{HEAD ~ Position dependent system}, apparatus, and method for generating {TAIL ~ runway visual aids} presented on an aircraft display unit 
for generating
{ HEAD ~ Position dependent system } , apparatus , and method for generating { TAIL ~ runway visual aids } presented on an aircraft display unit
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH