Rumpler aircraft and ideas from 1908-1940

[hesham]

Hi,


from Luftfahrt International 12/1981,here is some ideas and aircraft designed
by Rumpler,but I suspect in drawing 4,may be an American design based on
Rumpler works,I can' translate well.

 

[Jemiba]

Description of drawing 4: "The idea of the unloaded wing was published around the same time
by the American (designer) Norton, but he used a very long lever arm for the atil plane"
So, according to this source, no direct relation to Rumpler, just a similar idea during the same
time.

 

[hesham]

Thank you my dear Jemiba,


and I didn't find it in Aerofiles site.

 

[Wurger]

Dear Hesham,

does the magazine include more late Rumpler`s activities? The thread goes up to 1940, right? Full aircraft designs?

 

[hesham]

Dear Hesham,

does the magazine include more late Rumpler`s activities? The thread goes up to 1940, right? Full aircraft designs?

May be it had more designs my dear Wurger,


and I don't know Germany language well,so I display the whole article here.

 

[Wurger]

Thanks, Esham!

 

[Wurger]

Another interesting Rumpler project, a radial aircraft engine, dated 1920, intended to develop 1000Hp.

 

[Tuizentfloot]

List of Rumpler aircraft 1908 - 1918 - Part 1

Aircraft built on demand before the Taube era.

Source: J.A. Kranzhoff Edmund Rumpler - Wegbereiter der industriellen Flugzeugfertigung by (2004), pp. 406-419

Rumpler-Fritsche: Triplane. 1 x Aeolus, 50 hp, later modifed as Etrich-Rumpler Taube wit 1 x Austro-Daimler, 65 hp. 1 built (1908). To German Navy as E 1.

Rumpler-Lippe: Helicopter. 1 x Antoinette, 50 hp. 1 built (1908), but not tested.

Rumpler-Focke-Alberti: Canard monoplane. 1 x ENV, 40 hp. 2 built (1909).

Rumpler-Brunsmann: Ornitopter. 1 built (1909), but not tested.

Rumpler-Pegelow: Monoplane. 1 x Anzani, 12 hp. 1 built (1910). Unable to fly.

Rumpler-Stein: Monoplane. 1 x Aeolus, 50 hp. 1 built (1910).

Rumpler-Haefelin: Monoplane. 1 x Aeolus, 50 hp. 1 built (1910).

Rumpler-Plage: Biplane. 1 x Aeolus, 50 hp. 1 built (1910).

Rumpler-Schudeisky: Biplane. 1 x Aeolus, 50 hp. 1 built (1910), but not tested.

Rumpler-Eggers: Monoplane. 1 x Aeolus, 50 hp. 1 built (1910), but not tested.

to be continued…

 

[hesham]

Excellent work my dear Tuizentfloot,many thanks.

 

[Tuizentfloot]

List of Rumpler aircraft 1908 - 1918 - Part 2

The Taube era.

Etrich-Rumpler-Taube: 1 x Aeolus, 50 hp. 2 built (1910).

Etrich-Rumpler-Taube: 1 x Antoinette, 50 hp. 1 built (1911).

Etrich-Rumpler-Taube: 1 x Hiero, 80 hp. 1 built (1911).

Etrich-Rumpler-Taube: 1 x Austro-Daimler, 65 hp. 4 built (1911). Two were military aircraft (A1/11 and A2/11).

Etrich-Rumpler-Taube: 1 x Gnome, 70 hp. 1 built (1911).

Etrich-Rumpler-Taube: 1 x Dixi, 70 hp. 1 built (1911).

Etrich-Rumpler-Taube: 1 x Daimler, 70 hp. 5 built (1911). Four were military aircraft (A3 - A6/11).

Rumpler-Taube: 1 x Aeolus, 65 hp. 1 built (1911). Military A7/11.

Rumpler-Taube: 1 x NAG, 95 hp. 1 built (1911).

Rumpler-Taube: 1 x Austro-Daimler, 120 hp. 1 built (1911). Military A11/11.

Rumpler-Taube: 1 x Argus, 100 hp. 1 built (1911). Military A10/12.

Rumpler-Taube Einheitstyp: 1 x Argus, 100 hp. 55 built (1911). Military A8 - A9/11,.A1 - A15/12, A28 - A29/12, A58 - A60/12, A11 - A23/13.

