Definition
In the maneuver Eights on Pylons, the pivot points are the two ground references (pylons) the airplane is flown around so that an imaginary line extending from the airplane's lateral axis appears to remain fixed on the pylon throughout the turn. The altitude required for this to occur is the pivotal altitude, which depends on the airplane's groundspeed.
Plain English
The two objects on the ground that the pilot circles during the Eights on Pylons maneuver. The pilot picks two landmarks and flies figure-eight loops around them, keeping the wingtip lined up on each one as the airplane turns.
Context Anchor
Used when setting up and flying the eights-on-pylons ground reference maneuver.
Derivation
A pivot is the fixed point something turns around, from the Old French 'pivot' meaning hinge or pin. In this maneuver, each ground reference acts like the pin the airplane swings around — hence 'pivot point.'
Why Pilots Care
Choosing and holding the correct relationship to the pivot points keeps the airplane at the right altitude and bank, teaching precise wind correction and aircraft control.
Intuition Check
Do not think of pivot points as hinges or exact spots the airplane physically turns around. In this maneuver, they are visual reference points on the ground that help the pilot control the turn.
Example Sentence 1
Before starting the maneuver, the pilot selected two pivot points roughly a half-mile apart, both clearly visible and well clear of populated areas.
Example Sentence 2
At the correct pivotal altitude the pivot points stayed motionless on the wing tip through both turns.