Junkers J-Series Designations

Triggered by the article found by hesham, I tried to make a list of the J-designations, certainly
still incomplete, many types with K-designations seem to have started with the number as a
J-designation.

J 1 : First full metal aircraft, monoplane, built 1915
J 2 : Full metal fighter aircraft, 1916, six built
J 3 : Project for a full metal fighter aircraft, later developed into
the J 7.
J 4 : Armoured single engined, twin seat ground attack aircraft, sesqiplane,
184 built until armistice.

J 7 : Full metal fighter aircraft, 1917, one built, not accepted for
series production after the prototype was destroyed in a landing
accident with Antony Fokker at the controls (!), who in the event
got the production order for his contender.
J 8 : Twin seat development of the J 9, multi-role aircraft, one built.
J 9 : Single seat fighter, 1918,"Junkers D.I", development of the J 7, 47 built
J 10 : Development of the J 8 as ground attack aircraft
J 11 : Full metal, twin seat monoplane float plane, based on the J 10, 3 built.
J 12 : Full metal monoplane passenger aircraft for 4 pax, based on the J 10, project only
J 14 ; Big monoplane, project
J 15 : Light passenger aircraft for two pax + pilot, 1920, The wing could be changed from
a high to a low position, one built for testing
J 16 : Often reffered to as the pre-project to the K 16 small airliner (?)
J 17 : Sports air:craft, monoplane, mentioned March/April 1921
J 18 : Light passenger aircraft, similar to K 16, mentioned March 1921
J 19 : The later T 19 trainer/touring aircraft, 1922
J 21 : T 21/H 21, parasol twin seat recce aircraft, 1923
J 22 : T 22, single seat fighter version of the J 21
designation seems to have been used twice
J 22 : Large aircraft ("Großflugzeug") JG -1, construction stopped
in 1921 on order of the allied aviation control commision (ILUK)
J 25 : Improved J 21 with more powerful engines

J 40 : Long range twin hull with special equipment (?)
(suggests, that only the equipment lead to the new designation)
J 1000: Ultra-large flying bout project, twin hull canard design

Excellent work my dear Jemiba,


and here is the J.5;
http://www.secretprojects.co.uk/forum/index.php/topic,177.105.html


Also the J.6 Info and drawing;


For the J.28,J.42,J.44,J.54,J.56 & J.58,please see;


http://www.junkers.de.vu/

Did a J-list myself some time ago, Jemiba. Can fill a couple of missing numbers.
If you're interested I can send you my Excel file.

OK Skyblazer,and many thanks.

A minor note, the J 12 project was 3 pax + pilot.

I don't know if this is useful but, according to Lennart Andersson, Junkers type letters (other than J) were, in July 1919, linked to project code names. These were:

J 13 - F 13/Type F (Freyja)
J 16 - K 16/Type K (Kriemhilde)
J 19 - T 19/Type T (Thor)
J 20 - A 20/Type A (Aegir) and J 20 - P 20/Type P (Poseidon)
J 21 - H 21/Type H (Hagen)
J 22 - S 22/Type S (Siegfried)
J 23 - U 23/Type U (Uranos)
J 24 - G 24/Type G (possibly just for Großflugzeug)

"Only in July 1924 the internal designations and the official designations were finally combined to form the more familiar designations F 13, K 16, T 19, A 20, H 21, S 22, U 23 and G 24, although the J-number designations were still retained for internal use."

http://www.artiklar.z-bok.se/Junkers.html

Thank you my dear Apophenia.

My own chart (below) concurs with what Apophenia shared. Very interesting to finally learn the meaning of the letter prefixes as referring to Norse mythology and such!

Chart removed until updated version replaces it.

Amazing list Skyblazer,many thanks.

Excellent list Skyblazer (and Stéphane)!

The Junkers-Larsen designations don't seem to correspond to Junkers' Type list. The JL-6 is presumably after the number of seats. But the JL-12?

Junkers-Larsen JL-6 had a BMW IIIa 6-cylinder engine, JL-12 had a 12-cylinder Liberty 12A engine.

Roger

airplane176 said:

Junkers-Larsen JL-6 had a BMW IIIa 6-cylinder engine, JL-12 had a 12-cylinder Liberty 12A engine.

Roger

Click to expand...

Thanks for the Info Roger,and welcome aboard.

airplane176 said:

Junkers-Larsen JL-6 had a BMW IIIa 6-cylinder engine, JL-12 had a 12-cylinder Liberty 12A engine.

Click to expand...

Excellent! Thanks for that Roger

The Junkers early civil Types designation.

From Junkers-Projektbezeichnungen bis 1935