The first aircraft is the Bisnovat SK. It was a fighter prototype designed by Matus Bisnovat during 1939-1940.
Ref. 'Soviet Combat Aircraft of the Second World War' Volume 1, pg. 17
by Yefim Gordon and Dmitri Khazanov
ISBN #1-85780-083-4
The second aircraft is an early model MiG-21 Fishbed as already noted in the previous posts.
The third aircraft is the Blohm Und Voss BV-142 V2/U1.
Ref. 'Warplanes of the Third Reich' pg. 87
by William Green
ISBN #0-671-08160-8
SD
[This message has been edited by Sundog (edited 11-08-2000).]