Beautiful Viper emadd!
@ Mona A, Block 50/52 where the last blocks that the USAF bought. So it cannot be really called an export version as other countries bought the same block with minor differences. Lockheed Martin continued the development of the Viper to the Block 52+/52 Advanced standard which can be considered as export versions only in the sense that the USAF didn't buy them. The 52+ (Greek Airforce) and 52 Advanced (Polish Airforce and Greek Airforce) where better equiped aircraft with greater capabilities than the USAF Vipers (better radar, conformal fuel tanks for extended range, dorsal spine for more electronics). The Block 60 were tailor built for the UAE Airforce (the first Viper to use an AESA radar) and up until the Block 70/72 version (current and future users are Taiwan, Greece, Bahrain, Bulgaria, possibly Morocco) were the most capable Vipers for a long time. Not to mention the F-16I, another export version for Israel, with a lot of israeli goodies which are kind of classified and thus their capabilities are a bit of an unknown.
21. June, 20:10