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Aviation Dictionary

Directional stability

Stability about the vertical axis of an aircraft, whereby an aircraft tends to return, on its own, to flight aligned with the relative wind when disturbed from that equilibrium state. The vertical tail is the primary co...

Dictionary Term

Directional stability

Definitions

  • Stability about the vertical axis of an aircraft, whereby an aircraft tends to return, on its own, to flight aligned with the relative wind when disturbed from that equilibrium state. The vertical tail is the primary contributor to directional stabil
  • Stability about the vertical axis of an aircraft, whereby an aircraft tends to return, on its own, to flight aligned with the relative wind when disturbed from that equilibrium state. The wing design is the primary contributor to directional stability, causing a WSC in flight to align with the relative wind.
  • Stability about the vertical axis of an aircraft, whereby an aircraft tends to return, on its own, to flight aligned with the relative wind when disturbed from that equilibrium state. The pendulum design is the primary contributor to directional stability, causing a PPC in flight to align with the relative wind.

References

  • Airplane Flying Handbook, Federal Aviation Administration, 2021
  • Powered Parachute Flying Handbook, Federal Aviation Administration, 2007
  • Weight-Shift Control Aircraft Flying Handbook, Federal Aviation Administration, 2008