Raymarine ST40 - Manual (Page 22)

Chapter 3: Installation 13
57 mm
(2.25 in)
51 mm
(2.0 in)
D4643-1
Note: If you intend fitting a nonstandard transducer, extra tools may
be required
Site requirements
Transducer
The transducer types required for the various hull types are as follows:
Hull material Transducer type
Glass reinforced plastic (GRP) M78713 Through hull plastic
Steel (supplied as standard) or
Aluminium M78718 Retractable through hull
Wood M78714 Through hull bronze
Other transducer types are also available for specific requirements. For
further details, contact your local Raymarine dealer.
75 mm (2.94 in)
diameter
5mm (0.19 in)
75 mm (2.94 in)
diameter
51 mm (2.0 in)
diameter
89 mm (3.50 in)
D4445-2
Plastic through-hull depth transducer dimensions
158_2c03.p65 01/05/01, 13:56 13