Delta Teresa is the 7th tractor yank NBBB has actually developed for Baydelta and also its associated business, yet the initial crossbreed
Nichols Brothers Boat Builders (NBBB) Freeland, Wash., records that it efficiently trialed and also supplied Baydelta Maritime’s brand-new 100′ x 40′ Delta course crossbreed tractor yank Delta Teresa, April 16,
The vessel is the 7th tractor yank NBBB has actually developed for Baydelta and also its associated business, yet the initial crossbreed.
The yank is powered by 2 Caterpillar C3516 C Tier 3 diesel motor each ranked at 1,995 kW @ 1,600 rpm and also by 2 424 kW electrical motors.
The Z-drive system, 2 Kongsberg (previously Rolls-Royce) 255FP devices, can approve power from the diesel motor, electrical motors and also from both source of power.
The electrical motors are powered by 3 FELINE C9.3, 300 kW each, 480 V 3-phase @ 1,800 rpm generators, and also one harbor generator a C7.1 150 kW 480 V, 3-phase @ 1,800 rpm.
The hybrid system enables the vessel to run in various power settings, direct-diesel, diesel-electric or fully-electric. This provide gas financial savings and also decreased exhaust discharges, while suppling Baydelta with the power and also vessel qualities required for its procedures.
On tests, the yank’s efficiency satisfied or surpassed all assumptions. Free running rates, under complete power, of 14+ knots were acquired together with nearly 10 knots on electrical motor power just.
The yank has 7 berths.
Major devices aboard consists of; Rapp Marine electrical hawser winch, and also a solitary drum tow winch, and also the drivetrain is gotten in touch with Centa carbon fiber shafts.
In enhancement to the drive devices and also hybrid system, Kongsberg provided the control system and also primary switchboard, electrical motors and also their control closets.
Designed by Seattle- based Jensen Maritime Consultants, the yank lugs an ABDOMINAL loadline certification and also follow USCG needs.
Currently under agreement at NBBB’s shipyard are an ATB yank for Island Tug and also Barge, 4 100′ tractor yanks for Foss Maritime, 2 high-speed catamaran ferryboats for Kitsap Transit along with repair for Golden Gate Ferries and also Kelly-Ryan Services
