Since it was strictly forbidden by the Treaty of Versailles Germany to build any type of aircraft, the sanctions were eased only from 1922, but still wrote before quite strict power limitations, Claudius Dornier had shifted its activities in Switzerland and Italy. The company Aero Metal AG Zurich at the factory retirement home began in 1922 with the development of an experimental fighter aircraft, which built in structure to the cantilever hunting biplane D-1 of 1918. With this machine, it was hoped that export success in Scandinavia, the Balkans, Japan and Turkey, as everywhere replaced the obsolete aircraft from the time of the First World War, or had to be equipped the newly formed Air Force. At the same time did not want to lose the technological connection to European aircraft development. The Do H was designed as a cantilever high-wing aircraft with box-hull, open cockpit, cantilever normal tail and fixed tailwheel landing gear. The wing was only held by four small struts. The machine was an all-metal construction, only the rudder were covered with fabric. When driving a six cylinder engine BMW IVa was provided with 250 hp takeoff power but you finally built a Hispano-Suiza 8 Fb with 340 hp starting power a. A copy acquired the Wright Aeronautical Company and fitted it in the U.S. with a Wright-Hisso-3 engine to. This engine was an American license production of the Hispano-Suiza with an initial output of 320 hp. The machine was called Wright WP-1 and received the official identification A 6748 The Navy led by plane through numerous tests and was surprised by its performance. But as a monoplane fighter aircraft for the U.S. Navy at the time seemed totally inappropriate, there were no follow-up orders. The machine was later sold to Japan where it is used as a fighter. The Japanese company Kawasaki showed interest in a float version, so you upgraded in the Italian Dornier factory SDCMP a normal Th H to float around and designated the new plane as Sea Hawk. It was also here for a copy. Tentatively, one built in another Italian Sea Hawk tentatively the 12-cylinder engine BMW IVa V-12 with 350 hp starting power, but the engine did not prove itself. A total of five Dornier Do H were built, two in Switzerland and three in Italy.

   5 (4) Falke built (2 by Dornier in Switzerland, 3 by S.D.C.M.P. in Italy) 1 converted to Seefalke in Italy.

 

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3 built in Italy
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MM24
MM25
one exported to Chile

2 built in Switzerland
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A6748
One exported to Japan (served as a basis to Kawasaki KDA-3 fighter(3 built)

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The Dornier "Falke" metal single-seater.
This new aircraft, manufactured and flown in Sohweiz, surprised in terms of its climbing ability, speed and maneuverability. The field of vision for the
guide is excellent in this high-wing aircraft: If the leader raises or lowers his head a little, there is now a very small angle that can no longer
be overlooked. The intermediate space between the fuselage and the wing allows it to see freely in the direction of travel and has a good view of its field of fire. Backwards and downwards, the field of vision is not obstructed at all. The air resistance of the four short connecting stalks between the fuselage and the wing is so low in the chosen favorable cross-sectional shape that it has no influence on the
performance of the aircraft.
Aerodynamic studies have shown that the best flight performance is achieved by a monoplane with a cantilevered thick wing. The aircraft is
built entirely of metal. All vital, highly stressed parts are made of high-quality steel, all other parts are made of duralu minium. All parts are connected
by screws or rivets, welded or soldered connections do not occur. The cantilevered wings with short, light stems, which are rigidly attached to it, are connected to
the fuselage with four-bolts. The carrying deck can therefore be easily removed at any time, so that the machine can be packed well
. The wing has two fully continuous spars made of the highest quality steel with faucet filling. At short intervals in the Dornier
metal construction, spars made of sheet metal made by punching and pressing are arranged in duralumin, which, together with the spars, mow the wing into an unusually strong, rigid body for aircraft by riveting it to the metal ceiling, which is fully used for load-bearing.
The hump represents a body approaching the streamlined shape with flattened sides. As a result of the special fjügel connection mentioned above, a very
simple and smooth shape has been achieved, which is extremely easy to pack. The outer skin of the fuselage consists of solid, smooth dural sheets. At appropriate
intervals, frames made of U-double flange profiles are riveted in.
Torsional and biological loads of such hulls showed that the stress on the material when the prescribed load multiple is reached is no more than 7 kg/mm, i.e. not even one fifth of the breaking strength. This is particularly suitable for the transmission of diagonal stresses, local damage and dents occur much less frequently with smooth plates than with corrugated sheets. The hulls built by Dornier can be walked on at all points without further ado. Despite the great structural safety, the weight of the hulls is not greater than that of normal wooden hulls.
Simple guide surfaces with loan-eyed rudders serve as tail for altitude and soit control. The oars are made entirely of metal, but they can also be supplied covered with fabric. All control cables are relocated to the inside of the fuselage or the wing.
The chassis deviates significantly from the previously known designs and achieves a significant simplification and reduction of parts
that cause air resistance. It has proven itself in practice very well. It consists of two strong stems, which are rotatable in the hull with a steel bolzon and carry the wheels at
their outer offset end, while the ends protruding into the interior of the fuselage are cushioned by elastic bands. In this way, in addition to the advantages mentioned, a very perfect cushioning is achieved, which enables a very "soft" landing without the aircraft showing any inclination to jump.
The omission of the continuous axle prevents the risk of the axle getting caught on the ground
between the wheels when landing on uneven terrain and thus causing damage to the chassis or headstand of the aircraft.
The armament consists of two rigid machine guns coupled to the engine. These are installed directly in front of the guide and are also easily
accessible in flight. The fuel system consists of a pressurized gasoline tank housed in the fuselage and a falling gasoline tank located in the wing center section. The oil tank is located directly
next to the engine