Installation manual

Simrad PI54
96
851-165187 / Rev.A
Freestanding hydrophones in blisters
For trawlers that do not have to take a pursing wir e into
consideration, hydrophones can be mounted in specially
constructed blisters offset from the vessel’s keel (preferably
1200 mm, but no less than 700 mm) to avoid turbulence.
The picture shows an example of a freestanding hydrophone
offset from the keel on a wooden vessel.
Approximate blister location, view from stern. All measurements
are approximate, and the drawing is not in scale.
(A) = Outer hull
(B) = Keel
(P) = Port hydrophone blister
(S) = St arboard hydrophone blister