Rumpler-Taube Einheitstyp: 1 x Daimler D I, 105 hp. Ca. 50 built (1913). Military A1 - A10/13, A24 - A25/13.

Rumpler-Taube Einheitstyp: 1 x NAG, 85 hp. 9 built (1912). Military A33/12, A50 - A57/12.

Rumpler-Taube Einheitstyp: 1 x Gnome, 70/100 hp. 3 built (1912). Military A12 - A14/12.

Rumpler-Taube: 1 x Daimler, 70 hp. 1 built (1912). Tubular propeller shaft.

Rumpler-Taube: 1 x Daimler-Stahlzylinder, 85 hp. 1 built (1913).

Rumpler-Taube: 1 x Argus, 100 hp. 1 built (1913). Modified undercarriage.

Rumpler-Wasser-Taube: 1 x Argus, 100 hp. 1 built (1913). Floatplane. Navy L4.

Rumpler-Wasser-Taube: Floatplane with in line engine. 1 built (1913), but not tested.

Rumpler-Loutzkoy-Taube: 2 x Argus, 100 hp. 1 built (1913). Modified Taube according to the project of the Russian inventor Boris Lutsky (Loutzkoy in German).

Rumpler-Taube Delphin: Taube with cabin. Only model built (1913).

Rumpler-Sohlmann: Canard monoplane ordered by J. Sohlmann. Not a Taube type. 1 x Aeolus, 50 hp. 1 built (1912).

Rumpler-Renn-Taube: 1 x Daimler, 100 hp. 1 built (1912).

Rumpler-Torpedo-Eindecker: 1 x Argus, 100 hp. 1 built (1913). Modified Renn-Taube.

Rumpler Ru 3C Eindecker: 1 x Daimler D I, 105 hp. Ca. 20 built (1913). Military.

Rumpler Ru 3C Wasser-Eindecker: 1 x Argus, 100 hp. Floatplane with single central float. 2 built (1912).

Rumpler Ru 3F: 1 x Daimler D I, 105 hp. 1 built. Ru 3c Wasser-Eindecker with double floats.

Rumpler Ru 4C: 1 x Benz Bz II, 125 hp. 2 built.

Rumpler Ru 4C: 1 x Benz Bz II, 105 hp. Ca. 5 built. With modified undercarriage.

Rumpler Eindecker Schweinchen: 1 x ? (rotary engine). 1 built (first flight 1915). Single seat military monoplane. The last and distant modification of the original Taube.

To be continued…

 

[hesham]

Amazing list my dear Tuizentfloot.

 

[Tuizentfloot]

List of Rumpler aircraft 1908 - 1918 - Part 3

The First World War.

Rumpler Ru 4A: Two-seater biplane. 1 x Daimler D I, 105 hp. 1 built (1914).

Rumpler Ru DDD: Modified Ru 4A with X struts. 1 built (1914).

Rumpler Ru 5 DDD: Variant of Ru DDD. 1 built (1914), but not flown.

Rumpler Ru 4A13: Variant of Ru 4A with bigger span. 1 x Daimler D I, 105 hp. 1 built (1914).

Rumpler Ru 4A14: Variant of Ru 4A with bigger span. 1 x Benz Bz III, 150 hp. 1 built (1914).

Rumpler Ru 4B1: Floatplane. Ru 4A with central float. 1 x Daimler D I, 105 hp. 1 built (1914).

Rumpler Ru 4B2: Floatplane. Ru 4A14 with central float. 1 x Benz Bz III, 150 hp. 1 built (1914).

Rumpler Ru 4E: Two-seater biplane flying boat. 1 x Austro-Daimler, 120 hp. 1 built (1914).

Rumpler B I: Series of Ru 4A with some modifications. 1 x Daimler D I, 105 hp. Ca. 200 built (1914).

Rumpler Ru 4B11: Variant of Ru 4B1 for coastal reconnaissance. 1 x Benz Bz I, 100 hp. 18 built (1914).

Rumpler Ru 4B13: Variant of Ru 4B2 for coastal reconnaissance. 1 x Oberursel U III, 160 hp. 1 built (1914).

Rumpler Ru 4B12: Variant of Ru 4B2 for coastal reconnaissance. 1 x Benz Bz III, 150 hp. 30 built (1915).

