WThe Gotha WD.27 was a patrol seaplane developed in Germany during World War I. It was a large, four-engine aircraft with the same general layout as the WD.22; a conventional seaplane with engines grouped in tractor-pusher pairs on the lower wings. Contemporary records show three German Navy serial numbers allocated to the type, but only one of these may have been flown.
WPL25 was a non-rigid military airship made in 1914/15 by the Luft-Fahrzeug-Gesellschaft in Bitterfeld and was the last single-gondola Parseval. At the same time it was one of the largest non-rigid airships before the second world war. Its maiden flight was on 25 February 1915. It had a slim teardrop-shaped hull.
WThe Zeppelin P Class was the first Zeppelin airship type to be produced in quantity after the outbreak of the First World War. 22 of the type were built as well as 12 of a lengthened version, the Q Class . They were used for many of the airship bombing raids on the United Kingdom in 1915-16, for naval patrol work over the North Sea and Baltic and were also deployed on the eastern and south-eastern fronts.
WThe Zeppelin R Class was a type of rigid airship developed by Zeppelin Luftschiffbau in 1916 for use by the Imperial German Navy and the German Army for bombing and naval patrol work. Introduced in July 1916 at a time when British air defences were becoming increasingly capable, several were lost in the first months of operation, leading the Germans to reconsider their technical requirements and eventually to develop airships capable of bombing from a greater height. Most surviving examples were modified to meet these requirements, by reducing weight at the expense of performance. A total of 17 were built.
WThe Zeppelin-Lindau Rs.I was a large three-engined biplane flying boat designed by Claudius Dornier and built during 1914–15 on the German side of Lake Constance. It never progressed beyond taxiing trials as it was destroyed in a storm.
WThe Zeppelin-Lindau Rs.II was a biplane flying boat, designed by Claudius Dornier and built during 1914–1915 on the German side of Lake Constance. Initially this aircraft was powered by three engines mounted inside the hull driving three pusher propellers via gearboxes and shafts. The later version was powered by four engines in two push-pull nacelles mounted between the wings.
WThe Zeppelin-Lindau Rs.III was a large four-engined monoplane flying boat designed by Claudius Dornier and built during 1917 on the German side of Lake Constance at the Zeppelin-Lindau works.
WThe Zeppelin-Lindau Rs.IV was a Riesenflugzeug monoplane all metal flying boat with a stressed skin hull an fuselage developed for the Imperial German Navy to perform long range patrols over the North Sea. It had been developed by Claudius Dornier while working for Zeppelin in the town of Lindau.