"(196?) Natural and manmade obstacles such as: water fording, frame twister, swampy area, washboard course, side slope, hog wallow (mud), 40% slope in a wooded area, deep ditch crossing, vertical wall and the clay pit are used to test the following vehicles: M151, M37, M35, M54, XM410, XM548, XM520 Goer, XM561 Gama Goat, XM656. Color, 33 minutes, "
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