Rumpler Ru 4A2: Two seater biplane. 1 x Benz Bz III, 150 hp. 1 built (1915).

Rumpler Ru 4A15: Three-seater biplane with push propeller. 2 x Benz Bz III, 150 hp. 1 built (1915).

Rumpler Ru 5A2: Two-seater reconnaissance biplane. 1 x Daimler D III, 160 hp. 1 prototype built (1915) and series production of 2362 as Rumpler C I (1 x Daimler D III, 160 hp) and Rumpler C Ia (1 x Argus As III, 180 hp).

Rumpler Ru 5A3: Two-seater reconnaissance biplane. 1 x Argus As III, 180 hp. 1 prototype built (1915) as Rumpler C II.

Rumpler Ru 5A15: Three-seater bomber. 2 x Daimler D III, 150 hp. 1 prototype built (1915) and series production of 58 as Rumpler G I.

Rumpler Ru 5A4: Biplane with 1 x Daimler D III, 160 hp. 1 built (1916).

Rumpler Ru 5A16: Modification of Ru 5A15. 2 x Benz Bz IV, 220 hp. 2 prototypes built (1915) as Rumpler G II.

Rumpler Ru 6B12: Single-seater naval fighter. 1 x Daimler D III, 160 hp. 1 prototype (1915) and series producion of 88 as Rumpler 6B I and (with modifications) Rumpler 6B II.

Rumpler Ru 6A2: Two-seater biplane. 1 x Daimler D III, 160 hp. 1 built (1916).

Rumpler Ru 6A5: Two-seater reconnaissance biplane. 1 x Benz Bz IV, 220 hp. 1 prototype built (1916) and series production of 42 as Rumpler C III.

Rumpler Ru 6A6: Modification of Ru 6A5. 1 x Benz Bz IV, 220 hp. 1 built (1916).

Rumpler Ru 6A7: Two-seater biplane. 1 x Daimler D IVa, 260 hp. 1 prototype (1916) and series production of 2200 as reconnaissance planes Rumpler C IV (1 x Daimler D IVa, 260 hp) and Rumpler C VII (1 x Maybach Mb IVa, 260 hp). Ca. 20 were built as battle planes Rumpler C V (1 x Maybach Mb IVa, 260 hp).

Rumpler Ru 6A8: Two-seater trainer. 1 x Argus As III, 180 hp. 1 prototype (1916) and series production of ca. 80 as Rumpler C VIII.

Rumpler Ru 6G2 and Rumpler Ru 6G3: Four-seater bombers. 2 x Daimler D IVa, 260 hp. 1 prototype of each (1916) and series production of ca. 20 as Rumpler G III.

Rumpler Ru 7C1: Experimental two-seater biplane. 1 x Daimler D III, 160 hp. 1 built (1917). A modified prototype Ru 7C1 was built with 1 x Maybach Mb IV, 260 hp. Series production of 20 as Rumpler C IX.

Rumpler Ru 7D1: Single-seater biplane derived from Ru 7C1. 1 x Daimler D III, 160 hp. 1 built (1917).

Rumpler Ru 7D2: Single-seater biplane derived from Ru 7C1. 1 x Daimler D III, 160 hp. 1 built (1917).

Rumpler Ru 7D3: Single-seater biplane. 1 x Daimler D III, 160 hp. 1 built (1917).

Rumpler Ru 7D4: Single-seater biplane. 1 x Daimler D III, 160 hp. 2 built (1917).

Rumpler Ru 7D5: Single-seater biplane derived from Ru 7D4. 1 x Daimler D III, 160 hp. 1 built (1917).

Rumpler Ru 7D6: Single-seater quadruplane with rotary engine. Only project (1917).

Rumpler Ru 7D7: Single-seater biplane derived from Ru 7D4. 1 x Daimler D IIIa, 180 hp. 1 built (1917).

Rumpler Ru 7D8: Single-seater biplane derived from Ru 7D7. 1 x Daimler D IIIa, 180 hp. 1 built (1918).

Rumpler 6G4: Modification of Rumpler G III. 1 built (1918).

Rumpler Ru 8D1: Single-seater biplane fighter derived from Ru 7D7. 1 x Daimler D IIIa, 180 hp. 1 prototype (1918) and series production of 22 as Rumpler D I.

