Page 49: of Maritime Reporter Magazine (October 1988)

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sive experience in the marine industry.

AMSEA is a wholly owned subsidiary of the

General Dynamics Corporation, formed to man- age and operate five Maritime Prepositioning

Ships (MPS) which were constructed by the former Quincy Shipbuilding Division.

AMSEA was recently awarded three contracts to be the ship's manager of 12 Ready Reserve

Force (RRF) ships.

Fourth Canadian Shipbuilding

And Offshore Exhibition (CSOE)

Included With CMIA In 1989

The 41st Annual Technical Conference of the

Canadian Maritime Industries Association (CMIA) (formerly the Canadian Shipbuilding and Ship Repairing Association) to be held at

Montreal's Queen Elizabeth Hotel, February 20 and 21, 1989, will include the fourth Canadian

Shipbuilding and Offshore Exhibition (CSOE),

CMIA president Jim Clarke recently an- nounced.

CSOE '89 will give exhibitors an opportunity to display or explain their goods and services at the largest technical marine conference in Cana- da. Exhibitions such as CSOE '89 help bring together all interested parties in the marine industry. CSOE has developed into a major component of the technical conference.

The CSOE '89 exhibition will be located on the convention floor opposite the technical con- ference meeting rooms. Exhibition hours will be 2 p.m. to 6 p.m. on Monday, February 20, and 10 a.m. to 5 p.m. the following day.

Hitachi Zosen Delivers 755-Foot Containership

The Yamaaki Maru, powered by a Hitachi Zosen B&W die- sel engine with a maximum continuous output of 32,310 horsepower by 88 rpm, achieved a maximum trial speed of 25.315 knots.

Hitachi Zosen Corporation's Ariake Works recently completed the containership Yamaaki

Maru and delivered it the same day to its owner,

Palace Container Shipping Corporation.

The ultramodern Yamaaki Maru, approxi- mately 755 feet long, 104.9 feet wide and 70.5 feet in depth, is capable of carrying 2,832 TEU containers and 249 forty-foot air-cooled refriger- ation containers in four tiers on deck. A specially designed bulbous bow is adopted to save fuel costs, while a stern bulb is fitted to reduce hull vibrations.

The main engine is a Hitachi Zosen B&W 9L80MC diesel, the most advanced of its type.

Navigation equipment includes automatic radar plotting aids (ARPA) and a satellite navigation system.

For free literature giving full details on the facilities and capabilities of Hitachi Zosen,

Circle 56 on Reader Service Card Circle 221 on Reader Service Card

Rotary Vane Steering Systems

High performance steering for control and maneuverability when you need it most.

Wagner Rotary Vane Steering provides precise, dependable rudder control. These compact, efficient steering systems are proven performers in applications demanding high torque ratings in a small package.

The compact size, rugged design, and low inertia make the rotary vane suitable for high performance applications where

I'asi response to steering controls is needed.

Smaller than rapson slide or cylindcr-and-tiller steering systems hav ing comparable torque ratings, the Wagner rotary vane actuator conserves space and allows the designer greater utilization of available hull and deck areas. The Wagner rotary vane typically requires only 2()'< of the deck area of equivalent rated cylinder-and tiller system; and only I4'( of the area of an equivalent rated rapson slide actuator.

Rotary Vane Steering

Model

Rudder

Angle-

Torque

Rudd

Dia tin r Stock

Tieter hes)

Size

Height 1 inches

Size

Width (mc hes

Weight

Appro* pounds

HI 6 2.35 45 60 1 1.570 4 53 5 12 1 0 63 15 75 430 r< 2 5 2*35 45 60 18 080 5 12 5 91 13 39 18 90 650

R 4 0 2*35 45 60 28 930 5.'J 1 1, 89 15 55 19 53 1 100

R 6 3 2*35 45 60 45 470 6 89 7 87 17 72 22 44 i 000

R 100 2*35 45 60 72 330 7 87 9 25 20 24 25 98 2.000

R 16 0 2x35 45 60 115 700 9 25 10 83 24 41 30 31 3 500

R 25 0 2x35 45 6C •80.800 10 83 12 4C 27 36 35 4,' 5 600

Rjr o 2*35 45 289 300 12 40 ' -1 57 31 50 38 19 7 400 •Rudder Angle can be selected from 2 35 degrees Id 2 » 60 oegrees

Maneuverability is obtained from the w ide range of t udder angles that are standard with the Wagner rotary vane actuator.

Rudder angles up to 2 x 60 degrees are standard: and angles up to 2 x 70 degrees are optionally available depending on model.

R2 5 and R16

And unlike cylinder-and-tiller and rapson slide steering systems, the torque output is not dependent on rudder angle. So the full capability of the steering system is always available when needed.

Reliable and maintainable. The simple, rugged design incorporates self-lubricating rudder thrust and radial bearings, and integral rudder slops within the unit. Torque is applied symmetrically for a balanced loading of the rudder stock. And the Wagner rotary vane has external protective valving and long-life dynamic seals to minimize down-time and maintenance during servicing and operation.

Seal technology is the greatest challenge for rotary vane actuators. Through on-going research the Wagner rotary vane design has adv anced seal technology lo achieve low internal leakage at operating pressures of 1500 psi. allowing higher (orque-to-si/e performance and lowering the total eost of the steering sy stem.

I he Wagner rotary vane steering system can be obtained w ith a wide \ ariety of control sy stems appropriate to the application ami customer's requirements. Control sv stents av ailable include hydraulic or electric full-follow-up steering for accurate high performance sy stems, electric non-follow -up sleet ing for last maneuvering, and manual hydraulic steering for low cost applications on smaller v essels. And of course.

Wagner rotary vane steering is easily interfaced lo all makes of marine autopilots and steering control systems.

Simple, rugged, compact and efficient, the Wagner rotary vane steering performs solidly in the most demanding applica- tions.

Illcrc lI U

Wayne! I neiiKvnni! I.til.. 4(1 ( \ortli VanctHi\ ei. It.<'.. ( .mat iostick I'Uv i \ 7\i ic:

Please send informal cn on Wagner's Rotary Vane Steering Systems

Wagner medium pressure rotary vane steering systems provide precise dependable rudder response in all sea condit ons

Name

Title

Company

Stree-

Wagner Engineering Ltd.. 40 Gostick Place

Nnrlh Vancouver. B C

Canada V7M 3G2

Telephone (604) 988 111 1

Telex 04-352755

Telefax (604) 988-8809

Represented in over 60 countries — dependable since 1937

City/Country

Phone or Telex

High performance steering for control and maneuverability when von need it most.

The Cates #5 and #7 60-foot 1800 bhp twin screw berthing tugs (shown above) maintain effective control over vessels in the 30.000-40.000 deadweight ton class with Wagner rotary vane steering systems. Using the Wagner R6.3 rotary vane steering system driving 4 rudders through rudder angles up to 55 degrees at hardover-to-hardover times of 5 seconds, these Robert

Allan Ltd. designed tugs have exceptional maneuverability and a turning circle of 90 feet under full power.

October, 1988 5

Maritime Reporter

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