In this article and articles 2 through 5 of this chapter, unless the context otherwise requires:

1. "Aeronaut" includes any aviator, pilot, balloonist and other person participating in the operation of aircraft while in flight.

2. "Aircraft" includes a balloon, airplane, amphibian and craft used for navigation through the air.

3. "Passenger" includes a person who rides in aircraft but has no part in its operation.

4. "Seizure of aircraft" means the physical disabling or securing of an aircraft by locks, chains or other mechanical devices.