Cutting the fairing block
Installation
A
A
Mounting location (guidelines only)
L
L/3
L
L/3
150 - 300 mm
(6 - 12”)
300 - 600 mm
(12 - 24”)
L C
L
L
Displacement hull powerboat
The transducer will not work while it is out of the water, ensure that it is in contact with the water at all speeds. The transducer
must be mounted in an area that provides smooth non-turbulent water flow, unobstructed by keel or propeller shafts. On single-
drive vessels, if the propeller is turning clockwise, mount the transducer on the starboard side. If the propeller is turning counter-
clockwise mount the transducer on the port side. On twin-drive vessels, mount the transducer between the drives.
Stepped hull
Mount just in front of the first step and and between the
centerline and the first set of lifting strakes.
Planing hull, outboard and stern-drive
Mount well aft, and between the centerline and the first
set of lifting strakes.
Planing hull, inboard
Mount well ahead of the propeller(s) and shaft(s), and
between the centerline and the first set of lifting strakes.
Full keel sailboat
Mount in front of the keel at the point of minimum
deadrise angle and close to the centerline.
Fin keel sailboat
Mount to the side of the centerline and 300 – 600 mm
(12 - 24”) in front of the keel.
Attach the fairing block to a piece of wood
using wood screws (not included).
1
Measure the deadrise angle (
A
) at the transducer
mounting location and adjust your saw accordingly.
2
Cut the fairing block.
3
Mark the holes on the outside of the hull using the
mounting template.
1
Drill the holes.
2
Screw the M8 studs into the transducer.
Metal hulls only, install the isolator sleeves over the studs.
3
Metal hulls only, make sure that the isolatorsleeves will
cover the contact area between the hull and the studs. Use a
heatgun to shrink the isolator sleevs in place.
4
Use sand paper to remove all burrs and sharp edges to
smooth the installation surface.
5
Apply marine grade sealant or epoxy to the sanded surfaces
and to the mating edges of the fairing block. Push the
transducer through the lower part of the fairing block, and
press the assembly through the holes in the boat.
6
Apply marine grade sealant or epoxy to the sanded surfaces
and to the mating edges of the fairing block. Install the
upper part of the fairing block from the inside of the boat.
7
Apply marine grade sealant or epoxy in and round the holes
of the fairing block. Secure the assembly with the washers
and the nuts.
8
