Embraer EMB 121 Xingu

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]

EMB 121 Xingu
Xingu.jpg
French Air and Space 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 and Space Force
Brazilian Air Force
Produced 1977-1987
Number built 106
Developed from EMB 110 Bandeirante

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 and Space Force is the largest operator with 23 aircraft still in service.

VariantsEdit

 
Cabin
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 operatorsEdit

 
A Private Xingu
  Brazil
  France

Specifications (EMB 121A1 Xingu II)Edit

 
Cockpit

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 (760 mi, 660 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)

See alsoEdit

Related development

Aircraft of comparable role, configuration, and era

ReferencesEdit

NotesEdit

  1. ^ Michell 1994, p.9
  2. ^ a b 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". Flight International. Archived from the original on 12 September 2009. Retrieved 16 December 2018.

BibliographyEdit

External linksEdit

  Media related to Embraer EMB 121 Xingu at Wikimedia Commons