Definition
Flight instruments that display information using a moving needle or pointer against a printed dial face, rather than on an electronic screen. The needle's position relative to numbers or marks around the dial shows the current value, such as airspeed, altitude, or attitude.
Plain English
Round dial instruments with a needle that points to a number, like a traditional clock face. You read the value by seeing where the needle is pointing.
Context Anchor
Seen when comparing traditional instrument panels with electronic flight displays, especially during instrument scan and unusual attitude recovery discussions.
Derivation
Analog' comes from the Greek 'analogos', meaning 'proportional'. The needle's position is directly proportional to the value being measured — move twice as fast, the needle swings twice as far. This contrasts with digital displays, which show the value as numbers on a screen.
Why Pilots Care
Pilots must interpret analog gauges accurately when flying non-glass aircraft during attitude recovery or partial panel operations.
Analogy
An analog gauge is like a clock with hands. You read the position of the hand on the face, instead of reading digits on a screen.
Intuition Check
Analog does not mean inaccurate or outdated here. It means the instrument shows the information by needle or pointer movement on a scale.
Example Sentence 1
The Cessna 172 had analog gauges across the panel, with the airspeed indicator and altimeter reading from needles on round dials.
Example Sentence 2
Many primary trainers still rely on analog gauges for airspeed, altitude, and heading.