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John Christian

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Round-Engine Revival

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A visit to Verner Motor in the Czech Republic. By John Christian.

In Case You Missed it

Wind Tunnel

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Pitch is not the only axis involved in making an airplane fly well. Yaw and roll are also important, and this month Barnaby Wainfan turns his attention to lateral/directional stability and its effect on flying qualities.

Industry Report: What’s Up With LSAs?

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Four years after SLSAs were approved by the FAA, dozens of companies producing more than 100 aircraft models have qualified as SLSAs. Dave Martin examines the state of the industry in light of the current economic climate.

Navigating the New FAA Airworthiness Certificate Application Program

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You’ll need access to a computer and scanner to complete this online airworthiness process.

Free Flight

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What does a video game have in common with building an airplane? More than you might think.