...systems gone the way of $2-a-gallon avgas. That's just fine because electrical systems are so much more reliable, right? How much redundancy does the FAA require for an all-electric aircraft to fly IFR?

a. Two alternators and two batteries

b. Two alternators and one battery

c. Two batteries and one alternator

d. There is no specific requirement

2. The horizontal situation indicator (HSI) on most glass-panel systems in light aircraft combine what traditional flight instruments?

a. An attitude indicator and a heading indicator

b. A heading...

NOTE: All illustrations and photos have been removed from this article.




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On the air., November 01, 2007

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