On the 15th of January 1915, the German submarine, SM U-12, departed from Zeebrugge, Belgium, with an armed Friedrichshafen FF.29 seaplane strapped to its foredeck. The intended destination was the English coast, but once the submarine, captained by Kapitanleutnant Walther Forstmann, passed the breakwater and entered open waters, Forstmann realized that the swell was too dangerous for the plane. He ordered the submarine to submerge, enabling the plane’s pilot, Friedrich von Arnauld de la Perière, to float the FF.29 off the deck and to take off. Once airborne, the German pilot flew the plane along the English coast, safely returning to Zeebrugge.
The German Imperial Navy utilized the FF.29, produced by Flugzeugbau Friedrichshafen, to conduct coastal patrols and reconnaissance missions. She performed the first bombing raid on British soil (Dover), taking place on the 24th of December 1914, a month after the FF.29 entered service. A Mercedes D.II, 90 kW (120 hp) inline piston engine powered the 1,400 kg (3,086 lb – gross weight) two-seater. She had a wingspan of 16.30 m (53ft 6in), and length of 10.40 m (34ft 1in).
References
http://en.wikipedia.org/wiki/SM_U-12_(Germany)
http://en.wikipedia.org/wiki/Friedrichshafen_FF.29
http://www.navalofficer.com.au/carriersub/
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