High Quality Content by WIKIPEDIA articles! The Siemens-Schuckert Forssman was a prototype bomber aircraft designed and built in Germany in 1914 and 1915. When its performance proved inadequate for its intended role, even after numerous modifications, the German Inspectorate of Flying Troops (the Idflieg) eventually accepted it into service as a trainer. Shortly after its acceptance into military service, the aircraft`s fuselage fractured while on the ground, ending its career. The aircraft is sometimes known as the Siemens-Schuckert Forssman R, the "R" alluding to the designation that the Idflieg assigned to multi-engine aircraft in late 1915.. However, the Forssman did not meet all the criteria of the "R" designation — for example, its engines were not serviceable in flight — and the "R" designation only came into use after the Forssman was built. If the Forssman received any military designation at all, that designation is not now known.