Crazy aircraft #41 - SU-47

The SU-47 is Russia’s fighter that uses forward swept wings. The idea with forward swept wings is to create a plane that is unstable by design, and then let computers deal with the instability. The advantage of the instability is that it makes the plane quick-maneuvering.

This article has some details:

Su-47 (S-37) Berkut Experimental Fighter Aircraft, Russia

From the article:

The swept-forward wing, compared to a swept-back wing of the same area, provides a number of advantages: higher lift to drag ratio; higher capacity in dogfight manoeuvres; higher range at subsonic speed; improved stall resistance and anti-spin characteristics; improved stability at high angles of attack; a lower minimum flight speed; and a shorter take-off and landing distance.

[See #40]