Model #1 



TL = 1.28 + 0.00138DI + 0.0000868WT - 1.151LSL0 - 1.626LSL0 2 + 0.005076LDI 



Variable 



Cumulative 

 R-squared (%) 



Increase in : 

 R-squared (%) : 



DI 



16.39 



16.39 



WT 



19.94 



3.56 : 



LSLO 



24.47 



4.52 : 



LSLO 2 



26.71 



2.24 : 



LDI 



27.86 



1.15 : 



R 2 - 27.86%, a 2 = 0.75, F = 11.82, 4(x)F- 05 = 9.16 

 Model #2 



TL = 1.63 + 0.00139DI - . 000268WT- LSLO - 8 . 14SL0 2 • LSLO 2 + . 0672LDI -SLO 2 

 - 0.114LDI 2 /DI 



R 2 = 31 



Model # 

 TL = 1. 







Cumulative 



Increase 



in : 





Variable : 



R-squared (%) 



R-squared 



(%) : 





DI : 



16.39 



16.39 







WT-LSLO : 



22.80 



6.41 







SL0- 2 LSL0 2 : 



27.14 



4.34 







LDI -SLO 2 : 



29.79 



2.65 







LDI 2 /DI : 



31.68 



1.89 





. 68% , 



a 2 = 0.71, F = 14.19, 



4(x)F- 05 = 9.16 







3 



61 + 



0.00158DI + 0.000087WT 



- 1.10LSLO - 1.94LSL0 2 - 0.0145WINVEL 









Cumulative 



Increase 



in : 





Variable : 



R-squared (%) 



R-squared 



(%) : 





DI : 



16.39 



16.39 







WT : 



19.94 



3.56 







LSLO : 



24.47 



4.52 







LSLO 2 : 



26.71 



2.24 







WINVEL : 



27.96 



1.25 





.96%, 



a 2 = 0.75, F = 11.88, 



4(x)F- 05 = 9.16 







Model #4 



TL = 1.81 + 0.00205DI - . 000157WT • LSLO - . 0361TEMP -SL0 2 - . 00051TEMP -WINVEL 

 + 0.06535WT/DI 



Variable 



Cumulative 

 R-squared (%) 



Increase in : 

 R-squared (%) : 



DI 



16.39 



16.39 : 



WT-LSLO 



22.80 



6.41 : 



TEMP -SLO 2 



27.47 



4.67 : 



TEMP -WINVEL 



30.78 



3.31 : 



WT/DI 



33.46 



2.69 : 



R 2 = 33.46%, a 2 = 0.70, F = 15.39, 4(x)F- 05 = 9.16 



Figure 7. --Travel loaded (TL) statistics 



12 



