Definition
The maximum amount of nose-up/nose-down tilt (pitch) and left/right roll (bank) that an attitude indicator can accurately display before its internal gyro mechanism reaches a mechanical stop, tumbles, or otherwise fails to show a correct picture of the aircraft's attitude.
Plain English
Every attitude indicator can only handle so much climb, dive, or roll before it stops working properly. The pitch and bank limits are the point past which the instrument can no longer be trusted to show what the aircraft is actually doing.
Context Anchor
Seen in attitude indicator discussions, especially when learning how far a gyroscopic attitude indicator can be trusted during steep or unusual aircraft positions.
Derivation
Pitch comes from older uses meaning to thrust or set at an angle; in flying it means the nose moving up or down. Bank originally referred to a slope or tilted surface; in flying it means the airplane tilted left or right. Limit comes from Latin meaning a boundary, which fits the idea of the instrument’s usable range.
Why Pilots Care
Exceeding the limits causes the gyro to tumble, requiring a reset to restore accurate pitch and bank indications.
Grounding Statement
If the airplane is placed in a very steep nose-up, nose-down, or rolled position, the attitude indicator may run out of room to show that position correctly.
Intuition Check
Do not read “pitch” here as sound or “bank” as money or a river edge. In this context, pitch means nose-up or nose-down attitude, bank means left or right tilt, and limits means the instrument’s usable display range—not the airplane’s overall ability to move.
Example Sentence 1
Before practicing steep maneuvers, the pilot reviewed the attitude indicator's pitch and bank limits to know when the instrument would no longer be reliable.
Example Sentence 2
A steep turn remained within the pitch and bank limits so the gyro would not tumble.