#air_unit__airunit  a military unit that is part of the airforce
  supertype:  military_unit__military_force__force  a unit that is part of some military service; "he sent Caesar a force of six thousand men"
  subtype:  division.air_unit  wing.air_unit  air_group  squadron  flight.air_unit
  member of:  air_force__airforce  an organization of military air forces

No statement uses or specializes air_unit; click here to add one.