The AC-14 continued the Cantinieau practice of mounting the engine forward of the main rotor, and like the Norelfe, used the ducted exhaust from the turboshaft to counter the torque of the main rotor at low speeds, while at high speeds the exhaust gases were deflected rearwards to increase speed, torque being compensated for by movable twin tail fins.[1]
The first of prototype flew on 16 July 1957.[1] A pre-production order for ten machines was placed by the Spanish Air Force where they served for a short time under the designation EC-XZ-4. No full production ensued, as they were much more expensive than second-hand Bell 47G-2 and G-3s.
^ abcTaylor, John W. R. (1961). Jane's All The World's Aircraft 1961–62. London: Sampson Low, Marston & Company. p. 127.
Further reading
Wikimedia Commons has media related to Aerotécnica AC-14.
Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions.
Simpson, R. W. (1998). Airlife's Helicopters and Rotorcraft. Ramsbury: Airlife Publishing.
February 11, 2023
aerotécnica, spanish, five, seat, light, helicopter, 1950s, designed, jean, cantinieau, based, enlarging, nord, norelfe, design, 14role, light, utility, helicopternational, origin, spainmanufacturer, aerotécnicadesigner, jean, cantinieaufirst, flight, july, 19. The Aerotecnica AC 14 was a Spanish five seat light helicopter of the 1950s designed by Jean Cantinieau based on enlarging his Nord Norelfe design AC 14Role light utility helicopterNational origin SpainManufacturer AerotecnicaDesigner Jean CantinieauFirst flight 16 July 1957Number built 11The AC 14 continued the Cantinieau practice of mounting the engine forward of the main rotor and like the Norelfe used the ducted exhaust from the turboshaft to counter the torque of the main rotor at low speeds while at high speeds the exhaust gases were deflected rearwards to increase speed torque being compensated for by movable twin tail fins 1 The first of prototype flew on 16 July 1957 1 A pre production order for ten machines was placed by the Spanish Air Force where they served for a short time under the designation EC XZ 4 No full production ensued as they were much more expensive than second hand Bell 47G 2 and G 3s Contents 1 Operators 2 Specifications 3 See also 4 References 5 Further readingOperators Edit Spain Spanish Air Force Ten pre production aircraft only Specifications Edit Aerotecnica AC 14 outline Data from Janes All The World s Aircraft 1961 62 1 General characteristicsCrew 1 Capacity 4 passengers Length 8 13 m 26 ft 8 in Height 3 10 m 10 ft 2 in Empty weight 650 kg 1 433 lb Gross weight 1 250 kg 2 756 lb Max takeoff weight 1 350 kg 2 976 lb Powerplant 1 Turbomeca Artouste IIB turboshaft engine 300 kW 400 hp Main rotor diameter 9 65 m 31 ft 8 in Main rotor area 72 35 m2 778 8 sq ft Performance Maximum speed 180 km h 110 mph 97 kn Cruise speed 150 km h 93 mph 81 kn Range 300 km 190 mi 160 nmi Ferry range 640 km 400 mi 350 nmi with auxiliary tanks Service ceiling 6 800 m 22 300 ft Rate of climb 4 62 m s 909 ft min Aerotecnica AC 14 Aerotecnica AC 14 Ducted exhaust and rudders detail Aerotecnica AC 14 Cockpit detail Aerotecnica AC 14 Seats detail Aerotecnica AC 14 Rotor and top detailSee also EditAerotecnicaRelated development AC 11 AC 12 AC 13Aircraft of comparable role configuration and era Nord NorelfeReferences Edit a b c Taylor John W R 1961 Jane s All The World s Aircraft 1961 62 London Sampson Low Marston amp Company p 127 Further reading Edit Wikimedia Commons has media related to Aerotecnica AC 14 Taylor Michael J H 1989 Jane s Encyclopedia of Aviation London Studio Editions Simpson R W 1998 Airlife s Helicopters and Rotorcraft Ramsbury Airlife Publishing Retrieved from https en wikipedia org w index php title Aerotecnica AC 14 amp oldid 1039810692, wikipedia, wiki, book, books, library,
