Embraer EMB 121 Xingu

EMB 121 Xingu
	File:File:Xingu.jpg
	French Air Force Xingu
Role	Utility aircraft
National origin	Brazil
Manufacturer	Embraer
First flight	10 October 1976
Introduction	20 May 1977
Status	Active
Primary users	French Air Force; Brazilian Air Force
Produced	1977-1987
Number built	106
Developed from	EMB 110 Bandeirante

The Embraer EMB 121 Xingu (pronounced "shingoo") is a twin-turboprop fixed-wing aircraft built by the Brazilian aircraft manufacturer, Embraer. The design is based on the EMB 110 Bandeirante, using its wing and engine design merged with an all-new fuselage. The EMB 121 first flew on 10 October 1976.^[1]

A modified form of the EMB 121, the EMB 121A1 Xingu II, was introduced on 4 September 1981 with a more powerful engine (PT6A-135), increased seating (8 or 9 passengers) and a larger fuel capacity.

Before production ceased in August 1987, Embraer had produced 106 EMB 121 aircraft, 51 of which were exported to countries outside Brazil. Currently, the French Air Force is the largest operator with 23 aircraft still in service.

Variants[]

EMB 121A Xingu I: Pratt & Whitney Canada PT6A-28
EMB 121A1 Xingu II: Pratt & Whitney Canada PT6A-135
EMB 121B Xingu III: Projected stretched development, not proceeded with,^[2] to have been powered by Pratt & Whitney Canada PT6A-42 engines.
EMB 123 Tapajós: planned version with Pratt & Whitney Canada PT6A-45
VU-9: Brazilian Air Force designation

Military operators[]

Brazil

Brazilian Air Force

France

Specifications (EMB 121A1 Xingu II)[]

Data from Jane's All the World's Aircraft 1984-85^[2]

General characteristics

Crew: 1/2
Capacity: 9 or 770 kg (1,700 lb) with 1 pilot
Length: 12.25 m (40 ft 2 in)
Wingspan: 14.05 m (46 ft 1 in)
Height: 4.84 m (15 ft 11 in)
Wing area: 27.5 m² (296 sq ft)
Aspect ratio: 7.18
Empty weight: 3,710 kg (8,179 lb) equipped
Max takeoff weight: 5,670 kg (12,500 lb)
Fuel capacity: 1,308 kg (2,884 lb)
Powerplant: 2 × Pratt & Whitney Canada PT6A-135 turboprop engines, 559 kW (750 hp) each
Propellers: 4-bladed Hartzell HC-B4TN-3C/T9212B, 2.36 m (7 ft 9 in) diameter constant-speed metal propeller with auto-feathering and full reverse-pitch

Performance

Maximum speed: 467 km/h; 290 mph (252 kn)
Cruise speed: 380 km/h; 236 mph (205 kn) at 3,050 m (10,010 ft)
Stall speed: 141 km/h; 87 mph (76 kn) power off, flaps down
Range: 1,230 km (764 mi; 664 nmi) at 6,100 m (20,000 ft) maximum fuel with 45 minutes reserve
Service ceiling: 8,535 m (28,002 ft)
Rate of climb: 9.1333 m/s (1,797.89 ft/min)
Wing loading: 206.2 kg/m² (42.2 lb/sq ft)
Fuel consumption: 0.52 kg/km (1.86 lb/mi) : 250 lb (110 kg)/h per engine at 234 kn (433 km/h) TAS, FL200, -4°C^[3]
Power/mass: 0.197 kW/kg (0.12 shp/lb)

References[]

Notes[]

↑ Michell 1994, p.9
↑ ^2.0 ^2.1 Taylor, John W. R. (1985). Jane's All the World's Aircraft 1984-85. London: Jane's Publishing Company. ISBN 0-7106-0801-2.
↑ Hugh Field (13 May 1978). "Xingu in the air". https://www.flightglobal.com/pdfarchive/view/1978/1978%20-%200791.html.

Bibliography[]

EMB-121 information at Airliners.net
Endres, Gunter and Gething, Mike. (2002). Aircraft Recognition Guide, (2nd Ed.). New York City: Harper Collins Publishers. ISBN 0-00-713721-4.
Michell, Simon (editor). Jane's Civil and Military Aircraft Updates 1994-95. Coulsdon, Surrey, UK:Jane's Information Group, 1994. ISBN 0-7106-1208-7.

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The original article can be found at Embraer EMB 121 Xingu and the edit history here.

[Janes_upgrades_p9-1] Michell 1994, p.9

[JAWA_84-5-2] 2.0 ^2.1 Taylor, John W. R. (1985). Jane's All the World's Aircraft 1984-85. London: Jane's Publishing Company. ISBN 0-7106-0801-2.

[3] Hugh Field (13 May 1978). "Xingu in the air". https://www.flightglobal.com/pdfarchive/view/1978/1978%20-%200791.html.

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