In response to our call for innovations, Greg Stockman sent in his latest patented safety improvement, which he says addresses and corrects several common failures that cause inoperative alternators.
Now installed on a friend’s 250 Comanche and Stockman’s own Cherokee Challenger through the FAA’s field approval process, the device includes a control switch on the instrument panel, which allows the pilot to select one of two voltage regulators to excite the alternator’s field winding. An excited field winding results in the production of electrical power, Stockman explains.
Located behind the instrument panel are two Plane-Power voltage regulators. Either of these voltage regulators alone is capable of commanding the alternator to produce electrical power.
Running from the voltage regulators to the alternator are two separate wires, not one like stock aircraft have, he says. These two wires, along with the two voltage regulators, provide a redundancy similar to having two magnetos firing your aircraft’s engine.
Located at the rear of the alternator are three diodes. Each diode is about the physical size of a Motrin tablet and hardly noticeable in the wiring bundle, he continues. These diodes allow the voltage regulators to command the alternator to produce electrical power, but prevent a defective component from stopping the production of electrical power.
“I’m very excited about the impact this improvement will have on safety for single-engine aircraft,” he says.
You can reach Greg at firstname.lastname@example.org to find out more.