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Alternative 1

Under Alternative 1, the ceiling of the two primary airspace segments used for day-to-day training would be raised to improve the high-altitude training capability. This alternative also includes an administrative change to the published times of use to align with how the complex is currently used for day-to-day training. Lastly, under this alternative the ceiling of all the PRTC airspace would be raised during LFEs and the total LFE days would be increased.

Specifically, Alternative 1 includes:

  • Actions to improve day-to-day operations:
    • Raise the ceiling of Powder River 2 and Gateway West ATCAAs from 26,000 feet to 60,000 feet
    • Change times of use to 7:00 am to 12:30 am Monday to Thursday, 7:00 am to 6:00 pm Friday, and other times by Notice to Airmen (NOTAM)
    • These changes to day-to-day training won’t change the annual total operations in the complex, but the aircraft activity would occur at higher altitudes
      • Approximately 90 percent of training time would be in Powder River 2 and Gateway West ATCAAs
      • Approximately 90 percent of training time in all of PRTC is above 18,000 feet
  • Actions to improve training capability of LFEs:
    • Raise the ceiling of all PRTC from 26,000 feet to 60,000 feet
    • Increase the total days allowed annually from 10 days to 30 days 
    • Increase duration allowed for individual LFE events from 3 days to 12 days (no weekend flying)
    • The additional LFE days could increase annual total operations in the complex up to 4,974 sorties from 3,234 sorties
      • Approximately 90 percent of LFE training time is above 18,000 feet
Changes for Day-to-Day Training (Monday through Friday)

Changes for LFE Training (up to 30 days per year)