Boeing 747-400's Exceptional Altitude Capabilities

The Boeing 747-400 is known for being one of the 'heaviest' aircraft in its class, with a maximum takeoff weight of up to 875,000 pounds.

This heavy weight offers parameters for air traffic controllers and pilots to determine wake levels and space needed between aircraft at arrival or departure points.

The aircraft's high altitude capabilities are also noteworthy, as it can reach heights of up to 45,100 feet and is certified for that altitude.

Despite its massive size, the -400 outperforms most modern commercial jets in terms of service ceiling, with rival heavy widebodies typically topping out at 43,100 feet.