# Jagdstaffel 40

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Jasta 40 Active 1917–1918 Country German Empire Branch Luftstreitkräfte Type Fighter squadron Engagements World War I

Military unit

**Royal Saxon Jagdstaffel 40**, commonly abbreviated to **Jasta 40**, was a "hunting group" (i.e., fighter squadron) of the *[Luftstreitkräfte](/source/Luftstreitkr%C3%A4fte)*, the air arm of the [Imperial German Army](/source/Imperial_German_Army) during [World War I](/source/World_War_I). The unit would score over 54 aerial victories during the war, including [three observation balloons downed](/source/Balloon_buster). The squadron's victories came at the expense of five killed in action, one killed in a flying accident, and six wounded in action.[1]

## History

Jasta 40 was founded on 30 June 1917 at *Fliegerersatz-Abteilung* ("Replacement Detachment") 6, [Grossenhain](/source/Grossenhain), Germany. It became operational on 15 August 1917. It scored its first air-to-air victory on 25 September 1917.[1] It would serve until war's end.

## Commanding officers (*[Staffelführer](/source/Staffelf%C3%BChrer)*)

- [Oberleutnant](/source/Oberleutnant) Eilers

- [Helmut Dilthey](/source/Helmut_Dilthey): Early April 1918

- [Carl Degelow](/source/Carl_Degelow): circa 9 July 1918[1]

## Duty stations

- Möntingen/[Metz](/source/Metz): 15 August 1917

- [Mars-la-Tour](/source/Mars-la-Tour): 14 September 1917

- [Masny](/source/Masny): 15 March 1918

- [Roubaix](/source/Roubaix)

- Meuines

- Wynghene

- [Gontrode](/source/Melle%2C_Belgium)[1]

## Notable personnel

- Carl Degelow

- Helmut Dilthey

- [Willi Rosenstein](/source/Willi_Rosenstein)

- [Hermann Gilly](/source/Hermann_Gilly)[1]

- [Hans Jeschonnek](/source/Hans_Jeschonnek)

## Operations

Jasta 40 began its combat operations on 15 August 1917, in support of *[Armee-Abteilung A](/source/Armee-Abteilung_A)*. However, on 14 September 1917, it moved to support of *[Armee-Abteilung C](/source/Armee-Abteilung_C)*. On 15 March 1918, it shifted again, to support *[17 Armee](/source/17th_Army_(German_Empire))*. The following month, it was assigned to the *[4 Armee](/source/4th_Army_(German_Empire))* Front, supporting this formation from various French [aerodromes](/source/Aerodrome) until the Armistice.[1]

## References

1. ^ [***a***](#cite_ref-FOOTNOTEFranksBaileyGuest199345_1-0) [***b***](#cite_ref-FOOTNOTEFranksBaileyGuest199345_1-1) [***c***](#cite_ref-FOOTNOTEFranksBaileyGuest199345_1-2) [***d***](#cite_ref-FOOTNOTEFranksBaileyGuest199345_1-3) [***e***](#cite_ref-FOOTNOTEFranksBaileyGuest199345_1-4) [***f***](#cite_ref-FOOTNOTEFranksBaileyGuest199345_1-5) [Franks, Bailey & Guest (1993)](#CITEREFFranksBaileyGuest1993), p. 45.

**Bibliography**

- [Franks, Norman](/source/Norman_Franks); Bailey, Frank W. & Guest, Russell F. (1993). *Above The Lines: The Aces and Fighter Units of the German Air Service, Naval Air Service, and Flanders Marine Corps, 1914–1918*. London, UK: Grub Street. [ISBN](/source/ISBN_(identifier)) [978-0-948817-73-1](https://en.wikipedia.org/wiki/Special:BookSources/978-0-948817-73-1).

v t e Jastas of the Imperial German Army Air Service Prussian 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 17 18 19 20 25 26 27 29 30 31 33 36 37 38 39 41 42 43 45 46 48 49 50 51 52 53 55 56 57 58 59 60 61 62 63 65 66 67 68 69 70 71 73 74 75 81 82 83 85 86 87 88 89 90 Bavarian 16 23 32 34 35 76 77 78 79 80 Saxon 21 22 24 40 44 54 72 Württembergian 28 47 64 84

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Adapted from the Wikipedia article [Jagdstaffel 40](https://en.wikipedia.org/wiki/Jagdstaffel_40) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Jagdstaffel_40?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.