A soviet design of a world speed record setting aircraft from 1955. E-152/1 aircraft, designated officially E-166, set three world records: - test pilot A.V.Fedotov set the world closed-circuit speed record in flight along 100 km route on October 7, 1961. Speed of 2401 km/hour was attained. - test pilot G.K.Mosolov set the world speed record on July 7, 1962. Average speed of 2681.7 km was attained in flight along 15-25 km speed base in two directions. The speed above 3000 km/hour was attained during one passage. - on September 11,1962 test pilot P.M.Ostapenko set the world altitude record 22670 m in flight along 15-25 km speed base at the speed of 2500 km/hour. It is a nice looking model which however doesn't fly that good. Its flight characteristics have been sacrificed to its wonderful appearance, which does not mean that it can't be modified for better flight experience. Have fun and feel free to add some extra inlets for more power:)