ENGINE No. 87a 



25- 



20- 



16- 



10- 



5- 



0- 



6- 



10- 



H.P. Cyl 



100 

 80 



60 



40 



20 



- 



ENGINE No. 87b 

 L.P. Cyl. 



ENGINE No. 87c 

 H.P. Cyl. 



40 



- 20 



20- 

 15- 

 10- 

 5- 

 O- 

 5- 

 10- 



ENGINENo. 87d 

 L.P. Cyl. 



