Su-47
The [b]Sukhoi Su-47 Berkut[/b] (Russian: Су-47 Беркут - [i]Golden Eagle[/i]; NATO reporting name [i]Firkin[/i]), also designated S-32 and S-37 (not to be confused with the twin-engined delta canard design offered by Sukhoi in the early 1990s under the designation [[Su-37]]) during initial development, was an experimental supersonic [[jet]] fighter developed by Sukhoi Aviation Corporation. 

A distinguishing feature of the aircraft was its combination of forward-swept wings and [[canards]] that gave the aircraft excellent agility and maneuverability. While serial production of the type never materialized, the sole aircraft produced served as a technology demonstrator prototype for a number of advanced technologies later used in the 4.5 generation fighter [[Su-35]] BM and current fifth-generation jet fighter prototype Sukhoi [[su-57|PAK FA]].
su-47 berkut