Island Sky Article

10 WESTERN MARINER January 2010 www.eagleharbour.com

�

ISLAND SKYBY ROB MORRIS

The 328’ loa (322’ lwl) x 88.5’ (breadth extreme) x 15.75’ (summer load draft) ISLAND SKY approaches the BC Ferries terminal at Earl’s Cove,December 2009. The ferry is a double-ender with 3400 tonnes displacement, 4313 grt and 1100 dwt at the summer load draft.

PHO

TO B

Y RO

B M

OR

RIS

BURRARD HEAVY DUTY DECK MACHINERY

Burrard Model H7 Anchor Windlass

TOWING WINCHES CARGO WINCHESANCHOR WINDLASSES HYDRAULIC ORMOORING CAPSTANS ELECTRIC DRIVES

Congratulations to BC Ferries on the Island Sky

BURRARD IRON WORKS LIMITED220 Alexander Street, Vancouver, B.C. V6A 1C1

Phone: (604) 684-2491 Fax: (604) 684-0458E-Mail: [email protected]

Proud Supplier to BC Ferries’ Island Sky

3681 East 1st Avenue, Vancouver, BC V5M 1C2 Telephone: 604-293-2900 (24 Hours)

www.radioholland.ca

Thrane & Thrane

www.eagleharbour.com January 2010 WESTERN MARINER 11

�

In their new intermediate ro-ro ferryISLAND SKY BC Ferries Services (BCFS)has a ship designed for short voyages

on multiple routes within the BCFS sys-tem. Initially the ISLAND SKY went intoservice in the spring of 2009 on the Earl’sCove/Saltery Bay route on the SunshineCoast where it replaced the QUEEN OF

TSAWWASSEN, retired by BCFS after 48years of service. The ISLAND SKY is thefirst vessel in BCFS’s new ‘Island’ class.

In 2005, after a world-wide competitivetendering process, BCFS pre-qualified 14shipyards and ultimately three of themwere short-listed – Allied Shipbuilders ofNorth Vancouver, Washington Marine Group (WMG;owner of Vancouver Shipyards and Victoria Shipyards),and Remontowa S.A. of Poland. The $45.5 million contractto design, build and guarantee performance of the interme-diate ferry was signed with Vancouver Shipyards on July 62006. BCFS had specific requirements for the ferry. Itwould be an all-steel double-ended ro-ro vehicle/passengerferry with capacity for 125 autos and a design complementof 600 passengers. Fuel efficiency at service speed was a toprequirement. Other BCFS requirements are described withthe photos and general arrangement, following.

Vancouver Shipyards’ design for Hull #167 was model-tested by FORCE Technology in Denmark. The ship-yard’s designers developed a ‘unit assembly’ buildingprocess whereby the entire vessel was divided into 124separate units, or blocks, which were assembled in asequence. This maximised the pre-outfitting of unitsbefore they were incorporated into the vessel assembly.Assembly took place in the WMG’s ‘W’ building in NorthVancouver (see ‘Unit Assembly’ at Vancouver Shipyards:BC Ferries’ New Intermediate-class Ferry in WM, March2007). Victoria Shipyards in Esquimalt BC was subcon-tracted to build the ferry’s 480-tonne superstructure and

Each side of the main car deck has four car lanes or two truck lanes with one car lane(under the gallery deck). BCFS also required port and starboard fixed-ramp single-lane

gallery decks which are suspended from the passenger deck above to keep the main cardeck clear of supporting pillars. Total lane length is 2034 ft (620 m). The gallery decks

can be widened from single to double lane to increase vehicle capacity in the future.

PHO

TO B

Y RO

B M

OR

RIS

Sperry Marine CanadaNorthrup Grumman Canada Corporation

WORLD LEADER IN NAVIGATION SYSTEMS

Supplier of Navigation Equipment and Systems Integration for Island Sky

YOUR ONE SOURCE FOR

� Radar� Gyrocompass� AutoPilot & Steering Systems� Electronic Chart Systems� Integrated Bridge Systems� Vessel Management Systems� GMDSS / Communications� Speed Log / Sounders� GPS / AIS / VDR

WORLDWIDE SERVICE - ON CALL ...

