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J Burns

On 5/3/15 9:06 AM, wrote:
In the aircraft world they are referred to as a 14 volt system, with
12 cell battery systems referred to as 28 volt.

I imagine that's because automobile systems were developed to power a
starter from a battery, and, in the days of generators, you could be
down to 12 volts on the road.

Aircraft electrical systems were designed primarily to power equipment
aloft, without much variation in engine speed.