Airport Ground Support Equipment worked example

Airport Ramp GSE Duty Cycle Capacity at 99% gse equipment availability: a worked example

Push gse equipment availability up to 99% and the picture changes. This example computes every intermediate figure at that operating point. an airline ramp manager needs to check whether available GSE can cover planned aircraft turns

The inputs for this scenario

  • Aircraft turns supported per cycle: 5 turns/cycle (unchanged)
  • Available ramp operating cycles: 72 cycles (unchanged)
  • GSE equipment availability: 99 % (raised for this scenario; the documented default is 88)
  • Completed-turn service yield: 96 % (unchanged)

Working through the calculation

  • Applying the documented formula (Gross ramp turn capacity = aircraft turns supported per cycle × available ramp operating cycles) to the inputs above produces each figure below.
  • At this operating point the engine returns 342 aircraft turns for usable ramp turn capacity, the number this scenario is built around.
  • At this operating point the engine returns 360 aircraft turns for gross ramp turn capacity.
  • At this operating point the engine returns 3.6 aircraft turns for turns lost to gse unavailability.
  • At this operating point the engine returns 14.26 aircraft turns for turns lost to incomplete service cycles.

How this compares with the baseline

  • Against the tool's baseline example, where gse equipment availability sits at 88% and the headline result is 304 aircraft turns, this scenario comes in 12.5% above the baseline at 342 aircraft turns.
  • It computes usable aircraft turn capacity by taking gross capacity (turns per cycle times available cycles) and derating it for GSE availability and completed-turn service yield. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.

Results at a glance

  • Usable ramp turn capacity: 342 aircraft turns (headline result)
  • Gross ramp turn capacity: 360 aircraft turns
  • Turns lost to GSE unavailability: 3.6 aircraft turns
  • Turns lost to incomplete service cycles: 14.26 aircraft turns

Run it with your numbers

  • Every input above is editable in the live Airport Ramp GSE Duty Cycle Capacity calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.