In Vancouver 24 Hour Sales / ServiceTel 604-821-2090 Fax 604-821-2091

Sperry MarineService Net

DARTMOUTH ST JOHNSTel 902-468-9479 Tel 709-576-6225Fax 902-468-9480 Fax 709-576-6209

Congratulations to BC Ferrieson your new ship Island Sky

DBC Marine Safety Systems +Zodiac Liferafts

manufacture the mostcomprehensive

range of life raftson the market

today. Beforeheading offshore, be safe

and plot a course for DBC.

ALSO SUPPLIERS OF:• Fire Systems (C02, Halon Alternative)• Fire Extinguishers & Brackets• EPIRBS • Lifejackets

DBC Ma r i n e S a f e t y Sy s t ems101-3760 Jacombs Rd., Richmond, BC V6V 1Y6

Ph: 604-278-3221 • Fax: 604-278-78121-800-931-3221 • e-mail: [email protected] website: www.dbcmarine.com


�

Being a double-ender the ISLAND SKY’s forward and aft wheelhousecontrol stations mirror each other. Mechtronics Technology ofRichmond BC installed their ‘Megalever’ integrated control sticks inwhich the main engine governor and azimuth thruster controls arecombined (the Mechtronics subsidiary IMPEG supplied the mainengines and Z-drive thrusters; see photos on page 14). The portMegalever controls the forward pair of thrusters (which operate inunison) the starboard lever controls the aft pair. Both pairs areengaged for free-running and manoeuvring into berths. Turned 180degrees, the forward thrusters provide braking power; all four drivesreversed with full throttle will provide emergency ‘crash stop’capability in just over one ship length. Sperry Marine Canadasupplied and integrated the navigation electronics and there is aTransas chart plotter and Raytheon Anschutz autopilot.

#410 –1591 Booth Avenue, Coquitlam, B.C. V3K 1B7Tel: 604-812-9803 Fax: 604-521-5140 mckaymarine.ca

· Fire Prevention· Worker Safety/

Burn Prevention· Cooler Work

Environment

Removable Exhaust Insulation

• Structural Fire, Thermal & Sound Insulation •• Asbestos Abatement/Removal • Scaffolding •

• Exhaust & Mechanical Insulation •

Proud Supplier to the Island SkyWESTCOR SERVICES LIMITED

590 Ebury Place, Unit 102, Annacis Business ParkDelta, BC V3M 6K7

Telephone: 604-519-6789 Fax: 604-519-6788

YOUNG & CUNNINGHAM CANADA INC.QUALITY EQUIPMENT FOR THE MARINE INDUSTRY MARINE VALVES, MANIFOLDS, VALVE CONTROL SYSTEMS • ANSI-BS-DIN AND JIS STANDARDS

Young and Cunningham - Marine Valves, Manifolds, Quick-Close valves, Remote operated systemsRepresenting across Canada and the USA Authorized and exclusive distributors for:NRF: Boxcoolers for cooling systems Winteb: Seawater resistant aluminum ventheadsWW Eurovalve: B/fly valves, flanged, wafer, lugged and High performance PresVac: Marine High Velocity tank vents; Kronios: Supplier of potable water management systems “The Concept” PV valvesEconosto: Marine valves and systems for the Marine Industry (DIN)Teekay: Teekay pipe couplings

#4, 35 Seapark Drive, St. Catharines, ON, L2M 6S5 • Tel 905 688 6605 • Fax 905 688 3401 • Email [email protected] Branch Nigel Passmore: Tel./Fax.: 604 946 6018 • Cell: 604 551 3559 • Email : [email protected]

The design of the single passenger lounge (itsurrounds the snack bar) as one fire zone with two

life-raft muster stations was required by BCFS, thusallowing crew size to be the minimum required byTransport Canada. On the Passenger Deck there isgeneral seating for 319 and seating at tables for 64

with outside seating for 120 on the Crew Deck above.

