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I read with interest the discussion on electric only airplanes. I am
building a L-IVP with Bob Nuckolls' Z-4 electrical system (dual bus,
dual alternator, dual battery with crossfeed.) My instrumentation will
include his loadmeter, Jim Frantz' annunciator panel, and for the
primary flight data, the Sierra Flight Systems EFIS 200 and nav from
Garmin 430.

My question is simple. Other than the basic pitot-static instruments
(airspeed/altimeter/VSI) is there any other backup instrumentation that
I should consider? Should I ditch even those backups?

Comments please.

Ted Noel
http://www.bibleonly.org
tednoel@cfl.rr.com
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