Ulstein Introduces New High-Lift Type Rudder

Ulstein in Norway recently unveiled a new high-lift rudder that combines the best features of various known rudder types and provides higher lift at large rudder angles compared with conventional flap type rudders. The new rudder is said to provide an exceptionally good effect for vessels that require high rudder forces at low speeds such as tugboats, trawlers, anchorhandling vessels, etc.

An important advantage compared with other high-lift rudders is that the Ulstein unit requires only the conventional 2 by 45-degree steering gear. The rudder gives improved rudder effect with low energy losses, in particular during trawling and at low speeds. At the same time, the transverse forces are reduced for small rudder angles, thereby reducing the chasing at cruising speeds.

The new Ulstein high-lift rudder is being marketed by Ulstein Trading Ltd. A/S, with sales offices and agents worldwide. The Norwegian firm is represented in the U.S. by Ulstein Inc. of Kenner, La., and in Canada by Ulstein Maritime Ltd. of Burnaby, B.C.

With this new high-lift rudder added to its product line, Ulstein is in the position to provide all the major equipment for the propulsion and maneuvering of a wide range of vessels.

For further information on the new high-lift rudder, Circle 142 on Reader Service Card

Maritime Reporter Magazine, page 19,  Oct 1986

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Maritime Reporter

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