This includes takeoff or landing emergency conditions wherein {HEAD ~ the propellers} are retracted to {TAIL ~ the maximum performance position} 
are retracted to
This includes takeoff or landing emergency conditions wherein { HEAD ~ the propellers } are retracted to { TAIL ~ the maximum performance position }
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL