NAMBA Propwash October 2017.pub

I believe all the electronic parts of the system, including electric motors, need to be enclosed. Outboard electric motors are an exception. They need serious maintenance to prevent damage, especially to the bearings. Oil or Corrosion X should be applied during and after the racing. Few radio boxes will remain completely dry if submerged. A second line of defense is wrapping the receiver in balloons. People have used everything from party balloons to unlubricated condoms. I double wrap my receivers. In addition, a sponge, paper towel, or even a tampon should be in the box to absorb any leakage. If there’s evidence of water in the box after a run, I recommend untaping the box, unwrapping the receiver, and letting everything dry out. This must be done after a day’s racing to prevent corrosion. Wedging the receiver and battery in place to isolate them from vibration is also a good idea. You can check the water tightness of your radio box by submerging it and blowing down the antenna tube. Most of the time this will show that the taped cover area is where the leaks are. Of course 2.4 MHz receiver radio boxes don’t need antenna tubes except in carbon hulls. PROPWASH October 2017 7 Effect of Water on a “Water Resistant” Servo Hockey Tape 3M Tape Two Types of Receiver Balloons Balloon Wrapped Receiver in a Tunnel Radio Sponge in Receiver Area