INVESTIGATION OF AIRCRAFT TIRE DAMAGE AGE RESULTING FROM TOUCHDOWN ON GROOVED RUNWAY SURFACES

SIMULATED LANDING IMPACT TESTS WERE CONDUCTED TO STUDY CHEVRON-CUTTING DAMAGE TO THE TREAD OF AIRCRAFT TIRES RESULTING FROM TOUCHDOWN ON GROOVED RUNWAY SURFACES. THE STUDY, INVOLVED IMPACTING NEW AND RETREADED TIRES AT SEVERAL INFLATION PRESSURES, VERTICAL LOADINGS, AND SINK RATES ON CONCRETE AND ASPHALT SURFACES HAVING A VARIETY OF TRANSVERSELY GROOVED PATTERNS AT GROUND SPEEDS UP TO APPROXIMATELY 110 KNOTS. CHEVRON CUTTING OCCURS AT THE SPOT ON THE TIRE WHICH INITIALLY CONTACTS THE SURFACE AND THE DAMAGE IS THE RESULT OF THE SCRUBBING ACTION OF THE TIRE AS IT SKIDS OVER THE GROOVES PRIOR TO ROTATION. THE EXTENT OF CHEVRON CUTTING WAS FOUND TO BE PRIMARILY A FUNCTION OF THE AIRPLANE GROUND SPEED AT TOUCHDOWN - THE HIGHER THE SPEED, THE GREATER THE DAMAGE. CHEVRON-CUTTING DAMAGE IS ESSENTIALLY INDEPENDENT OF THE GROOVING PATTERNS GENERALLY CONSIDERED FOR AIRPORT USE BUT IS DEPENDENT UPON THE NATURE OF THE SURFACE FINISH. TEST WITH DIFFERENT TIRES OF THE SAME SIZE ALSO INDICATE THAT THE TREAD RUBBER COMPOUNDING SIGNIFICANTLY AFFECTS THE EXTENT OF CHEVRON CUTTING DAMAGE. /AUTHOR/

• Supplemental Notes:
  • NASA-TN-D-6690L-7883
• Corporate Authors:

  National Aeronautics and Space Administration

  Langley Research Center
  Hampton, VA  United States  23681
• Authors:
  • Byrdsong, T A
  • Mccarty, J L
  • Yager, T J
• Publication Date: 1972-3

Media Info

• Features: References;
• Pagination: 21 p.

Subject/Index Terms

• TRT Terms: Aircraft; Airport runways; Crash tests; Landing; Pavement grooving; Pavements; Speed; Surface course (Pavements); Texture; Tires
• Old TRIS Terms: Grooves
• Subject Areas: Aviation; Highways; Pavements; Research; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00224212
• Record Type: Publication
• Source Agency: International Aerospace Abstracts
• Files: TRIS
• Created Date: Jul 16 1974 12:00AM