel applications.
RAmora’s crucial secondary functions
bring emergency capabilities to the
harbour environment that are not readily
available fro m crewed tugs. In addition to
being equipped with off-ship fire-fighting
capability to FiFi 1 standard, RAmora has
two 1,200m 3/hr fire mo nitors supplied by
electrically-driven fire-fighting pumps,
and the crane boom can be optionally
fitted with a smaller 600m3/hr fire
monitor and camera. Also, since it has no
crew RAmora can fight a fire more closely
and for longer periods than is possible
with conventional fire-fighting vessels,
while keeping crew out of harm’s way.
NEW TUG TO JOIN VOSTOCHNY
PORT’S FLEET IN EARLY 2016
In early 2016, Vostochny Port in Russia’s
Primorsky region will put its powerful new
4,000kW tug into operation.
The new “Arc4” vessel, named ‘Ural’,
has been under construction since
November 2014. It will accelerate mooring
operations at the port, allowing for two
additional operations each day.
USA: EASTERN LAUNCHES
FIRST OF EIGHT ESCORT TUGS
Eastern Shipbuilding launched the
escort tug ‘Triton’ for the Suderman and
Young Towing Company on September 11.
The vessel, part of a series, is currently
under construction at Eastern’s shipyard
and is scheduled to deliver in the fourth
quarter of this year.
‘Triton’ is the first of a series of four
Z-Tech-class terminal and escort tugs being
constructed for Suderman and Young.
Eastern is also constructing another
identical series of four tugs for the Bay
Houston Towing Company.
The vessels are 24.4 metres in length
overall, with a moulded beam of 11.66
metres and operating draught of 5.13
metres. Main engines are two 1,920kW
Caterpillar 3516C Tier-3 marine diesels
powering Schottel Z-drives for a planned
bollard pull of 60 tonnes.
SVITZER ORDERS SIX TUGS FROM SANMAR
Svitzer has awarded a contract for six
Robert Allan Ltd.-designed RAstar 2800-class
ASD tugs to the Turkish Shipbuilder Sanmar.
Designed primarily for terminal work,
these tugs feature foil-shaped escort skegs and
a sponsoned hull form, which together have
been proven in both model and full-scale
testing to provide significantly enhanced
escort towing and seakeeping performance.
Roll motions and accelerations are
significantly less than those of comparable
sized “standard” tug hulls.
Additionally, these multipurpose vessels
are designed for operation in hot climates
and will be fully prepared for the future
fitting of equipment needed for FiFi1
notation with water spray, deliver a 70-tonne
bollard pull and have accommodation space
for eight crew members. The tugs will be
equipped with a double drum render winch,
two 2,000kW MTU 16V4000M63 engines,
Schottel SRP 1515 thrusters and a central
The delivery of the first vessel in the series
is expected to take place in late 2016.
34 November 2015 WORK BOAT WORLD
32,34,36 TUG NEWS :Layout 1 12/10/15 1:57 PM Page 34
Links Archive October 2015 December 2015 Navigation Previous Page Next Page