Today we're taking a look at the record-setting Tupolev ANT-25. IRS Tax Mistake Bill Passes ... for at least 3 years All but one of the 20 Concordes are accounted for. Here’s what happened ...

B. Blaiszik, University of Illinois When Soviet designer Andrei Tupolev completed the ANT-20, or Maxim Gorky, in 1934, it was not only the world’s largest airplane, it was among the most innovative.

It was larger and more powerful than Concorde, but it needed to be as it was over 20 tonnes heavier ... it was the turn of the Tupolev Tu-144. A look at the record-breaking ANT-25.