Jumbo jets do not glide, they have trajectory. Without their engines they essentially fall out of the sky. There are some reports of pilots increasing the glide path somewhat.
There are many factors that must be taken into consideration when computing actual landing distance in an aircraft. Some of the more important include weight, airport elevation, landing...
The Antonov An-225 is the world's heaviest and largest jet for strategic airlift transport built by Antonov Design Bureau. It is larger than the Airbus A380 airliner which is a private ly owned...