Definition
The natural force of attraction that pulls objects with mass toward the center of the Earth, producing the constant downward acceleration (approximately 32.2 feet per second squared at sea level) that gives aircraft and their occupants weight.
Plain English
The steady downward pull that keeps everything on the ground and gives every object its weight. It is the force an aircraft must overcome to fly, and the force pilots feel pressing them into the seat in normal flight.
Context Anchor
Seen in instrument flying discussions about the ears, balance, and why a pilot’s body can give misleading sensations in flight.
Derivation
From the Latin gravitas, meaning 'heaviness' or 'weight.' The same root gives us 'grave' (serious, weighty). Knowing this links the word directly to the idea of weight as a downward force, not just an abstract concept of attraction.
Why Pilots Care
It creates the sensations the inner ear uses to detect orientation, which can produce powerful illusions if vision is lost.
Grounding Statement
Gravity is what makes an unsupported object fall and what gives every aircraft its weight.
Intuition Check
Do not think of gravity as only “the force that makes things fall.” In this context, gravity is also part of what your body uses to decide which way is down, and that body signal can be misleading in flight.
Example Sentence 1
In level flight, lift produced by the wings exactly balances the pull of gravity on the aircraft.
Example Sentence 2
When the airplane banks, the pilot feels gravity pulling at a new angle through the seat.