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Ask the DAR
Mel Asberry - 0
NX numbers on older designs, logbook records, proving compliance with the 51% rule.
Engine Beat
Steve Ells - 0
As Lycoming and Continental vie for market share, the two power players are updating and improving long-existing engine designs and introducing new products to meet demand. By Steve Ells.
Wind Tunnel
Reducing drag is the best way improve the performance of an airplane.