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Killer Factors On Instrument Takeoffs

An instrument takeoff is just like any other takeoff, except when it isnt. The self-imposed pressures of a clearance void time, a distant appointment or passenger expectations can mean well ignore or minimize the importance of ensuring the airplane is ready, even when we need to the most. Some common problems are discussed below.

Gemini Sparkle

Key Takeaways:

  • Pilots often neglect critical safety checks during instrument takeoffs due to self-imposed pressures like deadlines or passenger expectations.
  • Factors such as excessive gross weight, unverified predicted performance, intersection takeoffs, and poor aircraft maintenance (e.g., dragging brakes or low tires) significantly reduce safety margins during takeoff.
  • Pilots should always verify expected performance, apply a safety margin, and monitor aircraft acceleration using the "71% speed by halfway point" rule as a critical go/no-go parameter.
  • An immediate abort is crucial if controls are unresponsive, trim is mis-set, or acceleration targets are not met, as continuing is almost invariably more dangerous.
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An instrument takeoff is just like any other takeoff, except when it isn’t. The self-imposed pressures of a clearance void time, a distant appointment or passenger expectations can mean we’ll ignore or minimize the importance of ensuring the airplane is ready, even when we need to the most. Some common problems are discussed below.

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