Home' Work Boat World : April 2010 Contents SPECIFICATIONS
Type of vessel:
In survey to:
Passenger ferry catamaran
Noumea, New Caledonia
Sodil, New Caledonia
BSC Marine Design,
Brisbane Ship Construction,
2 x Yanmar 6HYM-ETE
engines, each 485kW
2 x ZF 500-1A,
19.5 (flag requirement
less than 20 knots)
19 at 1,950rpm
Designed and built by Brisbane
Ship Constructions (BSC), the tourist
ferry 'Ieneic' is destined to operate on
open seas in and around Lifou Island in
The routine run for the ferry is a
six-hour return trip across open water with
no refuelling en route. The ferry has the
capacity to seat 100 passengers, 70
downstairs and 30 upstairs.
"Engine selection has been critical to
the success of this vessel," said Russell
King, BSC project coordinator.
"We had to successfully marry a range
of competing demands of the design and
operation. The engines needed to be fuel
efficient to run the six-hour round trip
without refuelling, top speed needed to be
no greater than 20 knots and of course
reliability and ease of maintenance without
special tools in these waters is paramount."
"Ultimately we settled on a pair of the
Yanmar 6HYM-ETE engines. They delivered
on all counts having the right power, the
right weight and excellent fuel economy
for the job."
Operating under a French flag and built
to Pacific Class regulations, the BSC ferry
measures 19 metres in overall length and
has a beam of eight metres. Fully laden
with passengers she weighs 45 tonnes.
The cat hull design incorporates plate
aluminium with a 6mm bottom. There is
also a large skeg designed so that the boat
can be beached if necessary, with the skegs
ensuring that the props are fully protected.
In sea trials conducted on Moreton Bay
prior to being delivered to the customer,
the Yanmar powered cat returned
impressive performance and fuel data.
Optimum cruise speed was achieved at
1,950rpm with the GPS showing a speed of
19.0 knots. Fuel consumption at this level
of operation is 70 litres per engine per
hour. The required maximum vessel speed
of 19.6 knots was achieved at a reduced
and conservative engine speed of 2,050rpm
with the oversized ZF 500-1A transmissions
spinning the props at 1,043srpm via a
reduction ratio of 1.964:1.
Yanmar's 6HYM-ETE model engine is a
true blue work boat quality engine and
includes Yanmar's latest combustion
chamber design named ASSIGN, a system
originally pioneered by Yanmar on their
large bore, low speed propulsion engines.
The 6HYM-ETE offers great fuel efficiency
and is an emission compliant IMO-certified
product with full classification to
BV/ABS/LR/RINA and NK if required.
To keep the engine room fully Yanmar
powered, BSC fitted a pair of MASE 25 Kva
generator sets. The dual MASE generator
sets are used to drive the five, 240-volt air
conditioning units on board, together with
the fridges in the galley, deck mounted
freezer boxes for inter- island supplies,
sound system and sundry electrical needs.
"We liked the idea of having a fully
Yanmar powered engine room," concluded
Russell King. "It keeps everything very neat
and tidy and that's the way we like to
deliver our boats."
Paints and coatings onboard the vessel
were supplied by Jotun.
For further information contact:
Brisbane Ship Constructions, Australia.
PH: +61 7 3876 1522, FX: +61 7 3876 1566,
April 2010 WORK BOAT WORLD
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