Composite Research, Inc.

Composite Research, Inc.
Makers of Sundance, Sea Born, and Spyder Boats

Author: admin

My P58, P48, P52, P66, TM256, TM258, TM260, TM270W transom-mount transducer is not working well at speeds above 10 knots. What can I do?

Transom mount transducers—while they are the easiest to install, can be the hardest to get working properly at speed. Fine
adjustments are needed for good high speed performance.

Please check the following for troubleshooting your transom mount transducer:

  • Transom mount transducers will not work at any speed if they are installed on a powerboat boat with inboard motors,
    or any sailboat.
  • If you have a single engine outboard, or I/O, make sure that the unit is mounted on the starboard side of the boat, so it is
    free from most prop wash.
  • If you have a twin, or triple engine outboard, or I/O make sure that the unit is mounted between the motors, as low as
    possible, either on the flat section of the keel (if any), or slightly left or right of the vee.
  • If you are still seeing poor performance at speed, this usually indicates that the transducer needs to be mounted lower
    so that more of the face of the transducer is in contact with the water at speed.
  • To make this adjustment, loosen the mounting screws, and slide the transducer 1/2″ lower and re-test. You may need to
    re-drill holes. If you do so, be sure to seal the old holes with manufacturer approved, below the waterline caulking or
    epoxy.
  • You also may want to add another plastic wedge (supplied with the installation kit) so that when looking at the side of
    the transducer the back or stern of the transducer is noticably lower than the bow or front of the transducer. This angle
    will not affect depth readings. Doing this adjustmant will help keep the transducer in hard contact with the water at
    higher speeds.

The picture below illustrates lowering and angling your transom mount.

I’d like to add a top on my FX21 Bay. Any advice?

First, the Front legs need to go into the small notches which intersect the front console face and console front seat. In the rear, the back legs need to go inline with the back face. Below, there are
aluminum plates under the floor for the legs of your top. Additionally, the floor is cored with 3/4″ structural foam with glass on both sides and then the 1/4″ aluminum plate.

Please Note: Located at the center of the cockpit under the floor board is the fuel tank, when adding your top be aware of this location and avoid drilling in this area. Also be aware that the fuel fill hose is on the port side about 10″ forward of the back face of console. From the inspection hatch, you’d be unable to determine the fuel line’s direction and path.

This knowledge base entry is meant to serve as basic information for the installation of a third-party, aftermarket top. Before attempting any such an install, we strongly recommend you seek professional assistance.

Inshore vs Offshore Fishing: The Real Deal

Call it what you will, blue-water fever, inshore, flats, we all have our preferences when it comes to our favorite species of fish and the waters we enjoy. As for how we get there, the styles of boats are endless from small skiffs or bay boats to large sport-fishing battle wagons.  What might not be clear to a would-be angler, what are the real, down and dirty differences between offshore and inshore fishing?

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