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Unrecoverable Spins

Gemini Sparkle

Key Takeaways:

  • Multiple fatal flat spin accidents in acrobatic aircraft were attributed to excessive weight and/or the center of gravity (CG) being aft of the permissible limits.
  • An aft CG condition can flatten a spin, rendering the rudder ineffective and making recovery "extremely difficult or impossible," even for experienced pilots.
  • While a standard spin recovery technique (PARE) exists, pilots must understand that the CG range for good spin recovery behavior is far more restricted than for normal flight, emphasizing the critical importance of strict adherence to weight and balance.
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In December 2000 a tower controller in southern Florida received a single radio transmission:

“Mayday mayday mayday Pitts 260DB in an unrecoverable flat spin at 3,500 feet.”

Peter Garrison

Peter Garrison taught himself to use a slide rule and tin snips, built an airplane in his backyard, and flew it to Japan. He began contributing to FLYING in 1968, and he continues to share his columns, ""Technicalities"" and ""Aftermath,"" with FLYING readers.

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