Definition
Past tense of solo: to have flown an aircraft alone, without an instructor or other crewmember on board, after being authorized to do so by a flight instructor. A student pilot's first solo flight is a recognized milestone in flight training and is endorsed in the student's logbook by the instructor.
Plain English
Flew the airplane alone for the first time (or on a later solo flight), with no instructor sitting next to them, after the instructor signed them off as ready.
Context Anchor
Used when discussing a student's training progress, especially the point when the student first flies without the instructor on board.
Derivation
From the Italian 'solo' meaning 'alone,' originally a musical term for a passage performed by a single performer. In aviation it carries the same idea: the student is now performing the flight alone.
Why Pilots Care
It marks a major confidence milestone and is often recalled clearly as a turning point in training.
Intuition Check
Do not read soloed as simply “worked independently.” In aviation, it means the pilot actually flew with no one else in the aircraft.
Example Sentence 1
She soloed on her sixteenth birthday after her instructor endorsed her logbook that morning.
Example Sentence 2
Instructors often ask students to write about how they felt the day they soloed.