Biggest Stuelckenmast Floating Crane Delivered By Blohm + Voss

The 900-ton, heavy-duty floating derrick Tog Mor (shown above) was delivered recently by Blohm + Voss AG, Hamburg.

Built for Howard Doris Ltd. of Edinburgh, the derrick's hull is 101.4 meters long and 27.4 meters wide (about 332.7 by 89.9 feet).

It has been towed to Loch Kishorn yard in Scotland.

The Tog Mor, with its two gigantic inclined Stuelckenmasts, was designed for the transport and lifting of heavy objects in the building of offshore projects. It will be used especially for the assembly of large sections and modules for offshore drilling rigs and production platforms.

At the maximum capacity of 900 tons at a 50-meter (164-foot) outreach, the main hook can reach a height of 80 meters (262.5 feet) above water level. At the maximum outreach of 72 meters (236.2 feet), the crane has a capacity of 400 tons.

All loading operations can be controlled by one man in a control cabin located 10 meters (32.8 feet) above the platform deck. Additionally, a remote control system permits operation from main or platform decks, as well as from the top of one mast. All operations can be performed safely even at a list of eight degrees.

Other stories from May 15, 1981 issue


Maritime Reporter

First published in 1881 Maritime Reporter is the world's largest audited circulation publication serving the global maritime industry.