This a MetalStorm: Online plane.
It a su-27 Flanker, a new generation sovietic fighter. Join withh the Mikoyan Guverich mig-29 Fulcrum, they are the rusian answer to the f-15 Eagle and f-16 Fighting Falcon.
It a agility class plane, it cost 65 gold. Tenent Coperhead flight a similar aircraft with golden details named "Iron Fang"
In Metalstorm aces the name of su-27 of the game is "Steel Fang"