Thread: 12 or 24V?
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Old 03-29-2017, 01:39 PM
jwoolard jwoolard is offline
Join Date: Sep 2015
Location: Sevenoaks, UK
Posts: 20

I think the main advantage of 24V systems in small aircraft is engine cranking power and battery endurance after a failure.

With modern starters engine cranking isn't an issue.

Arguably the default battery on the -14 doesn't have enough power for proper IFR endurance. At least two builders have gone with a full dual bus architecture to counter this, and lots of others are putting in two alternators and backup batteries for EFIS devices.
Building an RV-14A with my wife in the UK
Dues paid Nov '17
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