Another point related to its size: the 747 has thrust reversers on all four engines. The A380 only has them on the two innermost engines, because the wingspan i

Another point related to its size: the 747 has thrust reversers on all four engines. The A380 only has them on the two innermost engines, because the wingspan is so wide those engines aren't always over the runway and have a higher chance of kicking up debris with reverse thrust.