Simrad Introduces New Trawl Echo Recorder- Literature Available

A new Skipper Trawl Eye System for echo recordings from the trawl mouth is now available from Simrad, Inc. of Armonk, N.Y. The system includes a transducer unit for trawl headrope mounting, special "twin-flex" cable and selftensioning hydraulic cable winch, and a Skipper 603 six-inch recorder cabinet, all at a moderate cost.

Designed specifically for midwater trawl operations, the Skipper Trawl Eye is said to give an excellent picture of the situation in the trawl mouth. With the transducer pointed downward, the recorder shows fish in the trawl mouth, the trawl footrope, fish below the trawl, and the distance from the trawl to the bottom.

Fishermen report c o n s i s t e n t ly better hauls with the Trawl Eye, since they can adjust trawl depth to the densest part of the fish schools, while keeping the footrope off hard bottoms.

The transducer unit consists of a reinforced plastic housing c o n t a i n i n g a 50 kHz ceramic transducer. A Skipper Model 603 (6-inch) or Skipper Model 802 (8-inch) recorder is used as the Trawl Eye Recorder. Either can also serve as a backup unit for the vessel's main recorder by installing an extra hull transducer.

The headline transducer is connected to the vessel by a new type of "twin-flex" cable that is very light, yet has a t e n s i le strength of 1,400 pounds. The cable is run from a small self-tensioning winch, normally located behind the wheelhouse, then fed through a stern snatch block that is also supplied with the system.

The hydraulically operated winch is driven by an electric motor from either 220 volts ac 3-phase or 24 volts dc.

For free literature and complete information, write to Gil Nelson, Simrad, Inc., Dept. MR, One Labriola Court, Armonk, N.Y.


Maritime Reporter Magazine, page 8,  Aug 15, 1980

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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.