nuckolls.bob(at)aeroelect
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 Posted: Wed Jul 30, 2014 6:32 am Post subject: Garmin 430W - Comm & Nav Power from Separate Busses |
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At 06:26 AM 7/30/2014, you wrote:
| Quote: | Bob,
To your question: As currently designed, the equipment list in my
panel has the comm side of the 430 as comm#2 and the nav functions
of the 430 as the primary navigation source. With an alternator
failure, I want comm#2 to be among the equipment that gets dropped
while keeping the navigation functions. The comm functions will be
handled by a different transceiver as comm#1.
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But comm#2 doesn't draw any significant power unless
you talk on it . . . so what is the ENDURANCE advantage
for shutting it down and making comm#2 unavailable
except by bringing the main bus back up?
| Quote: | And why not make the 430 the primary comm and nav source? ...Budget.
I'd like to have the full compliment of panel equipment on day one
but its likely that the 430 will be added later. Starting out with
only VFR capability and I'm planning for the full enchilada later.
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Okay, you're planning ahead . . . good show.
Do you have an battery-only endurance target?
Is your engine electrically dependent? Have
you run the numbers on battery-only flight
at end of battery life?
Bob . . .
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