{HEAD ~ A particle separator} for a tip turbine engine includes {TAIL ~ a generally conical inclined leading surface} leading to a maximum radius and a tapered trailing surface having a radius at all points therealong less than the maximum radius  
{ HEAD ~ A particle separator } for a tip turbine engine includes { TAIL ~ a generally conical inclined leading surface } leading to a maximum radius and a tapered trailing surface having a radius at all points therealong less than the maximum radius
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL TAIL TAIL 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