What is the prop de-ice current draw range in amps?

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Multiple Choice

What is the prop de-ice current draw range in amps?

Prop de-ice current draw is the electrical current the heating element uses when the prop de-ice system is energized. In a typical 28-volt light aircraft, the heater needs enough power to effectively melt ice but without overloading the electrical system. Using P = V × I, a heater drawing about 26–32 amps at 28 volts delivers roughly 0.73–0.90 kilowatts of heat. That range corresponds to the practical power these de-ice systems are designed to provide, taking into account heater resistance and any control or duty-cycle factors. So the standard range you’ll see is about 26–32 amps. The other ranges either imply too little heat for reliable de-icing or too much load for normal systems, which is why they aren’t used in typical practice.

Prop de-ice current draw is the electrical current the heating element uses when the prop de-ice system is energized. In a typical 28-volt light aircraft, the heater needs enough power to effectively melt ice but without overloading the electrical system. Using P = V × I, a heater drawing about 26–32 amps at 28 volts delivers roughly 0.73–0.90 kilowatts of heat. That range corresponds to the practical power these de-ice systems are designed to provide, taking into account heater resistance and any control or duty-cycle factors. So the standard range you’ll see is about 26–32 amps. The other ranges either imply too little heat for reliable de-icing or too much load for normal systems, which is why they aren’t used in typical practice.

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