NASA Spinoff Database: Train Analysis

NASA Center: Jet Propulsion Laboratory
Public Release Year: 1985
Reference Number: JPL-SO-81
Category: Environment And Resource Management
Origin: NASA Running Resistance Technology

Running resistance, the combined resistance induced by aerodynamic drag and mechanical friction, absorbs about 16 percent of railroad budget and maintenance costs. In order to study these losses, AT&SF Railroad entered into a joint research project with the Jet Propulsion Laboratory. Various train configurations were tested when the resulting data was computer analyzed. The Coast-Down Technique was estimated at one percent accuracy. AT&SF is evaluating the data further.

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Page Number in Published book: 90-91

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