TheNord 1750 Norelfe was a 1950sFrench three-seathelicopter built byNord Aviation and designed byJean Cantinieau.

The 1750 Norelfe was based on theMatra-Cantinieau MC-101A, an earlier helicopter designed byJean Cantinieau. It had a single main rotor, with torque control through a movable duct at the end of the tailboom. Powered by aTurbomeca Artouste turboshaft, the first of two Norelfes flew on 28 December 1954.^[1]

The company sold the two helicopters and the design rights toAerotécnica of Spain who redesignated them theAerotécnica AC-13A.^[1] Aerotécnica went on to produce a larger five-seat version, theAerotécnica AC-14 which was used by theEjército del Aire (Spanish Air Force).

Data from Jane's All the World's Aircraft 1958-59^[2]

General characteristics

• Crew: 1
• Capacity: 2 pax
• Length: 7.48 m (24 ft 6 in)
• Height: 2.75 m (9 ft 0 in) to top of rotor pylon
• Empty weight: 575 kg (1,268 lb)
• Gross weight: 880 kg (1,940 lb)
• Fuel capacity: 115 L (30 US gal; 25 imp gal)
• Powerplant: 1 ×Turbomeca Artouste I turboshaft, 130 kW (170 hp) at transmission (rated to 260 shp (194 kW))
• Main rotor diameter: 9.04 m (29 ft 8 in)
• Main rotor area: 64 m² (690 sq ft)

Performance

• Maximum speed: 140 km/h (87 mph, 76 kn)
• Cruise speed: 124 km/h (77 mph, 67 kn)
• Range: 140–345 km (87–214 mi, 76–186 nmi)
• Service ceiling: 6,065 m (19,898 ft)
  
• Hover ceiling IGE: 2,650 m (8,694 ft)
• Rate of climb: 4.6 m/s (910 ft/min)

Related development

• Aerotécnica AC-14

Related lists

• List of rotorcraft

Wikimedia Commons has media related toNord Aviation aircraft.

• Apostolo, Giorgio (1984).The Illustrated Encyclopedia Of Helicopters. New York: Bonanza Books.ISBN 978-0517439357.

• 1950s French helicopters
• 1950s French experimental aircraft
• Nord aircraft
• Single-turbine helicopters
• Aircraft first flown in 1954

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