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Departure Alternates

Aviation Safety recently ran two articles, in the December 2014, and January 2015 issues) on the various considerations involving low-weather IFR departures. Under FAR 91, if we can find the runway in the fog, its legal to launch. Somewhat Darwinian, but legal.

Gemini Sparkle

Key Takeaways:

  • While legally permitted under FAR 91 to depart in low-visibility IFR conditions if the runway is visible, this rule overlooks the critical need for a safe landing option if an immediate return is necessary.
  • Pilots must prioritize planning for a "departure alternate" airport in case unforeseen circumstances necessitate an immediate landing shortly after takeoff.
  • Identifying suitable departure alternates is becoming increasingly difficult due to airport closures, challenging terrain, and widespread adverse weather, significantly increasing the risk of launching without a viable option.
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Aviation Safety recently ran two articles, in the December 2014, and January 2015 issues) on the various considerations involving low-weather IFR departures. Under FAR 91, if we can find the runway in the fog, it’s legal to launch. Somewhat Darwinian, but legal.

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