A question from FunAdvice:

can some one tell me which is the longest aircraft in the world? is it airbus 340-600 (OR) is it boeing 777ER? or is there any other aircraft longer than these two?

Depends on how you define aircraft…

If you’re only interested in heavier-than-air, the longest aircraft is Airbus A340-600; it is 247 ft (75.3 m) long:

Boeing 777-300 and Boeing 777-300ER are slightly shorter, 242 ft 4 in (73.9 m):

But zeppelins used to be much longer than that. The Hindenburg, for example, was 804 ft (245 m) long: