Advances in the Characterization of Supercooled Clouds for Aircraft Icing Applications

Approximately 28,000 nautical miles (52,000 km) of select, in-flight measurements of cloud water concentrations, droplet sizes, temperatures, and other variables in supercooled clouds over portions of North America, Europe, and the northern oceans have been condensed into a computerized database for deriving a worldwide, statistical description of aircraft icing conditions aloft. The data are compared with the currently accepted envelopes of icing cloud variables specified in Title 14 Code of Federal Regulations Parts 25 and 29 Appendix C for the design of aircraft ice protection equipment. There are differences, along with some deficiencies, unrealistic trends, and difficulties in the use of Appendix C. As a result, suggestions are made for updating, modernizing, and improving the currently accepted envelopes in Appendix C.

• Record URL:
  http://www.tc.faa.gov/its/worldpac/techrpt/ar074.pdf
• 
• Corporate Authors:

  Federal Aviation Administration

  William J. Hughes Technical Center, Airport Technology Research and Development Branch
  Atlantic City International Airport
  Atlantic City, NJ  United States  08405

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Jeck, R K
• Publication Date: 2008-11

Language

• English

Media Info

• Media Type: Print
• Edition: Final Report
• Features: Appendices; Figures; References; Tables;
• Pagination: 138p

Subject/Index Terms

• TRT Terms: Aircraft industry; Aircraft operations; Aircraft pilotage; Clouds; Control systems; Icing; Supercooling; Winter maintenance
• Subject Areas: Aviation; Data and Information Technology; Maintenance and Preservation; I62: Winter Maintenance;

Filing Info

• Accession Number: 01135219
• Record Type: Publication
• Report/Paper Numbers: DOT-FAA-AR 07-4
• Files: TRIS, USDOT
• Created Date: Jul 21 2009 8:11AM