Power Installation

The wiring diagrams shown below illustrate series circuits for one and two battery packs.

The locations of all of the additional components necessary in these circuits to operate the motor by radio control are also shown. Because of variety and personal preference, specific components are not shown. Your hobby dealer can assist you with the selection and compatibility of the components shown in these illustrations.

Caution: Be sure to include a fuse in the circuit, as shown, to protect the components and wiring from electrical overload.

    Two Battery Pack Wire Diagram

                 Click on image to enlarge


    One Battery Pack Wire Diagram

                 Click on image to enlarge


Midwest states that the Midwest MEPS-III motor recommended for this boat provides the best performance on open water when powered by two 6 to 7.2 volt, 1200 to 1400MA, NiCad battery packs, connected in series. There is enough room in the battery compartment for two of these battery packs. For operation in swimming pools, adequate performance can be obtained by using only one of these battery packs.

Warning: The battery packs described above store a great deal of electrical energy. If shorted out, they can cause burns and can start a fire. Read all warnings and cautions on these products and on the battery chargers that are used with them.

Roger's Notes:  No where in the manual does Midwest state the size of the fuse to use.  I called and talked with them and they told me that if you are using the MEPS-III motor, to use a 5 amp fuse.  If you are using another motor, use the fuse recommended by the manufacture of the motor you are using.

The placement of power components in the boat is shown on the plan. When installing the wiring from the battery packs to the motor, be certain that the wires do not come into contact with the shafts or universal, as this could cause damage to the wiring and drive. The illustration below shows the recommended placement of the battery packs and he wiring  in the battery compartment.

Motor & Universal Joint

You will need the previously fitted motor and universal to complete this sub-assembly.



Using a flat file, file a flat spot on the last 1/4" of the motor's drive shaft in the same manner as Step #280.



Following the instructions for your particular motor, install the motor on the motor mount. At the same time, install the universal, but do not tighten the set screws on the universal yet. Align the motor and universal as explained in Step #81.





Align the motor's drive shaft so the set screw on the universal is over the flat spot on this shaft. Then, tighten the set screw.





Align the prop shaft so the other set screw on the universal is aligned over the flat spot on this shaft. Then, tighten this set screw so that there is a small amount of back and forth play in the idler of the universal.