Page 64: of Maritime Reporter Magazine (October 1992)

Jastram Introduces

Independent Steering

Control System

Jastram Engineering, a manu- facturer of marine hydraulic steer- ing, has introduced a unique elec- tronic control system for precise, accurate and fully independent con- trol of twin steering gears. Vessels with multiple rudder arrangements such as catamarans, workboats and commercial tankers will benefit from this system. Hydraulic or mechani- cal linkage between rudders is not required.

Each rudder or set of rudders on the vessel can be electronically con- trolled by the Jastram full follow-up amplifier system. Rudders can be selected to operate either in a fully synchronized mode (for traditional rudder operation) or independent mode (for modified turning charac- teristics or dynamic braking).

The system meets all require- ments of ABS and the USCG single failure criteria for steering systems.

A double redundancy feature is pro- vided because the vessel can be safely maneuvered by either steering gear, as well as both together.

To date Jastram has installed independent control systems on two ice class tugs, a passenger vessel and a patrol boat with catamaran hulls, and a research vessel. The company reports all of these instal- lations continue to perform very well.

Jastram produces four models of high quality steering gear, each in a range of sizes, for all types of recre- ational and commercial vessels— offering rudder torque capacity up to 100 tm. Jastram products are designed to meet the standards of the world's major classification soci- eties such as BV, CR, GL, DNV, KR,

LR, ZC, etc.

For more information and free literature from Jastram,

Circle 59 on Reader Service Card

Circle 152 on Reader Service Card

October, 1992

P.O. Box 548 • DK-9100 Aalborg Denmark

Tel.: +45 98 114000 • Fax: +45 98 103001 • Tlx: 61730 vesta dk

Represented in USA by:-

Aalborg Ciserv Aalborg Ciserv

San Francisco, Inc. Houston, Inc.

Tel.: +1 510 655 7377 Tel.: +1 409 849 2010

Fax: +1 510 655 1311 Fax: +1 409 849 8679

Tlx: 229922 acsf ur Tlx: 792720 ab bos

Aalborg Ciserv

Miami, Inc.

Tel.: +1 305 568 3300

Fax: +1 305 566 7444

Tlx: 6868800 aalborg

Aalborg Ciserv

Norfolk, Inc.

Tel.: +1 804 545 7156

Fax: +1 804 545 4763

Tlx: 244801 ciserv chpk

MEMBER OF AALBORG CISERV INTERNATIONAL GROUP

It's what you don't see in BridgeMaster that makes the difference

The new Racal-Decca BridgeMaster radars clearly represent a major breakthrough.

The explanation is a plain as day. A processing technique unique to Racal cuts through the clutter caused by rain and waves. You only see enhanced, real targets.

Spurious, misleading images aren't the only things that don't appear on BridgeMaster.

The bolt-on extras that typify the competition are notably absent.

Again the reason is simple—they come as standard with BridgeMaster.

True motion, azimuth stabilization, navigation interface and electronic plotting with 10 target capacity are all part of the most complete radars on the market.

You can choose from 14 or 20 inch displays (color or mono), 10, 25 or 30 kW X and S Band transceivers and 4, 6, 8 or 12 ft. antennae — all of them conforming to IMO.

And, if that isn't enough, full 20 target autotracking and extensive video-mapping facilities are available as fully integrated options.

To see more on what you don't see (if you see what we mean) see the address below. (Pending FCC approval.)

Booth #207 S.N.A.M.E.

Leaders in maritime navigation/communication electronics for over 75 years

Mackay Communications, Inc. 300 Columbus Circle, Edison, NJ 08837

Tel: 908 225-0909 Fax:908 225-2848 Telex: 4754132

Circle 311 on Reader Service Card 65 m Mackay