https://www.raymarine.com/en-us/supp...cument-library
1) Browse to page #2
2) Open the folder for "
Transducers - RealVision 3D"
3) Open the folder for "
RV2xx, RV3xx Thru-Hull RealVision 3D Transducers"
4) Open the folder for "Manuals"
5) Download "
RV-2xx 3D Bronze Thru-Hull Transducer Installation instructions 87335-4-EN.pdf"
Chapter #3: Installation
Section 3.3: Selecting a Location
Page # 18 shows a diagram of some good examples based on boat type.
Most look somewhat inline. I'd find the spot in the hull with the most access for installation and running wires.