SSG No 10 - Shipgaz

technical news
Editor: Robert Hermansson ~ Phone: +46 40 15 61 44 ~ E-mail: robert@shipgaz.com
Highly specialized
OCV on order
The Norwegian company North Sea Invest
AS has placed an order with Astilleros Barrera
in Vigo, Spain, to build a 145 metres
long an 30 metres wide Offshore Construction
vessel (OCV). The delivery is
scheduled for 2010. The OCVs are multipurpose
ships for the gas and oil industry
and are used for installations of complex
platforms and extraction systems as well as
for laying of pipelines.
The vessel under construction in Spain
can accommodate more than 120 crew
members. Among the tailor-made equipment
are two heave compensated cranes
that adapt hydraulically to prevailing sea
movements as well as a helipad. The ship is
fitted with five Voith Schneider Propellers
(VSP) type VSP 36R6 EC/280-2, three in
the stern and two in the bow. The propulsion
machinery is diesel-electric and consists
of five electrical motors with a total
output of 19,000 kW.
Roll stabilization
Among the special features is a redundant
dynamic positioning system (DP2) that
will keep the ship at a given working position
as well as the Voith Roll Stabilization
(VRS) that reduces rolling motions when
seas are high.
The maximum sailing speed is 16 knots.
The vessel has a large deck surface for preparatory
work and a possible area of application
can be in Santos Bay, just outside
Rio de Janeiro , where oil reserves recently
were discovered at 3,000 metres depth.
For more information, please contact:
Adela Trstenjak, Tel: +49 7321 37-24 94
e-mail: adela.trstenjak@voith.com
www.voithturbo.com/marine
The OCV on order from Spain.
New free fall lifeboat
for tankers and bulkers
The new Schat-Harding FF750 lifeboat and
davit LA750 is a fully integrated free fall
lifeboat and davit system specially designed
as a unit for tankers and bulk carriers. The
capacity is 32 persons and the lifeboat and
davit have been designed and tested in
Norway and are produced in China. The
first deliveries will take place approximately
when this magazine is published.
One metre saved
The boat and davit have been designed
from scratch using Schat-Harding’s accumulated
experience with free fall. The
system has a skid angle of 45 degrees and
that saves almost one metre in length for
the installation when compared to older
designs with similar capacity. Inside the
boat, the seating has been reconfigurated
to be more spacious due to the fact that
the seafarers of today are bigger than the
standard size and weight still used in international
regulations. The FF750 has specially
adapted seats and seat belts to make
boarding easier and give the crew better
protection.
The boat is made from FRP (Fibreglass
Reinforced Polyester) and has a length of
8.97 metres. The weight fully equipped is
4,820 kg and 7,700 kg when fully loaded. It
has been safety tested from 30 metres and
the certified drop height is 23 metres. That
is more than sufficient for the merchant
ships it is designed for.
The bow has been configured to give a
soft water entry and reduce G-forces on the
occupants and at the same time give optimum
surfacing speed for the typical merchant
ship drop heights and allowing the
boat to speed clear of the ship under the
drop momentum.
Simulator
Special attention has been paid to the
design of the safe and efficient retrieval system
and also to a free fall simulator system
which allows crews to train in safety.
For more information, please call:
Per-Einar Gjerding, Tel: +47 5348 3682
e-mail: per-einar.gjerding@schat-harding.com
www.schat-harding.com
78 SCANDINAVIAN SHIPPING GAZETTE • MAY 16, 2008