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Aircraft general knowledge
8.6.4 The electrical system
Here is a diagram of the electrical system in a Cessna 172.
8.6.4.1 The electrical system
The electrical system in the aircraft consists of a battery, 12 or 24 volts, which
drives the starter. When the engine is running, the generator (ALTernator)
produces electricity.
The voltage produced is an alternating voltage, which is rectified to a direct
voltage of about 14 V or 28 V, which is necessary to charge the battery.
Flyveteori PPL(A)(UL)/LAPL Henning Andersen, Midtjysk Flyveskole© 2025 717
