Honda Aircraft Company
HA-420
SYSTEMS
POM
DESCRIPTION
HJ1-29000-005-001
October 30, 2016
1-171
ELECTRICAL
The electrical power system uses a split-bus architecture to power the
airplane. The primary source of electrical power is a 28 VDC engine-
driven starter-generator on each engine. Each starter-generator is air
cooled and rated at 325 Amps. A dedicated Generator Control Unit
(GCU) for each starter-generator supplies field excitation, voltage
regulation, and protection. The GCUs also supply the control function for
the generator line contactors, start contactors, and the bus tie contactor.
The aircraft is equipped with two lead-acid batteries. The batteries are
rated at 28 Amp hours each, and can start the engines and supply
emergency power. An external power receptacle is located on the right
side of the forward belly fairing.
FOR TRAINING PURPOSES ONLY
