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<br />Turning Track Plot <br /> <br />Step 7. Construction-Semitrailer Turning Track Plot <br />a. Divide into increments, around the angle of turn of interest, the fifth wheel pivot center turning <br />circle obtained in the Tractor Turning Track Plot. The smaller the increments. the greater the <br />accuracy of the plot. Error tends to make track wider. <br />b. Move from original pivot point (p I ) to next point (P2) <br />c. From P2 scribe an arc equal to the semitrailer wheelbase. From page 14, Semitrailer Wheelbase <br />= S . (48" + KS) = 480. (48 + 36) = 396" = PI BL = P2 BL2' etc. <br />d. Draw line a.a through P2 & BL (BL = semitrailer tandem center) <br /> <br />rT396 <br /> <br />Scale: 1 Inch <br /> <br />200 inches <br /> <br />396 <br /> <br /> <br />PI <br />~P2 <br /> <br />-La <br /> <br />BL <br /> <br />BL2 <br /> <br />48 <br /> <br />T.C. <br /> <br />'. <br />'\ <br />\ <br />\ <br />\ <br />\ <br />\ <br /> <br />. <br /> <br />\ <br /> <br />. <br /> <br />\ <br /> <br />. <br /> <br />\ <br />\ <br /> <br /> <br />fifth wheel <br /> <br />pivot center <br />turning circle <br /> <br />I <br /> <br />-TT <br /> <br />-'-- <br />'--- <br />. """ <br />" <br /> <br />_900 <br /> <br /> <br />22 <br />