FMA IA 50 Guaraní II
|IA 50 Guarani II|
|Manufacturer||Fabrica Militar de Aviones (FMA)|
|First flight||26 April 1963|
|Retired||7 January 2007|
|Primary user||Fuerza Aérea Argentina|
|Number built||3 prototypes + 32 series aircraft|
|Developed from||IAe 35 Huanquero|
Design and development
In the early 1960s, the Argentine state aviation conglomerate, DINFIA, realised that its IA 35 Huanquero twin-piston engined light transport was becoming outdated, and it was decided to develop a turboprop-engined derivative. While of similar layout to the Huanquero, with both aircraft being twin-engined low-wing monoplane of all metal construction with a twin tail, the new aircraft, the Guaraní, shared only 20% of the structure of the Huanquero. It was powered by two Turbomeca Bastan III engines each rated at 850 shaft horsepower (630 kW). It first flew on 6 February 1962.
The aircraft was further developed as the Guaruani II; the main difference being a single swept fin and a shortened rear fuselage. It also used more powerful (930 shaft horsepower (690 kW)) Bastan VIA engines. The fuselage was semi-monocoque with a squared cross-section, having unswept wings and swept tailplanes. The prototype Guaraní was rebuilt to this standard and flew in this form on 26 April 1963.
In June 1965 the Guarani II prototype (serial number TX-01) was exhibited and flown at the Paris Air Show at Le Bourget Airport, France). TX-01 was later flown to the CEV (“Centre d’Essays en Vol”, Air Test Centre) at Istres, France, for technical evaluation, where it was tested for a total of 200 flying hours. It was flown back to the FMA, Argentina in February 1966, being the first Latin American-built aircraft to fly across the Atlantic Ocean.
The last flying example, retired in 2006 at the II Brigada Aérea (IInd Air Brigade), at Paraná, Entre Rios, Argentina, is currently preserved at the National Aeronautics Museum ("Museo Nacional de Aeronáutica") of the Argentine Air Force (Fuerza Aérea Argentina), at Morón, Buenos Aires, Argentina.
- Argentine Air Force
- Argentine Federal Police
- Argentine Navy
- Servicio Penitenciario Federal
- Líneas Aéreas Provinciales de Entre Ríos
- Government of Córdoba
- Government of Salta
- Ministry of National Welfare
- Last operational G-II, retired in 2006, at the Museo Nacional de Aeronáutica de Argentina ("National Aeronautics Museum")
Specifications (IA 50)
Data from Jane's All The World's Aircraft 1965-66 
- Crew: 2
- Capacity: 15 passengers
- Payload: 1,810 kg (2,600 lb)
- Length: 14.86 m (48 ft 9 in)
- Wingspan: 19.53 m (64 ft 1 in)
- Height: 5.81 m (19 ft 0¾ in)
- Wing area: 41.81 m² (450 ft²)
- Airfoil: NACA 633218
- Aspect ratio: 9
- Empty weight: 3,924 kg (8,650 lb)
- Max. takeoff weight: 7,120 kg (15,700 lb)
- Powerplant: 2 × Turbomeca Bastan VI-A Turboprop, 694 kW (930 shp) each
- Never exceed speed: 515 km/h (278 knots, 320 mph)
- Maximum speed: 500 km/h (270 knots, 311 mph)
- Cruise speed: 450 km/h (243 knots, 280 mph) (econ. cruise)
- Stall speed: 145 km/h (78 knots, 90 mph)
- Range: 1,995 km (1,078 nmi, 1,240 mi)
- Service ceiling: 12,500 m (41,010 ft)
- Rate of climb: 13.4 m/s (2,640 ft/min)
- Magnusson 2010, p. 5.
- Taylor 1962, pp. 4–5.
- Taylor 1965, p.3.
- Magnusson 2010, p. 6.
- Taylor 1965, pp. 3–4.
- Article on the 50th anniversary of the "Fabrica Militar de Aviones" - listing all the aircraft developed and manufactured there since 1927, Aerospacio, Buenos Aires, 1977. (in Spanish)
- Magnusson, Michael (March 2010). "FMA: from 1945: The story of Fabrica Militar de Aviones, Argentina: Part 10: The IA-50 Guarani". Air Britain Archive: 5–12. ISSN 0262-4923.
- Taylor, John W. R. (1962). Jane's All The World's Aircraft 1962-63. London: Samson Low, Marston.
- Taylor, John W. R. (1965). Jane's All The World's Aircraft 1965-66. London: Samson Low, Marston.
- The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985). Orbis Publishing.
- "La historia del IA-50 G-II Guaraní". www.gacetaeronautica.com (in Spanish). Gaceta Aeronautica. 20 October 2014. Retrieved 9 July 2018.
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