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Dan -
We put Bob's Z-14 in our ES - same alt and battery setup as you suggest. We added ground power to it. We put the avionics on the small alternator. We have two 20 AH Panasonic batteries and one of them cranks the big IO-550N easily. This setup is pretty much an avionics buss and main buss setup. Adding an essential buss adds complexity, cost and more failure points. I don't mind shutting down parts of the load that are not critical.
Regards,
JOhn Schroeder
LNCE - Flying
I am (like a lot of us) doing a dual alt/dual battery system. 70 amp
alt as a main with a 20 amp alt as an Aux. In thinking about the bus
setup and looking over Brent's list (thank you Brent), I was wondering
if an essential bus is really essential. If I split the loads
between the main and aux systems and have a crosstie , the only thing
an essential bus gives me is a list of items that I do not want to
shed. Granted this is automatic, but does add a little to the
complexity. I am planning on doing something like Bob Nuckolls' Z-14.
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