UPGRADED TRAIN BRAKE PERFORMANCE RESULTING FROM 1972 BRAKING RATIO DEFINITIONS

Braking ration in its specific terminology is merely an expression of the percentage of car weight which is translatable to total brake shoe force. In the past few years the AAR has systematically addressed their attention to recognizing and establishing some degree of limits on several of the variables which effect brake performance. With the advent of composition brake shoes, a performance specification was adopted which, in effect, set acceptable maximum and minimum friction levels for this type of brake shoe in both "stop" type braking and continous horsepower or grade braking. Essentially this redefinition of braking ratio eliminated the rigging loss variable as a factor influencing brake performance.

• Supplemental Notes:
  • Presented at the Air Brake Association Annual Meeting, Chicago, Ill., Sept. 19, 1972.
• Corporate Authors:

  Westinghouse Air Brake Company

  Wilmerding, PA  United States 
• Authors:
  • Janke, J C
• Publication Date: 0

Media Info

• Features: Figures; Tables;
• Pagination: 19 p.

Subject/Index Terms

• TRT Terms: Brakes; Braking; Ratios
• Old TRIS Terms: Braking ratios; Braking systems; Rigging loss
• Subject Areas: Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00047823
• Record Type: Publication
• Source Agency: Westinghouse Air Brake Company
• Files: TRIS
• Created Date: Dec 13 1976 12:00AM