Definition

A medical condition where negative G-forces cause blood to rush to the head, making everything appear red and potentially causing unconsciousness. It's significantly less fun than it sounds and tends to happen when pulling up from dives too aggressively.

Example Usage

The pilot experienced a redout during the emergency pull-up maneuver, temporarily losing vision.

Origin

Aviation medicine terminology contrasting with 'blackout' (positive G-forces), formalized in military aviation during WWII

Fun Fact

Redouts are less common than blackouts because most aircraft maneuvers produce positive G-forces, but negative G maneuvers can cause redouts at much lower G-levelsโ€”around -2 to -3 Gs.

Source: Aviation medicine and fighter pilot terminology

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