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Friedrichshafen FF29

Страна: Германия

Год: 1914

Two-seat reconnaissance patrol twin float seaplane

Friedrichshafen - FF27 - 1914 - Германия<– –>Friedrichshafen - FF31 - 1914 - Германия


O.Thetford, P.Gray German Aircraft of the First World War (Putnam)


Friedrichshafen FF 29
  Built in small quantity from November 1914, the FF 29 and FF 29a (powered with 120 h.p. Mercedes D II engine) were used for coastal patrol and sometimes carried a small bomb load. No other armament was carried. The FF 29a had modified tail surfaces and floats.


J.Herris Friedrichshafen Aircraft of WWI (A Centennial Perspective on Great War Airplanes 21)


Friedrichshafen FF29 & FF29A

  Friedrichshafen's first wartime design was the FF29, which was basically an enlarged FF19, the first Friedrichshafen aircraft that had been successful enough to be built in any quantity. The FF29 and FF29A were built as unarmed, two-seat reconnaissance floatplanes.
  Production orders for the 44 aircraft actually built are somewhat complex and are summarized in the adjacent table. The first batch of 20 FF29 aircraft were ordered at the start of the war in August 1914. All subsequent batches were ordered in November 1914 and the final aircraft from this orders was delivered in September 1915. One batch of FF29 aircraft, Marine Numbers 290-296, were ordered with the 120 hp Argus.
  The FF29A was the designation for aircraft built under license by the Kaiserliche Werft Wilhelmshaven. These were powered by the 100 hp Mercedes D.I and had slightly modified floats and tail.

Friedrichshafen FF29 Specifications
Engine: 120 hp Mercedes D.II
Wing: Span Upper 16.30 m
Area 57.5 m2
General: Length 10.40 m
Empty Weight 928 kg
Loaded Weight 1,400 kg

Friedrichshafen FF29 & FF29A Production
Type Marine Numbers Quantity Date Ordered Naval Class & Notes
FF29A 91-100 10 November 1914 B, 100 hp Mercedes D.I
FF29 201-220 20 August 1914 B, 120 hp Mercedes D.II
FF29 290-296 7 November 1914 B, 120 hp Argus
FF29 406-410 5 November 1914 B, 120 hp Mercedes D.II
FF29A 411-415 5 November 1914 B, 100 hp Mercedes, 3 aircraft not delivered


Журнал Flight


Flight, October 16, 1919.


SOME FRIEDRICHSHAFEN "MILESTONES"

  PROBABLY no other German aircraft firm can show such a series of seaplanes as that produced by the Friedrichshafen Aircraft Works (Flugzeugbau Friedrichshafen) during the War, and for this reason a brief reference to the various types, illustrated by photographs, may not be without interest to readers of FLIGHT. The illustrations have been published in Flugsport, and the following is a translation of the descriptive matter accompanying the photographs :-
  "The Friedrichshafen Aircraft Works is the oldest German firm which has devoted its energies almost exclusively to the production of seaplanes. The firm was founded in 1912 and has produced a great number of seaplane types, under the efficient leadership of its founder and managing director, Dipl. Ing. Theodor Kober, who has been ably supported by his associates, in close co-operation with the Naval authorities and with various scientific institutions. The main sphere of activity of the firm was the construction, testing, and quantity production of seaworthy single-engined seaplanes of the types used by the German Navy for reconnaissance flights over the North Sea and the Baltic. That the firm was successful in this is proved by the fact that they have been able to supply practically all the requirements of the German Navy, and that a number of other firms have built their machines under licence. Among these may be mentioned the Luftfahrzeug Gesellschaft, the Sablatnig Aircraft Works, the Gothaer Waggonfabrik and the Warnemunde Aircraft Works. As the seaworthiness of a machine depends not only on the right shape of float, but also upon the strength of the floats and undercarriage, on the correct amount of buoyancy and on controllability when alighting, it will be seen what an abundance of experience has to be collected in order to fulfil the specifications for a seaworthy seaplane. A large proportion of the experiments was formed by tests on floats, of which over 100 types were produced. The F.F. machines, which have been well proved during the War, are all of the twin-float type, although before the War single-float machines and flying boats were also tried.
  "One object of the experiments was, among other things, to determine the number and placing of steps which best suited the different types of machines for starting and landing, and what float shape gave the best results for taxying. At the same time the floats should combine small air resistance and great rigidity with small weight, while the most suitable, strongest, and lightest construction of float details also required much work and very many experiments. The following are the most important types of seaplanes produced by the Friedrichshafen Aircraft Works :-

"The F.F. 29
  is a bomber with a 120 h.p. Mercedes engine (Fig. 1). The main floats are comparatively short, and a tail float is therefore fitted under the stern of the fuselage. The radiator is placed above the engine, and the exhaust pipes are passed under the lower plane. The pilot occupies the rear seat, while the observer sits in front, where are also the bomb releases. The petrol gravity tank is hung on the cabane struts.
<...>

