The gas combusted within {HEAD ~ the combustion chamber} through the above mentioned process is then rapidly removed from {TAIL ~ the combustion chamber} 
The gas combusted within { HEAD ~ the combustion chamber } through the above mentioned process is then rapidly removed from { TAIL ~ the combustion chamber }
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL