The Nessies: Overview and History

The name "Nessie" was given to a submarine cable trencher in 1988 when an order was received to lay a telephone line from the German mainland to Sylt, an island in the North Sea off the German coast. Nessie I was specially built for the execution of the project and spontaneously given the name Nessie when someone asked what the bales of straw on the submarine cable trencher were for and was told "That's feed for Nessie!"

Nessie I:

Year of construction	1988
Weight	ca. 23t
Max. water depth	ca. 4m
Cutting depth	ca. 1,8m
Output	ca. 220 HP

Nessie II:

Year of construction	2008
Weight	ca. 118t
Max. water depth	ca. 10m
Water depth with external motor unit	ca.15m-20m
Cutting depth	up to 10m
Output	ca. 1156 HP

"Zero discharge" and "Fit for purpose" certifications issued by Germanischer Lloyd

Nessie III:

Combined machine that can be used as a trencher when cutting depth is not very deep and as a pulling device with a cable winch with 100 t pulling force.

Year of construction	2008
Weight	ca. 82t -110t
Max. water depth	ca. 8m
Water depth with external motor unit	ca. 15m-20m
Cutting depth	up to 6m
Output	ca. 485 HP

"Zero discharge" and "Fit for purpose" certifications issued by Germanischer Lloyd

Nessie IV:

Nessie IV is a cable and line transporter that reels off the line directly ahead of the trencher, driving in tandem with the trencher

Year of construction	2009
Weight	ca. 28t
Max. water depth	ca. 8m
Output	ca. 420 HP

Auxiliary Nessie:

Year of construction	2009
Weight	ca. 26t
Max. water depth	ca. 3m
Output	ca. 156 HP