User:TheLongTone/Mammoth

Mammoth
Role	Passenger aircraft
Manufacturer	Blériot-SPAD
First flight	August or September 1920
Number built	1
Developed from	Blériot 74

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74, crahed on first flight due to inadequately braced tail surfaces ^[1]

The Blériot 75 or Blériot Aérobus was a four engined passenger aircraft produced by Blériot-SPAD immediately after the first world war. Only the single prototype was built.

Developed from the Blériot 74 bomber, the Type 75 used the same backward staggered five-bay equal-span wing assembly, the struts forming the innermost bay havingan X arrangement that was connected to the engine nacelles. The upper wing was straight, while the lower had pronounced [[dihedral (aeronautics}]]. It was powered by four 220 kW (300 hp) Hispano-Suiza 8Fb engines, one pair mounted on the upper wing and the other pair on the lower wing.

It had a crew of two and could carry 28 passengers, seated on two levels.

eight wheeled undercarriage, the Biplane tail with aerodynamically balanced elevators on both surfaces and twin rudders. Novel aileron balance mechanism, with the balancing surface mounted on a pivoted arm in front of the wing leading edge and linked to the aileron by cables.^[2]

^[3]

First flown in late 1919 by Joseph Sadi-Lecointe.^[4] On 19 January 1920 it crashed during a trial flight at Buc, fatally injuring Bartholot.^[5]

It was repaired ...http://www.flightglobal.com/pdfarchive/view/1919/1919%20-%201054.html?search=bleriot...or rebuilt: this ref has slightly greater span & wrea,,,and made some trial flights at the end of the year Piloted by Jean Casale Demonstration flights at the aviation meeting at Buc in October 1921^[6] In November 1921 a trial flight with a full load managed to reach an altitude of 2,700 metres (8,900 ft) and remain aloft for nearly two hours.^[7]

Specifications

Data from ^[8]

General characteristics

Crew: 1 pilot, 1 flight engineer
Capacity: 28
Length: 18.30 m (60 ft 0 in)
Wingspan: 27.0 m (88 ft 7 in)
Height: 6.40 m (21 ft 0 in)
Wing area: 144 m² (1,550 sq ft)
Empty weight: 3,800 kg (8,378 lb)
Gross weight: 7,550 kg (16,645 lb)
Powerplant: 4 × Hispano-Suiza 8Fb V-8 water-cooled piston engine, 220 kW (300 hp) each

Performance

Maximum speed: 150 km/h (93 mph, 81 kn)

References

^ "The Experimental Bleriot 4-engined biplane". 15 January 1920. p. 78.
^ The Blériot-SPAD Stand Flight 1 January 1920
^ [1]Flight 1 January 1920
^ "Les Grandes Avions Français". l'Aérophile: 307. 1–15 October 1919.{{cite journal}}: CS1 maint: date format (link)
^ "The Blériot mishap". 29 January 1920. p. 139.
^ Bleriot Mammoth Flies Flight 9 September 1920
^ Bleriot Mammoth up for Nearly Two Hours Flight 11 November 1920
^ Parmentier, Bruno. "Bleriot 75".

[1] "The Experimental Bleriot 4-engined biplane". 15 January 1920. p. 78.

[2] The Blériot-SPAD Stand Flight 1 January 1920

[3] [1]Flight 1 January 1920

[4] "Les Grandes Avions Français". l'Aérophile: 307. 1–15 October 1919.{{cite journal}}: CS1 maint: date format (link)

[5] "The Blériot mishap". 29 January 1920. p. 139.

[6] Bleriot Mammoth Flies Flight 9 September 1920

[7] Bleriot Mammoth up for Nearly Two Hours Flight 11 November 1920

[8] Parmentier, Bruno. "Bleriot 75".

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