Insignia
A diamond-shaped symbol identified NSK aircraft - divided into vertical black, red and gold stripes corresponding to the horizontal fesses or bars on the GDR state flag. The centre of the diamond portrayed the GDR coat of arms: a hammer and compass surrounded by a wreath of yellow grain. The symbol differentiated the Luftstreitkräfte from the West German Luftwaffe, which displays a stylised Iron Cross similar to the emblem on German aircraft during World War I.
Read more about this topic: East German Air Force