AAR/ARCI Freight Car Fatigue Task Force II - Marts-rail.org
AAR/ARCI Freight Car Fatigue Task Force II - Marts-rail.org
AAR/ARCI Freight Car Fatigue Task Force II - Marts-rail.org
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Why Updating is Needed<br />
Current Guidelines Based on:<br />
♦1970’s and Older <strong>Car</strong> designs<br />
♦<strong>Car</strong>s used for tests all out of<br />
production<br />
♦263K GRL and lighter vs. today’s<br />
286K GRL<br />
♦Today’s tare weights are often<br />
lower<br />
♦Materials today are higher strength<br />
♦Today use of aluminum is common<br />
®<br />
© TTCI/<strong>AAR</strong>, 2010, Filename p5