Designed by Worldwise Marine she was built in 2004 as Primus by Mützelfeldtwerft GmbH, Cuxhaven, Germany as Yard Number 250 and delivered to Harms Offshore AHT Primus GmbH & Co KG under management by Harms Bergung Transport & Heavy Lift GmbH & Co KG of Hamburg.
In 2011 she was sold to nterweser Reederei AG – Bremen, Germany and renamed Bremen Fighter.
The tug has a length of 48.81m a beam of 13.80m and a draft of 7.00 m.
She has two Caterpillar 9M25 main engine developing a total output of 5,940 kW (8,078 bhp) and can achieve a speed of 16.5 knots and a bollard pull of 108 tons.
MMSI - 304742000
REG - AG, St.Johns
IMO - 9321287
Call Sign - V20YI
Built - Mutzelfeldwerft, Cuxhaven, DE
Yard No - 250
L 48.81m W 13.8m
GT - 1262
Year - 2004
Liverpool 24 May 2013