PHO

TOS

BY

RO

B M

OR

RIS

PH

OTO

BY R

OB

MO

RR

IS

ISLAND SKY


�

CO

UR

TESY

VA

NC

OU

VER

SH

IPYA

RD

S

in November 2007 in the Esquimalt Graving Dock it wasmated to the 1320-tonne hull which had been towedfrom Vancouver Shipyards (see ISLAND SKY: Island-classFerry Roll-out & Load-out in WM, January 2008).

The ISLAND SKY is designed to meet Lloyd’s Register+100 A1 passenger & vehicle ferry in Strait of Georgia serv-ice + LMC, CCS; Transport Canada MB/CSA regulationsfor Near Coastal 2 operation including SOLAS and IMOrules. The ferry is currently licensed for 450 passengers.

The ‘Island’-class hull form is different from the similarly-sized classes in the BCFS fleet. The ‘V’ section hull and the hydrodynamically shaped thrusterpods combine to reduce resistance. The thrusters were refined after the model tests to have less extension below the pod and, as the ‘Section Lookingto Midship’ illustrates, this gives the thrusters less draft than the hull. Also the thrusters’ support cans, normally round, were modified to both movethe pods/thrusters closer to the centreline (where the thrusters are more efficient) and to make the thrusters interchangeable. The thrusters can alsobe removed while the vessel is afloat. To bottom right in the GA one of the two Liferaft Systems Australia LSA 14M marine evacuation systems (MES)is shown deployed. Each MES has a 14-metre twin-path slide to evacuate passengers into two 100-person self-righting SOLAS ‘B’ life-rafts.


�

ISLAND SKY

The combination of the hull form (see the GA on page 13) and the propulsionsystem provide fuel efficiency that exceeds BCFS original requirements. BCFSrequired a service speed of 14.5 knots @ <85% MCR and this speed is beingachieved at ~67% MCR. BCFS also required the 100% redundancy of two separateand independent propulsion systems in two separate engine rooms, one at eachend of the vessel with an installation of two six-cylinder, in-line, four-stroke Niigata6L25HX diesels each delivering 1140 kW (1530 hp) @ 770 rpm to a Niigata ZP-21 Z-Peller azimuthing thruster with 2.265:1 reductiongearboxes for a maximum output speed of 331 rpm (top photos). The Niigata 1900 mm NiBrAl four-blade Kaplan-style propellers turn inKort-type speed nozzles fitted with full-width inside surface stainless steel inserts. There are three Caterpillar 3406C diesels driving CaterpillarSR4 alternators. In the photo (bottom) is the main console in the engine control room from which the ship’s systems and its operation aremonitored. In an emergency two of the ship’s thrusters can be controlled from the console and the ferry would be operated using twothrusters at opposing ends of the ship.

PHO

TOS B

Y RO

B M

OR

RIS

ISLAND SKY


�

ABOVE: Approaching the BCFS Saltery Bay terminal, the viewfrom the starboard gallery deck.

LEFT: The ISLAND SKY has a breadth overall of 88.5 ft (27 m) at themain car deck and a 60.5-ft (18.5 m) breadth at load waterline.The ferry was designed for operations on BC Ferries’ shortroutes on most of which the passengers embark/disembark viathe vehicle ramps, however passenger accesses for both theHorseshoe Bay terminal and the Snug Cove, Bowen Islandterminal have been installed on upper decks. �

PHO

TO B

Y R

OB

MO

RR

IS

Ropes & CordageTow Lines · Tie-up Lines · Couplers

Emergency & Pilot LaddersCargo, Safety & Gangway Nets

Complete Rigging & Splicing Shop

Proud Supplier to BC Ferries’ISLAND SKY

831 1st Street W., North Vancouver, BC V7P 1A4Toll free 877-985-7673 · Tel 604-985-7673www.donaldsonropes.comStrength . Quality . Service

· Marine Hatches, Weathertight andWatertight Doors, Windows andManholes

· Custom fabrication in steel, aluminum and stainless steel

Proud Supplier to BC Ferries' Island SkyMANLY MARINE CLOSURES LTD.

20 Brooksbank Avenue, North Vancouver, BCTel: 604-984-4635 Fax: 604-983-2713

[email protected] www.manly.com

PHO

TO B

Y RO

B M

OR

RIS

Documents

Island Sky Article