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Langley R. Muir

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SPOT, Checked

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Navigation expert Langley R. Muir, Ph.D.s in-depth study of the SPOT Personal Tracker reveals its capabilities…and what you need to know to use it most effectively.

In Case You Missed It

Clattering About Diesels

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DeltaHawk’s DHK180 engine has received its FAA certification. Yes, that’s the same inverted-vee, four-cylinder,...

Props and Ignition Systems

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Props and ignition systems.

Around the World and Over Both Poles

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Sky Polaris-a historic flight in an RV-8, part 2.

Airing Out the Kit Question

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Why are there so few new homebuilt aircraft companies?