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