Polikarpov U-2/Po-2 - summary version
U-2 - basic two-seat training variant, the engine Švecov M-11; approx 20000 pcs
UT / U-2UT - a designation used for training U-2 with partially kapotovaným engine M-11D and equipment for practicing flying by reference to instruments
AP / AO / U-2AP - agricultural single-seat variant with the cockpit moved forward, a second fuel tank in the canopy of the wings and tanks on the powdered chemicals place of rear cockpit; the ability to jump seat behind the pilot; 1255 pcs
SP / U-2SP - three-seat light transport variant derived from the AP, with two separate cockpits place the tank on chemicals; 831 pcs
SS / U-2S-1 - ambulance variant with space for a stretcher and one sitting in the zoomed back; 99 pcs
S-2 / U-2S-2 - ambulance version from 1940 with the engine M-11D and a much larger ridge; approximately 670 pcs
S-2 / SKF / U-2S-3 - conversion with space for two stretchers next to each other
U-2M / MU-2 - float prototype of 1931 with a wooden central float
U-2M / U-2P - armed float prototype from 1944 with duralovým central float
U-2MB- a prototype with a 147kW engine M-12, armor the cockpit and a machine gun UBT
U-2VVS / U-2 model 1933 - armed reconnaissance connecting plane, 1 fixed and 1 movable machine gun, light bombs; 473 pcs + conversion
U-2 model 1942 / U-2LNB - light night bomber variant, 1 movable machine gun, 300 kg of bombs; about 14000 pcs
U-2 model 1944 - adjustment to the standardized for belt production, better equipment
VOM-1 - conversion from the year 1941, the "fire bags" or light bombs odhazovanými of the cluster carriers in the fuselage, a fixed machine gun on the left half of the lower wings; five series
U-2LŠ - sometimes the designation used for a machine carrying unguided rockets RS-82 or RS 132
U-2 Nig - conversion to a VHF system Nig-1 allowing it to guide to the airport using radiomajáku
U-2NAK - conversion of the U-2LNB with radio RSI-4 intended for night observation and guidance of artillery fire
U-2GN (Golos něba) - 2 conversion for the psychological warfare with the speakers located in the trunk, perhaps followed by another field conversion
U-2L - "the limo", a parlor traffic conversion:
- Limuzin Rafaeljanca - extended machine with the covered cockpit filler the entire gap between the wings
- Limuzin 3. air army - training U-2 cockpits covered vícedílnou the cockpit made of organic glass
- U-2L Zusmana - different training U-2 cockpits covered vícedílnou the cockpit made of organic glass
- U-2L / U-2 maršalskij - conversion of S-2 with a luxurious interior
- After-2LC - conversion is shortened below the center of the wings equipped with fixed slots on the leading edge
U-2ŠS - staff light transport and ambulance aircraft with a wider fuselage, covered the cab and partially kapotovaným engine M-11F; several pieces of
RV-23 - conversion with two floats and an engine Wright Cyclone designed for a record flight
E-23 - another record conversion, designed for years of head down
-2 - a designation established for the U-2 after the death of polikarpov-type construction in 1944
-2S - ambulance variant derived from the S-2 engine M-11D or M11F, the articulation of a balanced ailerons, modified glazing; an unknown number of
-2A - post-war agricultural and light transport option - the cockpit wasn't posuntý, instead he adjusted the position of the upper wing; an unknown number of
-2L - parlor variant derived from the Po-2S; an unknown number of
CSS-13 - Polish multi-purpose license variant; 491 pcs
CSS S-13 - the Polish ambulance variant with a covered cab; 53 pcs + conversion