Zeppelin-Staaken R.XV
The Zeppelin-Staaken R.XV was an Imperial German bomber of World War I. An incremental improvement to the Zeppelin-Staaken R.VI, this was one of a series of large strategic bombers called Riesenflugzeuge, intended to be less vulnerable than dirigibles in use at the time.
Development
Almost identical to the R.XIV, the R.XV had a lighter airframe and more refined aerodynamics, in an effort to improve performance. Three aircraft were ordered,, all three being completed by 1 September 1918.As with most Zeppelin Riesenflugzeuge, the R.XV had two engine pods with four engines in a push-pull configuration, large enough for some inflight maintenance. Additional power was provided by a fifth engine mounted in the nose of the aircraft.