# Potez IX

> Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Potez_IX
> Markdown URL: https://mediated.wiki/source/Potez_IX.md
> Source: https://en.wikipedia.org/wiki/Potez_IX
> Source revision: 1321133167
> License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/)

Potez IX General information Type Airliner National origin France Manufacturer Potez Number built 30 History First flight 1920 Developed from SEA IV

The **Potez IX** was an early airliner produced in France in the 1920s, a further development of the [SEA IV](/source/SEA_IV) that [Henry Potez](/source/Henry_Potez) had co-designed during the First World War.[1][2]

## Design and development

The design mated an entirely new fuselage to the wing and tail structures of the earlier military aircraft.[1][2][3] This fuselage was very deep, nearly filling the interplane gap, and carried within it a fully enclosed cabin with seating for four passengers.[1][2][3] The nose area was carefully streamlined[2] with curved aluminium,[4] but other aspects of the construction were conventional for the day; wooden structures skinned in plywood (the passenger cabin) or fabric (the rest of the aircraft).[5] The pilot sat in an open cockpit aft of the cabin.[2][5]

The prototype flew in 1920,[6] and was followed by around thirty production examples that differed from it in having a larger tail fin and rudder.[2] The [Compagnie générale transaérienne](/source/Compagnie_g%C3%A9n%C3%A9rale_transa%C3%A9rienne) operated Potez IXs on cross-channel air services between Paris and London.[6] The [Compagnie Franco-Roumaine de Navigation Aérienne](/source/Compagnie_Franco-Roumaine_de_Navigation_A%C3%A9rienne) flew these[5] on routes linking Paris to [Warsaw](/source/Warsaw) via [Strasbourg](/source/Strasbourg) and [Prague](/source/Prague), and from Paris to [Budapest](/source/Budapest) via Strasbourg and [Vienna](/source/Vienna), later extending its services to [Bucharest](/source/Bucharest) and [Constantinople](/source/Constantinople).[6] Franco-Roumaine, and its successor airline CIDNA operated the Potez IX until 1928.[1][7]

The **Potez IX S**, a one-off modified version with wings of larger area,[2] flew in the Grand Prix de l'Aéro Club de France in June 1921 with [Gustave Douchy](/source/Gustave_Douchy) at the controls.[8] Douchy was disqualified in the third stage of the competition.[8]

## Specifications

Potez IX 3-view Drawing from Les Ailes December 29,1921

*Data from* "The Paris Aero Show 1921" 22 December 1921, p.842

**General characteristics**

- **Crew:** One pilot

- **Capacity:** 4 passengers

- **Length:** 9.80 m (32 ft 2 in)

- **Wingspan:** 14.00 m (46 ft 0 in)

- **Height:** 3.12 m (10 ft 3 in)

- **Wing area:** 46.0 m2 (495 sq ft)

- **Empty weight:** 1,250 kg (2,750 lb)

- **Gross weight:** 2,050 kg (2,511 lb)

- **Powerplant:** 1 × [Lorraine-Dietrich 12Da](/source/Lorraine-Dietrich_12Da) , 280 kW (370 hp)

**Performance**

- **Maximum speed:** 200 km/h (125 mph, 109 kn)

- **Service ceiling:** 6,100 m (20,000 ft)

- **Rate of climb:** 4.2 m/s (820 ft/min)

## Notes

1. ^ [***a***](#cite_ref-JEA_1-0) [***b***](#cite_ref-JEA_1-1) [***c***](#cite_ref-JEA_1-2) [***d***](#cite_ref-JEA_1-3) Taylor 1989, p.747

1. ^ [***a***](#cite_ref-IEA_2-0) [***b***](#cite_ref-IEA_2-1) [***c***](#cite_ref-IEA_2-2) [***d***](#cite_ref-IEA_2-3) [***e***](#cite_ref-IEA_2-4) [***f***](#cite_ref-IEA_2-5) [***g***](#cite_ref-IEA_2-6) *The Illustrated Encyclopedia of Aircraft*, p.2760

1. ^ [***a***](#cite_ref-Paris_841_3-0) [***b***](#cite_ref-Paris_841_3-1) "The Paris Aero Show 1921" 22 December 1921, p.841

1. **[^](#cite_ref-Paris_764_4-0)** "The Paris Aero Show 1921" 17 November 1921, p. [764](https://www.flightglobal.com/pdfarchive/view/1921/1921%20-%200764.html)

1. ^ [***a***](#cite_ref-Paris_842_5-0) [***b***](#cite_ref-Paris_842_5-1) [***c***](#cite_ref-Paris_842_5-2) "The Paris Aero Show 1921" 22 December 1921, p.842

1. ^ [***a***](#cite_ref-stdp176_6-0) [***b***](#cite_ref-stdp176_6-1) [***c***](#cite_ref-stdp176_6-2) Stroud 1966, p. 176

1. **[^](#cite_ref-stdp177_7-0)** Stroud 1966, p. 177

1. ^ [***a***](#cite_ref-Grand_Prix_8-0) [***b***](#cite_ref-Grand_Prix_8-1) "The French Aero Club Grand Prix", p.430

## References

Wikimedia Commons has media related to [Potez IX](https://commons.wikimedia.org/wiki/Category:Potez_IX).

- Coroller, Jean-Louis (September 1998). "Les premièrs avions Henry Potez (première partie)" [The First Aircraft of Henry Potez]. *Avions: Toute l'aéronautique et son histoire* (in French). No. 66. pp. 8–14. [ISSN](/source/ISSN_(identifier)) [1243-8650](https://search.worldcat.org/issn/1243-8650).

- ["The French Aero Club Grand Prix"](https://archive.org/details/sim_flight-international_1921-06-23_13_25/page/430/mode/2up). *[Flight](/source/Flight_International)*. 23 June 1921. p. 430. Retrieved 2021-10-29.

- *The Illustrated Encyclopedia of Aircraft*. London: Aerospace Publishing.

- Stroud, John (1966). *European Transport Aircraft since 1910*. London: Putnam.

- ["The Paris Aero Show 1921"](https://archive.org/details/Flight_International_Magazine_1921-11-17-pdf/page/n11/mode/2up). *[Flight](/source/Flight_International)*. 17 November 1921. pp. 758–765. Retrieved 2021-10-29.

- ["The Paris Aero Show 1921"](https://archive.org/details/Flight_International_Magazine_1921-12-22-pdf/page/n3/mode/2up). *[Flight](/source/Flight_International)*. 22 December 1921. pp. 839–842. Retrieved 2021-10-29.

- Taylor, Michael J. H. (1989). *Jane's Encyclopedia of Aviation*. London: Studio Editions. [ISBN](/source/ISBN_(identifier)) [0-7106-0710-5](https://en.wikipedia.org/wiki/Special:BookSources/0-7106-0710-5).

- Warner, Edward P. (May 2008). "Les avions de ligne au banc d'essai en 1921" [Airlines on the Test Bench in 1921]. *Le Fana de l'Aviation* (in French) (462): 44–55. [ISSN](/source/ISSN_(identifier)) [0757-4169](https://search.worldcat.org/issn/0757-4169).

v t e Potez and Potez-CAMS aircraft Potez VII VIII IX X XI XII XV XVII XVIII XIX XXII 23 24 25 26 27 28 29 31 32 33 34 35 36 37 38 39 40 41 42 43 45 49 50 501 506 51 53 54 56 58 60 62 63 65 661 662 67 220 230 75 84 91 94 Potez-CAMS 141 160 161

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