J.Herris - Friedrichshafen Aircraft of WWI /Centennial Perspective/
Friedrichshafen FF29 Marine Number 211 was an FF29 powered by a 120 hp Mercedes D.II.
Журнал - Flight за 1919 г.
F.F. 29
J.Herris - Friedrichshafen Aircraft of WWI /Centennial Perspective/
Friedrichshafen FF29 Marine Number 2?3 JUNGDEUTSCHLAND displays a different tail design than the other FF29 aircraft shown here.
K.Delve - World War One in the Air /Crowood/
Friedrichshafen developed a superb series of seaplanes during the war. The FF29, as here, was produced from late 1914 for coastal patrol duties.
J.Herris - Friedrichshafen Aircraft of WWI /Centennial Perspective/
Marine Number 419 was a Friedrichshafen FF33A, while Marine Number 294 was an FF29. The early FF33 and FF33A were virtually FF29 aircraft; later FF33 variants used more powerful engines, mostly the 150 hp Benz Bz.III.
A.Imrie - German Naval Air Service /Arms & Armour/
When HMS Maori, engaged in sketching salient features on the Belgian coast, hit a mine off Blankenberghe and sunk on 7 May 1915, her yard-arm and this flag remained above the water. Despite rough seas, Oberleutnant zur See Drekmann (right) landed his Friedrichshafen FF29 209. Then, with his observer, Fahnrich zur See von Bliicher, hanging on to the starboard front interplane strut with an open clasp knife held in his teeth, pirate fashion, Drekmann managed after several attempts to position von Blucher so that he could cut the flag free. A hazardous take-off followed and the plucky fliers brought their booty back to Zeebrugge. (British destroyers at sea flew either the Red Ensign or the Union Flag from their yard-arms for recognition purposes, but the Germans did not know this and were puzzled as to why a Royal Navy vessel should be flying the 'Red Duster'!)
J.Herris - Friedrichshafen Aircraft of WWI /Centennial Perspective/
FF29s Marine Numbers 208, 204, and 407 are lined up with Oertz F.B.3 MN 46 at Zeebrugge in early 1915.
A.Imrie - German Naval Air Service /Arms & Armour/
Following the occupation of the Belgian coast, a seaplane base was established at Zeebrugge in December 1914. Aircraft were kept in the railway station hall at the end of the Mole, fully assembled on specially constructed flat railway cars which carried tools, fabric, dope, etc for minor repairs, as well as supplies of water, fuel and oil. Locomotives were kept with steam up and were always available to pull the trains out on to the Mole and up to the cranes used to lift and lower the seaplanes to the water. In this early 1915 scene no national insignia are displayed on the upper wing surfaces of these Friedrichshafen FF29 seaplanes or the Oertz flying-boat numbered 46, but wing undersurfaces were marked spanwise with the straight-sided cross, as seen on the Oertz's rudder.
J.Herris - Rumpler Aircraft of WWI /Centennial Perspective/
Rumpler 4B12, Marine Number 105, and an FF29 at either Flying Station List or Sylt.
Журнал - Flight за 1916 г.
LAUNCHING A GERMAN SEAPLANE. - Before the war a good many attempts were made by German constructors at producing a combined wheel and float undercarriage so as to enable machines to start from or alight on either land or sea. In the above photograph, however, the wheels and tackle on top of the floats appear to be detachable to be used probably for running the machine short distances over land, and left behind when she takes the water. The floats, it will be observed, are of the two-stepped type, the first two sections being flat-bottomed, while the portion behind tbe rear step has a Vee bottom. The flags on the lower wing tips are in all probability fitted to a cable, and movable for signalling purposes.
Журнал - Flight за 1917 г.
HOISTING HER HOME. - Bringing a German seaplane into its hangar by means of a crane.
J.Herris - Friedrichshafen Aircraft of WWI /Centennial Perspective/
Early on 6 January 1915 an FF29a was lashed to the deck of the U-Boat U-12 as an experiment to see if the submarine could take the aircraft out into the North Sea where it could perform reconnaissance duties for the submarine. The machine had to be lashed with the wings parallel to the submarine's length. Despite a fairly heavy sea the FF29a was launched successfully about 30 miles out from Zeebrugge. Unfortunately, the conditions deteriorated such that the pilot of the seaplane did not try to make the rendezvous with the submarine but flew back to base. While the idea had worked it was apparent that much more work would be required to develop a true integration of the submarine and an aircraft. This photo may have been related to that experiment.
J.Herris - Friedrichshafen Aircraft of WWI /Centennial Perspective/
Friedrichshafen FF29 Marine Number 410 was delivered in March 1915. Powered by a 120 hp Mercedes D.II, it was the last aircraft of the last batch of FF29 aircraft ordered.
J.Herris - Friedrichshafen Aircraft of WWI /Centennial Perspective/
Friedrichshafen FF29A Marine Number 412 was delivered in March 1915.
O.Thetford, P.Gray - German Aircraft of the First World War /Putnam/
Friedrichshafen FF 29a
J.Herris - Friedrichshafen Aircraft of WWI /Centennial Perspective/
Friedrichshafen FF29A Marine Number 413. Powered by a 100 hp Mercedes D.I, it was from the last batch of FF29A aircraft ordered.
J.Herris - Friedrichshafen Aircraft of WWI /Centennial Perspective/
Friedrichshafen FF29A Marine Number 412 at Borkum. In the center is Flugmaat Elsasser, who provided these Borkum photos.
J.Herris - Friedrichshafen Aircraft of WWI /Centennial Perspective/
A Friedrichshafen FF29 being brought ashore.
J.Herris - Friedrichshafen Aircraft of WWI /Centennial Perspective/
Friedrichshafen FF29 #17 in Danish service.