Air flowing toward the core airflow inlet is first diverted radially outwardly by {HEAD ~ the inclined leading surface} of {TAIL ~ the particle separator} to the maximum radius of the particle separator  
of
Air flowing toward the core airflow inlet is first diverted radially outwardly by { HEAD ~ the inclined leading surface } of { TAIL ~ the particle separator } to the maximum radius of the particle separator
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH