The Aerobatic Box

The aerobatic box is the area in which aerobatic competitions take place. It is a block of air 1,000 meters (3,281 feet) long by 1,000 meters wide.  The upper and lower limits of the box are set based on the category a competitor is flying in.  The competitor has to stay within the lateral limits of the box and within the height limits. The lower limits of the box are, for safety reasons, strictly enforced. During competition there are boundary judges in place that determine when a competitor leaves the box. Boundary infringement penalties are subtracted from the pilot's overall score.

 

POWERED AIRCRAFT

GLIDERS

Lower Box Limits:

1500' AGL: Primary and Sportsman Categories

1200' AGL: Intermediate

656' (200m) AGL: Advanced

328' (100m) AGL: Unlimited

Upper Box Limits:

3280' (1000m) AGL: Unlimited

3609' (1100m) AGL: Advanced

3500' AGL: All Others

Lower Box Limits:

1500' AGL: Sportsman

1200' AGL: Intermediate

656' (200m) AGL: Advanced & Unlimited

Upper Box Limits:

3937' (1200m) AGL: Unlimited and Advanced

4000' AGL: All Others