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<br />1000 <br /> <br />900 <br /> <br />800 <br /> <br />700 <br /> <br />+=" 600 <br />C1l <br />C1l <br />- <br />en <br />;:) <br />0 <br />~ <br />a: <br />c.::> 500 <br />z <br />z <br />a: <br />;:) <br />po- <br /> 400 <br /> <br />300 <br /> <br />200 <br /> <br />100 <br /> <br />Off Tracking Characteristics of City Delivery <br />Type Tractor-Semitrailer Unit-Maximum Off Track <br /> <br />105/6 <br /> <br />Dlf=1 <br />~ 0 0 <br />. I <br />1105/121 . <br />45/12 <br /> <br />375/6H <br />35 5/6 27 <br />25 <br /> <br />I <br />~~ <br /> <br />21 <br />19 <br /> <br />Maximum Off Track = .J wb2 + (.J tr2 . wb2 . ht)2 - .Jk02 + (.J tr~ - wb2 - ht)2 - ka2 <br /> <br />where: wb <br />tr <br />ht <br />ko <br />ka <br /> <br />105/12 = tractor wheelbase <br />50 to 1000 = turning radius <br />3.21 = front wheel track -i- 2 <br />1 = kingpin offset <br />21 & 19 = Semitrailer wheelbase <br /> <br />Maximum Offtrack + Maximum Vehicle Width <br />Maximum Track Width <br /> <br /> <br />/6. = 25 ft. Semitrailer <br /> <br />-0 <br /> <br />o <br /> <br />2.5 <br /> <br />5 <br /> <br />10 <br /> <br />7.5 <br />OFF.TRACK (feet) <br /> <br />30 <br /> <br />12.5 <br /> <br />15 <br />