NoteThe installation trunk is not used when a gate valve is mounted. The installation trunk is replaced with a transducer dock.
The CS90 Fish Finding Sonar can be provided with one of the following hull units.
Hull Unit |
Part number |
Lowering depth |
Transducer cables |
Maximum speed |
CS90 |
439051 |
1.0 m |
4.6 m |
20 knots |
439054 |
10 m |
20 knots |
CS94 |
439057 |
2.1 m |
4.6 m |
19 knots |
439058 |
7 m |
19 knots |
Outline dimensions drawings: - CS90: 439719 - CS94: 439723 |
The same transducer is used on all hull unit types.
Due to the different flange diameters, different installation trunks are used.
Installation trunk |
Upper diameter |
Bottom diameter |
Part number |
Drawing |
Blind flange |
CS90 |
370 mm |
273 mm |
408615 |
402509 |
051344 |
CS94 |
760 mm |
610 mm |
427423 |
427176 |
207485 |
760 mm |
356 mm |
434529 |
434524 |
The installation trunk - with a blind flange - can be ordered from Kongsberg Maritime as an optional delivery. As an alternative, the installation trunk can be manufactured by the shipyard based on the drawings in this manual. A locally manufactured installation trunk can be adjusted to better fit the properties of the vessel’s hull.
NoteThe optional installation trunk offered by Kongsberg Maritime is approved by Det Norske Veritas (DNVGL), and includes a blind flange and a rubber gasket. If the installation trunk is manufactured locally, the installation shipyard is responsible for obtaining the approval certificates from the relevant
national registry.