Largest aircraft by weight (ever)
Who
Antonov An-225 'Mriya'
What
640 tonne(s) (metric ton)
Where
Not Applicable
When
The aircraft with the highest standard maximum take-off weight is the Antonov An-225 "Mriya" (Dream) originally built at 600 tonnes (1.32 million lb). In 2000-2001 its floor was strengthened resulting in an increased maximum take-off weight of 640 tonnes (1.41 million lb). A heavy-lift version of the standard Antonov An-124 "Ruslan" cargo plane, only two of these behemoths were ever built.