R/V Western Flyer Specifications

The research vessel Western Flyer steaming past the main building of the Monterey Bay Aquarium Research Institute in Moss Landing, California.

The research vessel Western Flyer steaming past the main building of the Monterey Bay Aquarium Research Institute in Moss Landing, California.

Design Characteristics
Displacement at DWL 399.3 LT
Gross Tonnage 498 US, 856 ITC
Net Tonnage 229 US, 256 ITC
Length (LOA) 117′-3 5/8″
Beam Moulded 53′-0″
Draft DWL 12′-0″
Horsepower 2,500 HP
Max. Speed 12.5 knots
Endurance, 8 knots 3000 n.m.
Complement (including Science) 26
Fuel Capacity 22,000 gallons
Potable Water 2400 gallons
Clean L.O. Capacity 700 gallons
Dirty L.O. Capacity 700 gallons
Ballast Capacity 20,077 gallons
Gray Water 300 gallons
Black Water 280 gallons

General arrangement

Accommodations are provided for a combination of 26 crew members and scientists in 14 staterooms located on the upper deck. The crew complement is ten for all voyages and the combination of ROV staff and scientists (16) brings the total vessel complement to 26.

Equipment and control/monitoring systems

The main machinery plant is diesel electric with a common power bus connecting five generators. Any combination of generator operation will provide power for both propulsion and other vessel operations. This design arrangement provides a high level of machinery plant redundancy and operational flexibility. Propulsion power is transmitted through two duplicate drive trains, each consisting of a DC electric motor and fixed pitch propeller. Silicon controlled rectifiers (SCR’s) are used to convert generated AC power to DC propulsive power. Two electric motor-driven bow thrusters are installed to enhance maneuvering and station-keeping.

Primary equipment and control/monitoring systems
Five generators Two Caterpillar, Model 3512, 850 kW
Two Caterpillar, Model 3408, 350 kW
One Caterpillar, Model 3306B, 195 kW
Two propulsion motors GE, 1250HP ea, 400 RPM
Two bow thrusters Omnithruster, HCT 600, 300 HPea
Four SCR drives GE, Model DC2000
Fuel centrifuge Alfa Laval, Model MAB 103
Marine sanitation device Orca, Model 11A-36
Air compressor Kaeser
One water-maker Sea Recovery model SCR5M3-SW-H
Cathodic protection/monitor Swath Ocean Systems, Inc.
Uninterruptible power supply Exide Pwr Wave +18, J1842AU131EE00A
Generator control Point 8
Propulsion control Nautronix/GE/Omnithruster
Bow thruster control Omnithruster B2000
Ballast system control Swath Ocean Systems, Inc.
Primary navigation and communication equipment
GPS Simrad MX512, Furuno SC120
Radar Furuno, Models FAR2827 & FR8255
Gyro compass Sperry FOG Furuno SC120
Dynamic positioning Nautronix, Model ASK 4001
Autopilot Maritime Dynamics Inc, Nautronix ASK 4001.
Motion Control Maritime Dynamics Inc.
Steering system Swath Ocean Systems, Inc. / Maritime Dynamics
GMDSS station Furuno model RC5000 3T, areas A1-A3
Depth sounder Knudsen 3208/R (good to 5000m)
PBX system Meridian: Phone/intercom/cellular/watch
Weather station Barometer, wind indicator, Furuno FW-200
Chart and Navigation Winfrog and Nobeltec electronic charting systems
Doppler Furuno CI-80 current indicator
Call Sign WDD 2611
Primary fire fighting and safety equipment
Fire detection and alarm system Cerebus Pyrotronics MXL
SOLAS Rescue Boat Ribcraft 5.85m with Yamaha F90 outboard motor
Life rafts Two 25-person Vikings
Extinguishing systems Portable extinguishers and seven fire hose stations
Two 406Mhz w/121.5 Mhz beacon
Primary deck machinery
Cranes One – Model HIAB 290
One – Modified Allied
CTD winch system Dynacon 12030
Capacity: 6500 m of .322 in. cable
Max. continuous line pull:
Bare drum – 7000 lbs.@100 fpm
Full drum – 4300 lbs.@140 fpm
Max. continuous line speed:
Bare drum – 240 fpm @ 2500 lbs.
Full drum – 415 fpm @ 1450 lbs.
Anchor windlass Kolstrand
Mooring winches Four – Marco WG023
ROV umbilical
handling system
Dynacon TV3615K/SW3616K
Stern “A-Frame” 13,000 lbs. SWL;
14 ft wide, 13 ft clearance through entire range of motion.