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United States Department of Transportation United States Department of Transportation

General

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MasterRNAVs - 12/26/2024 (GPS/WAAS Approaches)

The availability of Wide Area Augmentation System (WAAS)-capable approach procedures is a significant enabler of WAAS benefits in the United States. View the latest status of U.S. WAAS approach procedures.

Caitlin Locke

Caitlin Locke, Executive Director, Aircraft Certification Service (AIR-1)

Caitlin Locke is the Executive Director of the Aircraft Certification Service (AIR). In this role, she oversees type certification, production approval, airworthiness certification, and continued airworthiness of the U.S.

General Aviation and Part 135 Activity Surveys - CY 2023

Chapter l: Historical General Aviation and Air Taxi Measures 

  • Table 1.1 – GENERAL AVIATION AND PART 135 NUMBER OF ACTIVE AIRCRAFT BY AIRCRAFT TYPE 2012-2023
  • Table 1.2 – GENERAL AVIATION AND PART 135 NUMBER OF ACTIVE AIRCRAFT BY PRIMARY USE 2012-2023 (AIRCRAFT IN THOUSANDS)
  • Table 1.3 – GENERAL AVIATION AND PART 135 TOTAL HOURS FLOWN BY AIRCRAFT TYPE 2012-2023 (HOURS IN THOUSANDS)
  • Table 1.4 – GENERAL AVIATION AND PART 135 TOTAL HOURS FLOWN BY ACTUAL

Space Weather

Space Weather (SWx) refers to the variable conditions on the Sun and in the space environment that can influence the performance and reliability of space and ground-based technological systems and endanger human health. Adverse SWx, such as solar flares, solar radio bursts, solar energetic particles, galactic cosmic rays, and geomagnetic disturbances, occur relatively regularly, with some having quantifiable effects on essential infrastructure systems and technologies. These can include...

Art Sheffield

Acting Air Traffic Safety Operations Oversight Division Director, 
Air Traffic Safety Oversight Service, AOV-200

Art Sheffield is the Acting Air Traffic Safety Operations Oversight Division Director for the Air Sheffield photo

Aspen/Pitkin County Airport (ASE)

Aspen-Pitkin County/Sardy Field is a small, single runway airport located in the Roaring Fork Valley just 2.5 miles northwest of the resort town of Aspen, Colorado. It has associated Class Delta airspace and is surrounded by rapidly rising terrain from the northeast through the southwest. ASE is a high altitude airport with a field elevation of almost 8000’. A high density altitude will affect aircraft performance all year round but especially in the summer.