Bay Boat: mounting Transducer Downrod on Flat Surfaces

Baseplates (the part that holds the downrod) can be made in a polymer material or in Aluminum and are held with either Thumbscrews or magnetic attachment.

Polymer baseplates are considered light duty. The water fished is relatively clear and the user is unlikely to run into underwater obstacles. Trolling speeds are limited to about 4mph maximum using the base Marine board and Aluminum baseplates.

Magnetic baseplates release at a slightly lower speed of 3.5mph and also release more reliably than thumbscrews. As such, they are a good choice for any type of fishing

Aluminum baseplates are considered heavy duty. The Water fished may be full of stumps, trolling speeds can be high. River fishing is likely.

Refer to the outline drawing below to determine a proper baseplate length.