In Case You Missed It
Good Vibrations, Bad Vibrations
Mating a prop to an engine requires more than a big wrench and some safety wire. Follow along on a real propeller vibration test.
Ask the DAR
Mel Asberry answers readers’ questions on one-off engineering data requirements, how to fill out an AC 20-27G form, and how to test-fly an aircraft in the U.S. Virgin Islands.