PRINCIPLES OF NAVAL ENGINEERING 



INNER DEAD CENTER 



RIGHT HAND ROTATION 

 ENGINE 



INNER OEAO CENTER 



LEFT HAND ROTATION 

 ENGINE 



LEFT HAND - ' , ' "^-^^ RIGHT HAND 



ROTATION ENGINE "*1 l2Vt.l2t* ROTATION ENGINE 



LOWER CRANK LEAD ^ 



Figure 22-9.— Lower crank lead, opposed-piston engine. 



556 



75. 9X 



