564 Mr. John Wylie on Graphical 



Let AxBi be steering direction in first belt. Draw 

 tangent BjT, and mark off T 1 Y 1 =t7 1 = l. Then A 1 V 1 = K 

 the constant for this particular path. Cut off 



A 2 V 2 =A 3 V 3 =A 4 V 4 =K. 



Fig. 7. 



Measure down 



V 2 T 2 = 2, V 8 T 8 =3, V 4 T 4 -2. 



Draw the tangents T 2 JB 2 , T 3 B 3 , T 4 B 4 . Then A 2 B 2 , A 3 B 3 , 

 A 4 B 4 will be the corresponding steering directions, 



A 2 fe 2 ^Aj x\.go 3 := Oj A 4 o 4 ^^ii, 



