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Aftermath: Off to a Bad Start

Gemini Sparkle

Key Takeaways:

  • Takeoff remains the only phase of flight largely uninvaded by automation, primarily due to the complex and varied judgments required for unforeseen critical events like engine failures or obstacles.
  • Two fatal accidents illustrate the critical nature of pilot judgment during takeoff: a Beech A36 crashed due to an incorrect mixture setting and failure to abort a poorly performing takeoff, and a Pilatus PC-12 crashed after taking off with contaminated, snow-covered wings.
  • These incidents highlight a failure of pilots to adequately monitor aircraft performance, adhere to critical pre-takeoff procedures, or initiate timely aborted takeoffs, even when conditions suggested a problem.
  • The article concludes that takeoffs are far more complex and demanding than they appear, underscoring the crucial role of human vigilance and decision-making where automation is not yet feasible.
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(February 2012) Increasingly, flight is automatic. Navigation no longer requires an ounce of brains. Auto-pilots climb and descend, hold altitude, track waypoints and execute entire flight plans while idled crews ponder football scores. Autoland systems bring airplanes safely to earth, and even to the decks of aircraft carriers, in zero-zero weather. Only one phase of flight remains uninvaded by automation: the takeoff.

Too difficult? You wouldn’t think so. Certainly the basic act of taking off — throttles forward, hold centerline, rotate — could easily be automated. If there’s any complication, it’s in the element of judgment that arises — very seldom — when an engine fails, a tire blows, a deer strolls onto a darkened runway or some odd and inexplicable thing happens to befuddle and paralyze the pilot. It’s not that a computer could not deal with these eventualities as well as a human can — not always very well, to tell the truth — but rather that the possible vicissitudes of takeoff are so various, and the proper reactions to them so dependent on circumstances, that no program could foresee them all.

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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