Seen here, the Me 262 from this German manufacturer was the world's first operational fighter jet
[DOC] [TLE] The World's first Jet Fighter, the German Messerschmitt Me 262 ... [PAR] The Me 262 was not operational until 1944, and its effectiveness was crippled by 
.... United States fitted with FuG 218 radar (2216 x 1725) Click here for Highest 
Resolution: ... Messerschmitt Me 262 ,first jet fighter built by Germany in ww2 ......