SeaKing Sidecan Sonars
0374-SOM-00013, Issue: 01
19
© Tritech International Ltd.
6. Installing the Towfish
Note
The Towfish is supplied balanced for level flight in water. Do not add to
or alter the parts as this may affect the hydrodynamic properties.
6.1. Cable and Strain Relief
Note
In order to have enough cable it is advisable to have at least 3m of cable for
every 1m of operating depth. The cable should be re-inforced with Kevlar.
The SeaKing Towfish is fitted with a strain relief mechanism which is located in the
tow arm by two cable clamps and attached by wire to the rear section. A side plate
is fitted on the tow arm to secure the cable and strain relief in place. The tow arm
is connected to the tow bar on the body using a pivot assembly and pivot pin which
is designed to shear if the Towfish is subject to impact whilst under way. This will
enable the Towfish to be recovered tail first and should prevent it from becoming
entangled.
An acetal tail cone is screwed on the rear end which can be unscrewed to enable the
removal of the safety wire and pin assembly.
If the fins hit a hard object they are designed to slide out and are secured by an elastic
cord which prevents them from being lost. This elastic cord has a loop in one end
and the safety wire should be passed through this loop before being secured with the
tail cone and pin assembly.
6.2. Communications
The SeaKing Towfish is fitted with a standard Tritech waterblock connector. This is
a 6 pin connector and is wired as follows:
