Transducer Mounted On A Drop Keel - Simrad ES70 - INSTALLATION REV A Installation Manual
Fish finding echo sounder
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Also See for ES70 - INSTALLATION REV A:
- Operator's manual (96 pages) ,
- Reference manual (226 pages)
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Transducer mounted on a drop keel
The use of a drop keel with the purpose of stabilising the vessel is well known.
A drop keel is also a superior platform for echo sounder transducers. Such instrument
keels have been built, mainly on research vessels, often protruding as far as three meters
below the hull. At that depth, the water is free of air bubbles up to very high sea states.
The vessel is then able to perform reliable acoustic measurements in open sea a larger
part of the year.
A
Instrument keel shaft
Lowered position
B
C
Bottom view
343522/A
Transducer Installation
133
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