Friedrichshafen FF 33
The Friedrichshafen FF 33 was a German military plane, built from 1914 in different versions. There were tense dreistielige biplane, which were used as maritime surveillance. In the first versions of the observer sat in front of the pilot, which was changed from the variant FF 33b, so that the pilot sat in the front and the observer could serve a movable MG rear. The variant FF 33e was unarmed, but received radio equipment. In some cases a double tax was installed and the FF 33 is used as training aircraft.
Later versions from the FF 33f were reduced in size and came with zweistieligen wings. To this was later a forward -firing MG rigid, which was operated by the pilot. In September 1916 came as the last variant, the FF 33L for delivery, which served as the basis for Friedrichshafen FF 49. There about 470 FF 33 were built.
The four FF FF 33L 33e and four who were stationed since 1916 in the German Seeflugstation Pejnerdjik at Varna on the Black Sea, were handed over in June 1918, the Bulgarian Navy. They were destroyed in 1920 by order of the Allied Control Commission in accordance with the terms of the peace treaty.
Since mid-2009, employs a group of enthusiasts around the aircraft Friedrichshafen, including some descendants Theodor Kober to 33e an airworthy full-scale replica of the FF.