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Columnist Jim Weir comes up with what he thinks is the optimal design for getting power from the 12-volt aircraft battery to the LED without wasting any.

More Power, Scotty! I just read the article about the Arion Lightning in the...

Avidyne's new IFD540 GPS navigator will offer an easy replacement for Garmin GNS users.

Sky Polaris-a historic flight in an RV-8, part 3.