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Finding Pivotal Altitude

A long-time pilot-friend of ours tells a story about his first check ride for the commercial certificate. Everything was going relatively well until the examiner asked him to perform the eights on pylons maneuver. His response was something along the lines of, Yes sir, thank you, sir, and what altitude would you like, sir? The examiner ended the check ride and told him to come back after talking with his instructor about pivotal altitude. When he did, he learned that the correct pivotal altitude for a given groundspeed allows a banked line of sight from the cockpit directly parallel to the lateral axis of the aircraft to the pylon, a stationary object on the ground. Our friend went on to be one of the first pilots to fly the Airbus A300 in the U.S., for Eastern Airlines.

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Key Takeaways:

  • The "eights on pylons" is a core commercial pilot maneuver where the pilot flies a figure eight around two ground objects (pylons), focusing on maintaining a constant "sight picture" between a fixed point on the wing and the pylon.
  • Mastering this maneuver demands precise, coordinated aircraft control (aileron, rudder, pitch) and attention division, ensuring the bank angle does not exceed 40 degrees.
  • Wind significantly complicates the maneuver by causing groundspeed variations, which in turn require continuous adjustments to bank angle and altitude (around the calculated "pivotal altitude") to keep the pylon in the correct visual reference.
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A long-time pilot-friend of ours tells a story about his first check ride for the commercial certificate. Everything was going relatively well until the examiner asked him to perform the eights on pylons maneuver. His response was something along the lines of, “Yes sir, thank you, sir, and what altitude would you like, sir?” The examiner ended the check ride and told him to come back after talking with his instructor about pivotal altitude. When he did, he learned that the correct pivotal altitude for a given groundspeed allows a banked line of sight from the cockpit directly parallel to the lateral axis of the aircraft to the pylon, a stationary object on the ground. Our friend went on to be one of the first pilots to fly the Airbus A300 in the U.S., for Eastern Airlines.

Most commercial applicants really, really don’t like the ground-reference and performance maneuvers. They know—or have a pretty good idea—that lazy eights and chandelles have little practical application in the flight levels, with steep spirals and steep turns important only when you want to be on the ground right now. And perhaps the commercial maneuver getting the least respect/greatest dislike is eights on pylons.

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