Modifications

Up Details Modifications Sailing Other Examples

 

 

 
Out of the box, the boat came with plastic props.  I replaced these almost immediately with a pair of Octura X447 counter rotating props.  Since the stock props are permanently connected to the prop shafts, new prop shafts must be purchased.  Octura also provides these  under part number OCGCSS.  Changing the props makes this boat quite a bit faster.

Between the props, you will notice a brass tube attached to the transom.  This is a water cooling pickup that I added for the ESC.   The motor water cooling pickup is mounted on the bottom of the boat, forward of the transom as pictured here.

The engine compartment has been modified by the addition of two water cooling systems.  One system has the water pickup mounted to the transom.  This cools the ESC.  The original ESC was modified by drilling the heat sinks and inserting a aluminum tube though both of them.  The tubes are connected together at the bottom by a piece of rubber tubing.  The water is dumped out the back of the boat though another brass tube mounted though the transom.  This system works very well as the ESC stays cool.

The other water cooling system has a pickup mounted on the bottom of the boat that draws water into a T fitting that is connected to the engine cooling tubes.  I wound the 1/8th inch tubes around a D size battery and then placed them on the motors.  The water exits via brass tubes inserted though the side of the boat.  This system works ok.  The motors still get warm but not nearly as hot as they use to.  Also, the boat can be run repeatedly without waiting for it to cool down since the motors never get overheated even after several consecutive runs.

Here is another view of the engine bay.  Notice the water cooling tubes exiting the side of the boat.
On both sides of the boat are brass tubes that act as water discharge tubes for the motor water cooling system.

Last Modified: 08/28/2008

  
  Last Updated: 08/28/2008