Figure 11-18.—Angle blade.Figure 11-19.—“U” blade.be drifted short to medium distances. Blade curvaturelifts the dirt high with a rolling action to lower resistanceand speed drifting. These blades have the side advancedahead of the center section and tilt up to 15 degrees, rightand left.ANGLE BLADE.— The angle blade (fig. 11-18) isa multipurpose tool that can be used for general dozingand for the side casting of materials. The angle blade canbe positioned straight ahead or angled 25 degrees to11-8either side. The moldboard has a greater curve than astraight blade to produce more rolling action.“U” BLADE.— The “U” blade (fig. 11-19) driftslarge volume loads efficiently over long distances. Thecenter section lifts material high with a forward roll. Theside sections are angled so they lift and roll materialsinward, keeping the load centered with a minimum lossof material to the side. This type of blade has the sideswell advanced ahead of the center section, causing a “U”shape. It may also be tilted 15 degrees, right or left.
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