1. Largest aircraft ever built is not the Spruce Goose unless you only mean by wingspan.
2. I assume you mean GE9X here?
3. Heathrow is at about 80 million yearly passengers the seventh largest airport in the world based on passengers which i'll assume is what you meant. The largest is Atlanta Hartsfield-Jackson at 110 million passengers.
4 ."The best airline in the world"? Isn't that a matter of preference as you do not state according to whom it is the best.
5. Lufthansa is not the only airline to operate the Boeing 747-8I as a passenger aircraft. Air China and Korean Air also have them.
2. I assume you mean GE9X here?
3. Heathrow is at about 80 million yearly passengers the seventh largest airport in the world based on passengers which i'll assume is what you meant. The largest is Atlanta Hartsfield-Jackson at 110 million passengers.
4 ."The best airline in the world"? Isn't that a matter of preference as you do not state according to whom it is the best.
5. Lufthansa is not the only airline to operate the Boeing 747-8I as a passenger aircraft. Air China and Korean Air also have them.