Planes:
USSR: all planes
UK:T5(first 3 meteors,vampire,first jet bomber,and venom)
Germany:T5(Me 262,Ho 229,He162,me 163)
USA T4(researching F2F)
Japan:T3
Premium planes:P47D URSS and germany,P39 URSS,Tu2 URSS,P40 URSS,B25 URSS,Lagg 3 and i153M62,Mustang Mk1A British,BTD1USA
Rare...