 Design work on the Su @-@ 35 had been completed by 2007 , paving the way for KnAAPO to construct the first prototype in the summer of 2007 . Upon completion , Su @-@ 35 @-@ 1 was ferried to the Gromov Flight Research Institute in Zhukovsky Airfield before being placed on static display at that year 's MAKS air show . At the time , Sukhoi General Designer Mikhail Pogosyan commented that the aircraft was in great demand abroad , saying Russia was negotiating with several prospective customers and that there were plans to export the aircraft starting in 2010 . 
