Gait of the American Trotter and Pacer 



more, we can close or decrease angle by lowering the heels. And, again, 

 if we leave heels untouched and shorten toe, we open or increase angle 



A 



a A 3iin. 

 fe - 5i in. 



d & 



d fc = 5Sin. 

 angle afc'5 

 dc * 2/n 



fc 



angle afc~5+ 



On ale a fa* 62* 



if- Iff*. 



FIG. 71 



at toe ; or if, after shortening toe, as in E, we raise heels by mechan- 

 ical means, such as thicker heels of shoes, we open the angle with 

 double effect, as will be seen in E quite plainly. 



