Figure 3-16a The principles of laser-beam technology. Mean Ground Surface Reference Plane Laser Bear Receiver v= constant R R._a -^P mg wheels with fixed blade, (2) rigid floating beam with fixed blade, (3) floating rigid beam ... 3-16 ). where the hitch pin (H) is located several feet foward ... Plows in classes (4) and (5) above have virtual beams formed by the linkage system attached to the blade.
|Title||:||Farm Drainage in the United States|
|Author||:||George A. Pavelis|