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Land And Hold Short Operations




The name for this category of procedures was previously SOIR ('''Simultaneous Operations on Intersecting Runways'''), but the guidelines for '''LAHSO''' incorporates all of the SOIR definitions and expands upon them now.

TYPES

There are three main types of LAHSO.
  • LAHSO of Intersecting Runway: In this LAHSO, a landing plane is instructed to land and hold on their runway before the intersection of it and another runway, which will have another aircraft taking off or landing when they arrive.

  • LAHSO of Intersecting Taxiway : In this LAHSO, a landing plane is instructed to land and hold on their runway before the intersection of it and a Taxiway, which will have other aircraft taxiing for landing or takeoff when they arrive.

  • LAHSO of Point on Runway: In this LAHSO, a landing plane is instructed to land and hold on their runway before a designated point. This form of LAHSO is the newest, and is used when safety precautions are needed due to hazards concerning other runways, taxiways, or any of a number of other hazards for a landing plane that may be present on their runway (ice, for instance).

  • NOTES

A LAHSO usually means a very abrupt stop for the aircraft on the short end of the procedure:
A pilot will have to take special precautions during their landing routine, make full use of the available runway (Executing the initial touch-down in the Threshold ), and braking at full capacity.

A heightened level of Situational Awareness is necessary for these procedures.

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