PPRuNe Forums - View Single Post - Runway state decodes - these weren't in the book..
Old 29th Feb 2004, 04:18
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alf5071h
 
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LYKA, You should find an introduction to what you are requesting in a presentation given to an IATA working group:-
“Joint Winter Runway Friction Program; Aircraft Test Results.ppt” IATA APWG Briefing, September 2002 , John Croll NRC Research Officer
I cannot immediately find a web link, probably due to the file size – 7.3 mb, but an introduction to the program and the associated use of the Canadian CRFI is at: Joint Winter Runway Program.

Other info at: Friction Devices

Runway Friction Monitoring Program

For airport facilities and equipment see here:
Winter Services Yearbook

Additional information, but the links are down / broken: http://www.eraa.org/presentations/Br...BAESystems.pdf
One of the conclusions from this paper was: “There is no overall accepted certification to operational correlation between mu meters and airplanes”.

www.pti.psu.edu/pdfs/Pubs/9697Pubs.pdf WINTER RUNWAY FRICTION MEASUREMENT
One of the conclusions from this paper was:
“There is a considerable degree of confusion and misunderstanding within the U.S. aviation industry as to the importance of friction measurements and how they should be taken, reported, and used. In spite of FAA's identification of approved equipment and publication of methodologies for taking and reporting friction values during winter operations, most airports do not substantively adhere to this guidance. Subjective braking action reports generated by pilots and drivers of airport vehicles, which are commonly relied on in the United States, have no proven correlation to aircraft braking performance. Reliance on these subjective braking action reports may actually be a detriment to safety in some cases”.

Other references:
Report: NASA-99-tm209142.pdf
NPA 25G- 334 At JAA for final approval
Thomas Yager; Aircraft and Ground Vehicle Winter Runway Friction Assessment: NASA /TM- 1999- 209142
Jim Martin; Transport Canada presentation to IATA: Aircraft Takeoff Performance on Contaminated runways;
ASFT - History of Runway Friction Measurement. www.asft.se/ history. html
ICAO Annex 14, Operational Friction measurements
Try searching Google with ‘Joint Winter Runway Friction Program’
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