Simple DC electrical supply systems are classified either as:
Uni-pole or Di-pole
What is a unipole DC electric aircraft system?
System where aircraft is made of conductive material to allow structure to be used as ground
What is a di-pole DC electrical aircraft system?
System where aircraft is not made of conductive material
The negative side of DC generator in an aircraft is connected to
The airframe
the negative connection of an electrical consumer in the aircraft will be connected to:
The airframe
The reason why the generator voltage should be higher than the battery voltage:
To keep the battery fully charged