Signet Vigilant specifications

Owner/Operator: Signet Maritime Corp.
Builder: Signet Shipbuilding & Repair
Designer: Castleman Maritime LLC
Dimensions: 72’ x 28’ x 9’6”
Mission: Harbor tug
Crew size: 4 (berthing for 6)

Propulsion: 
Engines: (2) MTU 8V4000 M54, EPA Tier 3, total 2,460 hp
Bollard pull: estimated 30 metric tons ahead, 26 metric tons astern
Vessel speed: 11.7 knots 
Propellers: (2) 63” 4-blade nibral props in Kort nozzles
Thrusters: (2) Rolls-Royce US155 z-drives
Aux. generators: (2) Kennedy Engine Company Gulf-Pac 65-kW generators; John Deere Tier 3 4045TFM85 connected to Marathon Electric “Mariner” generators

Deck equipment: 
Bow winch: Markey DEPC-32, 20 hp
Facing winch: (2) WWP40LP, 40 ton, 7.5 hp
Cordage: 2” Quantum 12, 200’; 2” Saturn 12, 300’
Fendering: Schuyler laminate fenders

Navigation gear:
Radar: JRC JMA-3300
Compass: Ritchie B-463
AIS: JRC JHS-183
Autopilot: Simrad AP80

Communications:
Radio: ICOM M504 VHF

Capacities:
Fuel: 20,700 gallons
Water: 2,470 gallons
Lube oil: 490 gallons
Dirty oil: 410 gallons
Ballast: 6,515 gallons

Firefighting:
Pumps: Firemain MP Flomax 
Onboard fire suppression system: Kidde FM-200

Coatings:
Hull: International Paints 
Specialty paints: Sika flooring damping compound

By Professional Mariner Staff