Engineering:Blériot-SPAD S.34
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| S.34 | |
|---|---|
| |
| Role | Trainer aircraft |
| Manufacturer | Blériot |
| Designer | André Herbemont |
| First flight | 16 July 1920 |
| Introduction | 1920 |
| Retired | 1936 |
| Primary users | French Air Force Finnish Air Force |
| Number built | 150 |
The Blériot-SPAD S.34 was a French twin-seat, single-engine biplane flight training aircraft designed in 1920. The side-by-side seating arrangement was unique for its time. 150 aircraft were built, 125 for the French Air Force , who used them until 1936.
The Finnish Air Force purchased two S.34s in 1921. Due to inadequate maintenance they did not last long and were withdrawn from service by 1925.
Variants
- Bleriot-SPAD S.34-1
- First Bleriot-SPAD S.34 prototype.
- Bleriot-SPAD S.34-2
- Second Bleriot-SPAD S.34 prototype.
- Bleriot-SPAD S.34-3
- Third Bleriot-SPAD S.34 prototype.
- Bleriot-SPAD S.34
- Two-seat primary trainer biplane.
- Bleriot-SPAD S.34 bis
- Improved variant, powered by a 130-hp (97-kW) Clêrget 9B rotary piston engine. Three were built for the Aéronavale.
Operators
France
- Aéronautique Militaire - (119 aircraft)
- Aéronavale - (6 S.34-bis aircraft)
- Blériot flying school - (16 aircraft)
Argentina
- (6 aircraft)
Finland
- Finnish Air Force - (2 aircraft)
Bolivia
- Bolivian Air Force (1 aircraft)
Specification (S.34)
Data from Les Ailes, August 1921[1]
General characteristics
- Crew: One instructor, one pupil
- Length: 6.50 m (21 ft 4 in)
- Upper wingspan: 8.12 m (26 ft 8 in)
- Lower wingspan: 7.40 m (24 ft 3 in)
- Height: 2.36 m (7 ft 9 in)
- Wing area: 21 m2 (230 sq ft)
- Airfoil: Albatrs RA.54
- Empty weight: 440 kg (970 lb)
- Gross weight: 690 kg (1,521 lb)
- Powerplant: 1 × Le Rhône 9C 9-cylinder rotary engine, 60 kW (80 hp)
- Propellers: 2-bladed
Performance
- Maximum speed: 136 km/h (85 mph, 73 kn)
- Service ceiling: 4,000 m (13,000 ft)
- Time to altitude: 17 min 7 s to 2,000 m (6,600 ft)
- Landing speed: 40 km/s (89,000 mph; 78,000 kn)
References
- ↑ Lemonon, E.-H. (18 August 1921). "La biplaces Spad-Herbemont". Les Ailes (938): 2–3. http://gallica.bnf.fr/ark:/12148/bpt6k6555955d/f2.item.zoom.
- Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions.
- Keskinen, Kalevi; Partonen, Kyösti and Stenman, Kari: Suomen Ilmavoimat I 1918-27, 2005. ISBN:952-99432-2-9.
- Keskinen, Kalevi; Stenman, Kari and Niska, Klaus: Suomen ilmavoimien lentokoneet 1918-1939, Tietoteos, 1976.
- Hirschauer, Louis; Dollfus, Charles, eds (1921). L'Année Aéronautique: 1920-1921. Paris: Dunod. p. 35. https://gallica.bnf.fr/ark:/12148/bpt6k65534129/f47.item.
External links
- "1921 Paris Air Salon: SPAD 34" FLIGHT, November 24, 1921, page 778 for photo and page 779 for description
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