Quadjets - From Transatlantic Enabler To Uneconomic Giant

#Boeing #Airbus #Douglas DC-4 #Boeing 707 #DC-8 #Boeing 727 #DC-9 #DC-10 #Boeing 747 #Boeing 747-8 #Concorde #British Airways #Tupolev Tu-144 #BAe 146 #Boeing 737 #Airbus A300 #Boeing 767 #Boeing 777 #ETOPS #Airbus A340 #Boeing 747-8 #Airbus A380 #Airbus A350-1000 #Boeing 777X