Nieuport-Delage NiD 640

The Nieuport-Delage NiD 640 was a French four-passenger transport monoplane built by Nieuport-Delage.

NiD 640
Role four-seat cabin monoplane
National origin France
Manufacturer Nieuport-Delage
First flight 1927
Introduction 1930
Primary user Société des Transports Aériens Rapides
Number built 14

Development

The NiD 640 was an all-wood high-wing cantilever monoplane powered by a nose-mounted radial engine. An enclosed cockpit for two-crew forward of the wing and a cabin for four passengers was aft. The NiD 640 was powered by 160 kW (220 hp) Wright J-5C radial engine and was followed by 12 production aircraft designated NiD 641 powered by a 180 kW (240 hp) Lorraine 7M Mizar radial engine. The NiD 640 was converted to an ambulance aircraft and later had a Mizar engine fitted to bring it up to 641 standard. One aircraft was powered by a 175 kW (235 hp) Armstrong Siddeley Lynx Major engine and designated the NiD 642 but it did not find a buyer and was scrapped. Seven NiD 641 aircraft were flown by Société des Transports Aériens Rapides (STAR), a subsidiary of Nieport-Delage, on cargo and passenger services from Paris.

Variants
NiD 640
Prototype with a 160 kW (220 hp) Wright J-5C radial engine, one built later converted to a 641.
NiD 641
Production aircraft with a 180 kW (240 hp) Lorraine 7M Mizar radial engine, 12 built.
NiD 642
Powered by a 175 kW (235 hp) Armstrong Siddeley Lynx Major engine, one built.

Operators
 Brazil
 France
  • Société des Transports Aériens Rapides

Specifications (NiD 641)
Nieuport-Delage NiD 640 3-view drawing from NACA Aircraft Circular No.92

Data from L'Aeronautique, July 1928[1], Jane's all the World's Aircraft 1928[2]

General characteristics

  • Crew: Two
  • Capacity: Four passengers / mail / 700 kg (1,500 lb) disposable load
  • Length: 9.45 m (31 ft 0 in)
  • Wingspan: 15.40 m (50 ft 6 in)
  • Height: 3.19 m (10 ft 6 in)
  • Wing area: 30.9 m2 (333 sq ft)
  • Empty weight: 1,050 kg (2,315 lb)
  • Gross weight: 1,750 kg (3,858 lb)
  • Powerplant: 1 × Lorraine 7M Mizar 7-cylinder radial, 170 kW (230 hp)

Performance

  • Maximum speed: 205 km/h (127 mph, 111 kn) at ground level
  • Service ceiling: 5,500 m (18,000 ft) absolute
  • Time to altitude: 1,000 m (3,300 ft) in 5 minutes 30 seconds; 2,000 m (6,600 ft) in 12 minutes 30 seconds
  • Wing loading: 56.6 kg/m2 (11.6 lb/sq ft)
  • Power/mass: 0.099 kW/kg (0.06 hp/lb)
  • Landing speed: 88 km/h (55 mph)
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References
  1. "Avions Nieuport-Delage". L'Aéronautique (110): 42. July 1928. Retrieved 16 February 2018.
  2. Grey, C.G., ed. (1928). Jane's all the World's Aircraft 1928. London: Sampson Low, Marston & company, ltd. p. 116c.

Further reading
  • Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions.
  • The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985). Orbis Publishing.
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