Rumpler 4B12

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Rumpler 4B12
Role Seaplane
Manufacturer Rumpler
Introduction 1915 [1]
Primary user Cross-Pattee-alternate3.svg Germany
Number built ~18[1]-31[2]
Developed from Rumpler 4B11
Engine 150hp Benz Bz.III inline
Armament small bombs only

About 20 or 30 Rumpler 4B12 seaplanes were built and used for patrol during 1915. They were based on the earlier Rumpler 4B11, but they mounted the more powerful 150hp Benz Bz.III engine. [1]

Orders and deliveries arrived in small batches from April 1915 through March 1916. The 4B12 was used in the North Sea and the Baltic. It served until the summer of 1916, at which time it moved to training duties.

For more information, see Wikipedia:Rumpler B.I.



  1. 1.0 1.1 1.2 Gray, p.514.
  2. Nowarra, p.58.
  • Peter Gray and Owen Thetford. German Aircraft of the First World War. Great Britain, Putnam, 1962, 1987. ISBN 0-85177-809-7.
  • Heinz J. Nowarra, Bruce Robertson, and Peter G. Cooksley. Marine Aircraft of the 1914-1918 War. Letchworth, Herts, England: Harleyford Publications Limited, 1966. ISBN 0900435070