| New Advances in RC Electric Airplane Motors |
| "Going brushless" with new and super-efficient motors |
From "Radio Control Hobbies"
episode RCH-408 |
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Chris talks with brushless-motor expert Mike Hines.
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Installing a Brushless MotorMike Hines of Hobby-Lobby talks about how out-runner motors operate and why they are so efficient. He then demonstrates for Chris just how easy it is to convert a nitro-powered airplane to electric. Materials: outrunner electric motor
nylon spacers
washers
Phillips-head screwdriver
In out-runner brushless motors, the entire engine can rotates with the propeller. As seen in one that has been taken apart (figure G), the center portion of the motor is fixed and does not move. The outer part is the element that contains the magnets and rotates around the center when the coils are activated by the power coming from the battery. Since there are no brushes, none of the power is lost through arcing or mechanical drag. Since there are no parts to wear, these motors tend to be durable and long-lived.
Mounting one of these motors is fairly simple. Here are the basics steps:- Choose the appropriate out -runner engine for the plane to be converted (figure H).
- Measure the distance from the firewall to determine how many spacers, or what lengths, are needed for the prop to clear the nose of the plane.
- Insert washers and spacers onto stainless steel screws (figure I) and tighten down on all four corners.
Connect the three lead wires from the motor to the speed controller (figure J).Attach the prop (figure K).
| ALSO IN THIS EPISODE: | | New Advances in RC Electric Airplane Motors |
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