BRAKE SHOE PERFORMANCE ON 100 TON FREIGHT CARS

The braking performance of 100-ton cars should be viewed from the ability to provide a braking level or stopping capability no less favorable than lighter weight cars. Such a performance level can not be matched by 100-ton cars with cast metal shoes at a reasonable braking ratio. However the performance criteria for COBRA shoes on 100-ton cars is to provide a stopping ability, at minimum, on less favorable than a 50-ton car with cast metal shoes. This has obvious benefits in the areas of signal spacing, high speed consideration, etc. With this stopping ability however the most advantageous maintenance and economic relationships available should be realized. With the number of existing 100-ton cars with metal shoes presently in service, together with the majority of new 100-ton cars having COBRA shoes, it has been possible to accurately measure the economic and braking performance relationships between the two brake shoe concepts. The information contained in this presentation provides a summary of data in both of these areas.

• Corporate Authors:

  Railroad Friction Products Corporation

  Wilmerding, PA  United States 
• Publication Date: 1969-2

Media Info

• Features: Figures; Tables;
• Pagination: 14 p.

Subject/Index Terms

• TRT Terms: Brake shoes; Brakes; Freight cars; Safety; Unit trains
• Old TRIS Terms: Braking systems
• Subject Areas: Railroads; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00047821
• Record Type: Publication
• Source Agency: Railroad Friction Products Corporation
• Report/Paper Numbers: RFP-111
• Files: TRIS
• Created Date: Dec 13 1976 12:00AM