"End throw" and "centre throw" refer to the way a railway wagon will project beyond the "normal" space it occupies relative to the track when negotiating corners. "End throw" is the distance the ends project beyond the outside of the curve, "centre throw" the distance the centre of the wagon projects beyond the inside of the curve. Thus, a series of wagons on a constant-radius curve will be so many chords on that circle, forming a facetted curve.

On the strength of the above I would suggest "throw angle", "chord angle", or even "facet angle", but I can substantiate none of them!!!!

Food for thought.

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Note added at 6 hrs 26 mins (2005-08-07 22:50:39 GMT)
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For trucks, there is \"jackknife angle\" which SOME people use for \"cassure\", not simply for the point where the \"cassure\" becomes too great. Trains, however, will not jackknife since their wheels are guided by rails (they will in derailments, however).

CHORD ANGLE
A gage operation which measures the angle, with respect to horizontal, of the chord whose end points are determined by the positions of two features located along a circular gage.
http://www.35pickup.com/mulligan/c.htm
[not in reference to trains, however]

http://www.railwayage.com/mar01/drawbars.html

Check this page. It's a bit windy, but seesm to cover what you're looking for.

anglaje de ruptura