Junkers Projects and Prototypes until 1918

[hesham]

Hi,


http://translate.google.com/translate?sl=de&tl=en&js=n&prev=_t&hl=ar&ie=UTF-8&eotf=1&u=http%3A%2F%2Fwww.ju-f13.de%2Findex.html

 

[Jemiba]

Interesting find, Hesham, especially the JG.1, the construction of it was actually started, until the built
components had to be destroyed on order of the allied control comission.
And thanks for pointing us to that site, which really gives a good overview not only for the F 13, but also
over the early history of the Junkers company.

 

[hesham]

Thank you my dear Jemiba.

 

[hesham]

Hi,


various Junkers wing shapes of WW1;


http://alternathistory.org.ua/superbombardirovshchik-kaizera-vilgelma

 

[hesham]

Hi,


here is the J.6 fighter project 3-view,was there any drawing to J.12 fighter
derivative ?.


http://flyingmachines.ru/Site2/Crafts/Craft29035.htm

 

[Cy-27]

As requested by Wurger, here are some more details from Gunter Schmitt's book on Junkers project types:

Junkers Project 1 - Junkers J3 - first light metal aircraft

( see also http://hugojunkers.pytalhost.com/ju_j3_a1.htm )

Design was under the auspices of Dr Mader who was chief engineer at Junkers. Although production was started, it was never completed. The J3 was a single-seat low wing monoplane which pioneered the use duralumin corrugated thin sheet during testing of parts.

Work was stopped because of the excessive expense of the technical research and the lack of commercial interest. Work shifted onto the J4 design instead.

Wing Span: 11.45 m
Length: 6.67 m
Height: 3.1 m
Engine: 14 cylinder Oberursel U III (113.9 kW / 155 hp))

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Junkers Project 2 - Junkers J5 - small light , low-wing cantilever monoplane in three planned versions designed but never built .

( See also http://hugojunkers.pytalhost.com/ju_j5_a1.htm )

In early 1917 work started a study into a small, low-wing cantilever monoplane. Three versions were planned each with differing wings forms and control services.

For the first variant, the powerplant was to be installed in the fuselage forward of the pilot being fixed to the propeller by a connecting rod.

In the second and third versions, the engine was behind the pilot with a lengthened propeller shaft running through the fuselage. In this version, the wing contours were rounded

J5 (version 1)
Drawing Date: 3rd January 1917
Engine: Oberursel UR II (81 kW / 110 hp) rotary engine or Siemens Sh II (88.2 kW / 120 hp) rotary engine
Wing Span: 11.8 m
Length: 6.75 m
Height: 2.7 m
Wing Area: 12.00 sq m

J5 (version 2)
Drawing Date: 18th January 1917
Engine: Siemens Sh II (88.2kW / 120 hp) rotary engine
Wing Span: 11.8 m
Length: 8.0 m
Height: 2.8 m
Wing Area: 20.00 sq m

J5 (version 3)
Engine: Mercedes D IIIa (117.6 kW / 160 hp) water-cooled rotary engine
No data for this third option.


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Junkers Project 3 - Junkers J6 - high-wing cantilever monoplane from August 1917. At the wars end, the prototype was half-completed at Dessau.

( See also http://hugojunkers.pytalhost.com/ju_j12_a1.htm )

Design started in August 1917 on this very small all-metal high-wing parasol monoplane. Its small size compromised its manoeuvrability. The engine was found to be far too heavy when located behind the pilot.

The high elevator and fin was an attempt to improve handling. The aircraft was fitted with a 2.8 m diameter airscrew thanks to a high undercarriage. A streamline fuel tank was located in the slender fuselage. When the armistice was signed the prototype was 50% complete in the Junkers workshop in Dessau.

Engine: Siemens Sh III (117.6 kW / 160 hp) engine
Wing Span: 8.0 m
Length: 5.6 m
Height: 2.62 m
Wing Area: 12.00 sq m
Maximum Speed: 190 km/h

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Junkers Project 4 - Junkers R1 - four engine giant monoplane heavy bomber project in two versions, both low-wing.

