. Report of draft gear tests, United State Railroad administration, Inspection and test section; . So//d Buffer in Car A lesir Gear CarB /mpact Velocity 336MPH JO ./5T 20 Q---Q Sec. G&ar /Pg/eose. 3$ Absorbed .30 figure77g *o m lest Gear Ato. 36in CarATest Gear No. 35in Car3. Time—Seconds Full lines represent the instantaneous kinetic energy ofthe moving cars. Dotted lines represent the energy stored and absorbedduring draft-gear cycle. Figs. 77g and 77j—Energy Curves, National M-4 Gears Draft Gear Tests of the U. S. Railroad Administration 191 600

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