N.V. Bureau Wijsmuller, IJmuiden
In 1975 Wijsmuller bougth the German tugboat Hamburg,
and added the tug to the Wijsmuller fleet as Amsterdam (II). This tug
was built in 1971 by Schiffswerft J. Oelkers K.G. at Hamburg, Germany. The contents of the
tug are Gross tons 902, Length o.a. 168'-5", breadth 37'-5", depth 16'-5".The propulsion machinery consist of two 9 cyl. M.A.K.diesel engines, turbo
charched, drive a single propellershaft through hydroflex couplings and reduction
gear, giving an output of 7.500 I.H.P.
In 1985, the "Amsterdam" was accused by Iran to be an espionage ship, because it had such advanced equipment on board . The ship was taken in possession.