Rumpler Ru 8C12: Two-seater biplane. 1 x Daimler D IVa, 260 hp. 1 built (1918).

Rumpler Ru 8C13: Two-seater biplane. 1 x Daimler D IVa, 260 hp. 1 built (1918).

Rumpler Ru C14: Two-seater reconnaissance biplane. 1 Maybach Mb IVa, 260 hp. 1 prototype (1918) and series production of 3 as Rumpler C X.

Rumpler C XI: Two-seater reconnaissance biplane. 1 Maybach Mb IVa, 260 hp. 1 built (1918).

Rumpler C XII: Two-seater reconnaissance biplane. 1 Maybach Mb IVa, 260 hp. 4 built (1918).

Rumpler C XIII: Two-seater battle biplane. 1 Maybach Mb IVa, 260 hp. 3 built (1918).

To be coninued...

 

[airplane176]

Tuizentfloot,

Thank you for posting this wonderful information. I am a collector of serial numbers - see:

http://aircraft.list-of-domains.org/

I have most of the Taube type serials that you mention, but not with the engine types as you have presented it. One of the lines appears to duplicate several of the serials of another line:

Rumpler-Taube Einheitstyp: 1 x Gnome, 70/100 hp. 3 built (1912). Military A12 - A14/12.

Is the year a typo? Also, not being a speaker of German, what does "Einheitstyp" mean. Google Translate gives "unit-type". Does is mean something like "series type" or "service (military) type"? I also know of the "Klapptaube" With removable wings for transport from Rumpler and Albatros. My information indicate that the Rumpler model would be a sub-type of the 3C. Thank you again.

Roger

 

[Tuizentfloot]

Dear Roger

I already know your databases on German serial numbers. Splendid and very useful stuff! My congratulations!

Concerning the list of Rumpler aircraft types I posted, it is not my own work. A I stated earlier I compiled this list from the overview of Rumpler types on pages 406-419 of J.A. Kranzhoff Edmund Rumpler - Wegbereiter der industriellen Flugzeugfertigung, edited in 2004. Of the 430 pages of this work almost 200 concern the different Taubes… It's a kind of definitive work, written with typical German thoroughness, but… only in German...

As you know, in those early days (1910-1914) aeroplanes had rarely a systematic designation or even a name. Rumpler made just a distinction between Etrich-Rumpler-Taube and simply Rumpler-Taube. Since those days publications give different names to distinguish the different types.

For instance, the name Einheitstyp is the author's choise. It simply means "standardised military type". You can find other names like Militär-Taube and so on.

Concerning the A12-A14/12, the year 1912 is not a typo. I join a scan from page 410 that they were based at Döberitz in 1912. On page 144 I found that these three Taubes were used as trainers at Döberitz. A12/12 and A13/12 had a 70 hp engine, and A14/12 a 100 hp engine.

And concerning the so-called Klapptaube, I know this name, but in an other context. After a number of accidents in 1913 the Taube got the nickname Klapptaube, something like "ramshackle Taube".

 

[Tuizentfloot]

And here the scan...

 

[airplane176]

Tuizentfloot,

Thank you for the quick response and kind words about my database.

I have added the new information with the source duly noted. A print of the section concerned is attached. Correct me if I misunderstood. I wanted to make sure that I understood the data. I thought that the name Einheitstyp might be just as you said. Again, understanding only English, I wanted to make sure.

My reference for Klapptaube is from Peter Grosz The Taube at War. According to him, some wings did fall off and the name was appropriate. The English expression, clap-trap would seem to come from the same root.

As you say, contemporary "designations" were often just descriptions and not systematic, certainly compared to something like the U.S. military designations adopted later. Even in this system, contemporary designations do not always agree.

Thank you again. I am looking forward to the next part, and if there are any serials, I would be glad to add them.

Roger

 

[hesham]

Oh my God,amazing and marvelous work my dear Tuizentfloot.

 

[Tuizentfloot]

Rumpler's aviation activities after the First World War - Part 4 (end)

The end of the First World War was also the end of the Rumpler-Werke as aircraft builders. In June 1919 the Rumpler-Werke were liquidated.

In the mean time Edmund Rumpler had found new activities in civil aviation, and founded in 1919 the Rumpler-Luftverkehr. The company existed until 1923 and had 28 airplanes, including 19 Rumpler C I (two of which had a passenger cabin).

