Tarragon

Just because real roosters don't fly doesn't mean that a 100%-original aircraft designed and painted to resemble one wont.

The rules around Letters of Deviation Authority are labyrinthine, which helps explain why they are relatively rare. But the problems could be—and should be—corrected through a few regulatory changes. By Roy Beisswenger.

Checkpoints: Diagnosis

Compared to the high cost of horsepower, reducing drag is a much less expensive way to go faster.