Originally Posted by
DaveReidUK
I don't think that rounding up 1.875 x to 2 x invalidates the OP's point.
Where does 1.875 come from? I never quoted it if you please!
Stratolaunch MTOW 540T
An225 MTOW 640T.
ie Antonov is 100 tons
heavier which by my maths makes the Stratothingy considerably lighter rather than twice as heavy...