In the mid-twenties Rumpler went into the automobile construction and built the technically advanced and futuristic looking aerodynamic Tropfenwagen. Due to the economic situation in Germany in those years the car wasn't a commercial succes (only 100 built).

Afterwards he returned to aviation with a number of patents (see the images from the first posting by hesham) and with futuristic projects of transoceanic flying boats (Ru 93 and Ru 98) with 10 engines of 1000 hp of his own design (a patent dated 28 Februari 1921). These projects of transoceanic flying boats were technically unrealisable in those days.

After the nazis came to power in 1933 until his death in 1940 Edmund Rumpler, who was Jewish, was banned from all his activities.

Most of the archives of this talented engineer were destroyed by the nazis.

 

[hesham]

Excellent my dear Tuizentfloot.

 

[Stargazer]

Highly commendable work on an era that is often difficult to properly document.

I suggest that the list and related posts be moved to the "Designation Systems" section where it truly belongs (and of course cross-reference both topics).

 

[Tuizentfloot]

airplane176 wrote:

My reference for Klapptaube is from Peter Grosz The Taube at War. According to him, some wings did fall off and the name was appropriate. The English expression, clap-trap would seem to come from the same root.

Apart form the brief mention by Peter Grosz in The Taube at War I found in my documentation only one other (also brief) mention of the so-called Klapptaube in Kranzhoff's work on Rumpler (pages 153 and 154).

I have tried to translate it in English. Sorry for the probably bad translation, since English is not my mother tongue.

Prior to the Kaisermöver (1913) happened the first and only crash of a Rumpler taube with fatal consequences. In June the firms of Albatros and Rumpler promised the military each the early supply of 12 prototypes of the so-called Klapptaube, with seperate wing parts to facilitate the transport. After being tested succesfully they were dismantled and transported to Döberitz.
At the first testflight of a Rumpler Klapptaube Leutnant Hellmuth von Eckenbrecher noted that the aeroplane flew poorly. Technicians from Rumpler fixed the bracing of the planes anew before transportation to the maneuvres. On 4 September 1913 during the flight the left wing brook off. Von Eckenbrecher and his passenger Leutnant Otto Prins lost their lives in the crash. Afterwards it became clear that first the eyelet of a tension cable was torned off, and then three support cables and the fixture of the wing. Immediately the whole series was grounded. Twenty already delivered planes were discarded from the military.

A question remains. The so-called Klapptaube was apparently a standard military Taube with modifications on the wings. Were the 12 each by Rumpler and Albatros included in the total number delivered to the military in 1913?

The story of the nickname "Klapptaube" I once heard could be right. Every early plane had a number of mostly non fatal mishaps, and so had the Taube, which was the most popular and most built German plane. During the Kaisermanöver of 1913 other more or less spectacular accidents with Taubes arrived (e.g. a non fatal crash from a height of 50 metres). Possibly the nickname was born with reference to these accidents.

I attach a photograph of the crash of the Kalpptaube (source: Kranzhoff, p. 153).

 

[hesham]

Amazing,many thanks my dear Tuizentfloot.

 

[hesham]

What was C Type as experimental ?,not related to C.I.

 

[Apophenia]

What was C Type as experimental ?,not related to C.I.

Probably a reference to the 1915 one-off Rumpler C II prototype - aka Ru 5A3. (But some context or a date would be useful.)

 

[hesham]

Probably a reference to the 1915 one-off Rumpler C II prototype - aka Ru 5A3. (But some context or a date would be useful.)

No,the C Type is not C.II,the C.II was powered by Argus As III and C Type was powered by Daimler engine.

 

[Nicknick]

Hi,


from Luftfahrt International 12/1981,here is some ideas and aircraft designed
by Rumpler,but I suspect in drawing 4,may be an American design based on
Rumpler works,I can' translate well.

The idea of using pressurized air for power transfer including reheating with exhaust gases was not uncommon at that time:

Diesel-Pneumatic Locomotives.

Douglas Self, Diesel-Pneumatic Locomotive, V3201

www.douglas-self.com

For locomotives it made much more sense, since it replaces a gearbox (or electrical power transission), which wasn't a standart item for locomotives those days.

 

[Apophenia]

No,the C Type is not C.II,the C.II was powered by Argus As III and C Type was powered by Daimler engine.

See what I mean about context?