{HEAD ~ Small DC electric motor} 16 is mounted upon {TAIL ~ the framework} and carries fan blade 18 on its output shaft 
is mounted upon
{ HEAD ~ Small DC electric motor } 16 is mounted upon { TAIL ~ the framework } and carries fan blade 18 on its output shaft
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH