The Rohrbach Ro II was an all-metal, 4-seat reconnaissance and bomber

flying boat A flying boat is a type of fixed-winged seaplane with a hull, allowing it to land on water. It differs from a floatplane in that a flying boat's fuselage is purpose-designed for floatation and contains a hull, while floatplanes rely on fusela ...

, designed and produced in Germany in 1923.

Development

Founded in 1923 by Dr.-Ing. Adolf Rohrbach, the Rohrbach Metall-Flugzeugbau GmbH designed and built many aircraft using light-alloy stressed skin construction methods that were at the cutting edge of aircraft design in the 1920s. His previous experience with light-alloys at the Zeppelin-Staaken factory served Rohrbach well when designing the Rohrbach stressed-skin aircraft. After designing the un-built Ro I twin-engined flying boat, Rohrbach developed the Rohrbach Ro II flying boat as an all-metal shoulder winged monoplane flying boat with two tractor engines mounted in nacelles, above the wings, on struts. Planforms and profiles were kept as simple as possible with rectangular section fuselage frames (with vee planing bottoms), constant chord wings, tailplane and fin with square cut tips and distinctive protruding servo/trim/balance tabs at wing and fin tips. The two-seat open cockpit sat between the engines at the wing leading edge, with an open gunner/bosun's position at the extreme nose. A very unusual feature of several of Rohrbach's flying-boats was the provision of a pair of masts and sails to be rigged in the event of engine failure, allowing the aircraft to be sailed back to a safe

harbour A harbor (American English), harbour (British English; see spelling differences), or haven is a sheltered body of water where ships, boats, and barges can be docked. The term ''harbor'' is often used interchangeably with ''port'', which is a ...

. At the time of the Ro II's production the Versailles Treaty forbade the construction of large aircraft in Germany so Rohrbach set up a

Danish Danish may refer to: * Something of, from, or related to the country of Denmark People * A national or citizen of Denmark, also called a "Dane," see Demographics of Denmark * Culture of Denmark * Danish people or Danes, people with a Danish ance ...

company, the 'Rohrbach-Metall-Aeroplan Co. A/S', to build the early Rohrbach aircraft. The strict regulation of the aircraft industry was relaxed in 1926, allowing the Rohrbach series to be built at the Rohrbach Metall-Flugzeugbau GmbH factory in Berlin.

Operational history

The first flight of the Ro II took place on 11 November 1923, pilotted by Werner Landmann and the aircraft was used in FAI record attempts for speed/load on 24 October 1924. After trials and record attempts were completed the aircraft was sold to

Mitsubishi The is a group of autonomous Japanese multinational companies in a variety of industries. Founded by Yatarō Iwasaki in 1870, the Mitsubishi Group historically descended from the Mitsubishi zaibatsu, a unified company which existed from 1870 ...

Shoji Kaisha Ltd., re-designated Yokosho Experimental Type R 1 and used for trials by the Imperial Japanese Navy.

Operators

* Imperial Japanese Navy

Specifications

References

*http://www.histaviation.com/Rohrbach_Ro_II.html *http://www.letletlet-warplanes.com/2008/06/04/german-flying-boats-part-1-1914-1935/4/ {{Rohrbach aircraft 1920s German military aircraft 1920s German military reconnaissance aircraft Flying boats Rohrbach aircraft Shoulder-wing aircraft Aircraft first flown in 1923 Twin piston-engined tractor aircraft