Potez IX
| Potez IX | |
|---|---|
| Role | Airliner |
| National origin | France |
| Manufacturer | Potez |
| First flight | 1921 |
| Number built | 30 |
| Developed from | SEA IV |
The Potez IX was an early airliner produced in France in the 1920s, a further development of the SEA IV that Henry Potez had co-designed during the First World War.[1][2] 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 1921 and was followed by around thirty production examples that differed from it in having a larger tail fin and rudder.[2] The Franco-Roumanian Aviation Company flew these[5] on routes linking Paris to London,[1] Strasburg,[5] Prague,[5] Warsaw,[1] and Budapest[1] until 1928.[1]
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 at the controls.[6] Douchy was disqualified in the third stage of the competition.[6]
Specifications
Data from "The Paris Aero Show 1921" 15 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: 13.12 m (10 ft 3 in)
- Wing area: 46.0 m2 (495 ft2)
- Empty weight: 1,250 kg (2,750 lb)
- Gross weight: 2,050 kg (2,511 lb)
- Powerplant: 1 × Lorraine-Dietrich 12Da, 280 kW (370 hp)
Performance
- Maximum speed: 200 km/h (125 mph)
- Service ceiling: 6,100 m (20,000 ft)
- Rate of climb: 4.2 m/s (820 ft/min)
Notes
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- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Taylor 1989, p.747
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 The Illustrated Encyclopedia of Aircraft, p.2760
- ↑ 3.0 3.1 "The Paris Aero Show 1921" 15 December 1921, p.841
- ↑ "The Paris Aero Show 1921" 17 November 1921, p.764
- ↑ 5.0 5.1 5.2 5.3 5.4 "The Paris Aero Show 1921" 15 December 1921, p.842
- ↑ 6.0 6.1 "The French Aero Club Grand Prix", p.430
