ENGINEERING ASPECTS OF LONG CAR TRACKING AND CURVE NEGOTIATION
1964
A test was conducted using long, flat cars of 89 feet length coupled with 43 inch and 60 inch couplers to short, loaded hopper cars. Photographs show the wheel lifting present when using each coupler. A summary of the push and pull tests, including the tractive effort and lateral load at wheel lift, are presented. Static jackknifing compression tests are summarized for types E and F head couplers. Results of these studies have suggested the design of 72 inch articulated coupler with a type F interlocking head.
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