Junkers Project 5 - Junkers R2 - twin engine giant monoplane heavy bomber project.

Junkers Project 6 - Junkers R3 - four engine giant flying boat project.

( See also http://www.secretprojects.co.uk/forum/index.php/topic,3253.msg177951.html#msg177951 )


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Source:

Hugo Junkers and his Aircraft (Gunter Schmitt) Transpress (GDR) 1988 ISBN 3344003038

 

[Wurger]

Great Cy-27! Keep on pumping more Junkers projects . I can`t wait for the 1930`s.

 

[hesham]

Wow,incredible projects Cy-27,please continue.

 

[hesham]

Hi,


a strange Junkers aircraft was in a patent of 1910,Luftfahrt 2/1980.

 

[Retrofit]

This strange aircraft is also present in Hugo Junkers' US Patent n° 1,114,364 filed in January 1911 and in which are shown both his "Flying wing" concept and his "Lifting fuselage" concept (i.e. years before De Monge & Burnelli's ones ).

http://www.google.com/patents/US1114364

 

[hesham]

Hi,


here is the Junkers JM1 or Junkers marine aircraft variants,from Entwurf 1 to 6,
and I copy the article which was in 3 pages into a four pages,by dividing the
last page into two pictures,to make it east to read.


Luftfahrt 10/1980.

 

[hesham]

Hi,


here is the Junkers JM2 drawing.

 

[hesham]

Hi,


various Junkers wing shapes of WW1;


http://alternathistory.org.ua/superbombardirovshchik-kaizera-vilgelma

here is the shape of wings by Junkers company in 1915/16.

 

[Jemiba]

"Examples for models to determine the effects of wing shape and span-to-chord ratio"

 

[hesham]

Thank you my dear Jemiba,


and here is the J.5 general layout and its variants,it remained a project only,and it
gained a drawing numbers # 912,1124 and 1140.

 

[papacavy]

This is a fascinating subject. I am very interested in any World War One & Between the Wars German projects. Does anyone have information about a Junkers airship project? I'd appreciate seeing some drawings and data for a writing project I am working on.

Keep 'em Flying, Boys!

Chuck B)

 

[Jemiba]

After the reorganisation of the "Various Junkers projects" thread, types and projects,
that were drawn or even built until the end of WW I should be posted here.

 

[Stargazer]

Great effort, Jemiba, thanks a lot!

 

[hesham]

Hi,

here is a Model for Junkers aircraft of 1910.

 

[hesham]

From Le Fana 102.

 

[Avimimus]

Can anyone elucidate the engine type/layout in this drawing?

https://www.secretprojects.co.uk/forum/index.php?action=dlattach;topic=23180.0;attach=179459;image

 

[Jemiba]

Here http://www.junkers.de/kalenderblatt/3-dezember-1909-die-idee-des-dicken-fl%C3%BCgels-wird-geboren
it is said, that this was a "Schnelles Metallflugzeug (Eindecker) mit 2 Propellern and 2 Motoren à
200 PS" (fast metal aircraft with two propellers and two engines with 200 hp each), a design, that
couldn't be realised, because there were no engines with that power in Germany in 1915.
To my opinion, the drawing shows 4 engine blocks with 4 cylinders each, grouped around a gear box for each prop.
This could have been an attempt to reduce the height of the engine, so that it would fit into the wing and
to overcome the problem of the too low powere of the engines back then. Just speculation, of course ..

 

[Schneiderman]

Maybe they are an early sketch of an opposed piston engine, the layout he used later for the Jumo diesel engines

 

[hesham]

Hi,

Die Idee des dicken Flügels wird geboren - Junkers

Am 3. Dezember 1909 skizzierte der Aachener Hochschulprofessor Hugo Junkers eine Idee, die nach ihrer praktischen Ausführung im Jahre 1915 den Flugzeugbau in eine völlig neue Richtung lenkte. Wie kam ein „Professor für die Leitung des maschinentechnischen Laboratoriums“, als der der 38jährige...

hugo.junkers.de