Some aditional pics of the High altitude fighter Fw-190A-3/U7. This variant was an atemp to increase the Fw-190A performance well over the 7000 meters . (when the supercharger became a litle clumsy)
This aircraft had his outer wings MG-FF cannons deleted to save weight. The nose Mg-17s were deleted also and faired over.
The most obvious characteristic was the double venturi tipe air intakes, wich used the ram effect form the airscrew to improve the breathing of the BMW 801 engine.
About 3 or 4 of this variant were manufactured and used by the JG-26 in ealy 1943. It seems that there was also some A-4/u7 and A-5 /U7 but I am not have info about it.
All pictures extracted from: “Höhere jäger und Kampfflugzeuge” waffen arsenal.