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Bae 146




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BAe 146-300]]
The BAe 146 (also known as the '''Avro RJ''') is a medium-sized commercial aircraft which was manufactured by BAE Systems until 2002. It carries its four Jet Engine s on a high wing which is above the fuselage (not below, or at mid-fuselage, as on most conventional civilian aircraft). The aircraft has STOL capabilities and very quiet operation; it has been marketed under the name '''Whisperjet'''., It sees wide usage at small city-based Airport s. In its primary role it serves as a regional jet, short-haul Airliner or Feederliner . The freight-carrying version has the designation ' QT ' ("quiet trader").

The BAe 146 comes in -100, -200 and -300 models. The -300 model includes a Glass Cockpit and sees wide use among Europe an airlines, such as Lufthansa and Aegean Airlines .

The only commercial jet with 4 Turbofan Jet Engines on a Wing that is mounted on top of the Fuselage , the BAe 146 also has a T-tail . Having extremely large Flap s and Spoiler s, and a large split Air Brake mounted in the tail, the plane does not need Reverse Thrust at Landing . Consequently, the four engines (supplied by the U.S. manufacturer Lycoming ) do not have this facility. The plane can take off and land on extremely short Runway s, such as those at Mönchengladbach , Aspen , and at London City Airport , a converted dock.


HISTORY

Hawker Siddeley Aviation carried out the original design in 1973 using the designation HS146, but soon abandoned the project as a result of the world economic downturn resulting from the Oil Crisis . Low-key development proceeded, however, and in 1978 British Aerospace , Hawker Siddeley's corporate successor, re-launched the project.

Production began in 1983 with the series 100, carrying 70 - 84 passengers, and ended during the 2001 world slump in the aviation market.

The early aircraft were built at what was the original De Havilland factory at Hatfield, Hertfordshire .

The type name "Avro RJ" superseded "BAe 146" in engines from Honeywell Inc., housed in newly designed nacelles, replaced the original Lycoming engines. Production of this aircraft has ended with the final four aircraft being delivered in October/November 2003. Many airlines will replace the Avro/BAe with the Boeing 717 , Airbus A318 , Bombardier CRJ 700 , or Embraer models such as the Embraer 170 and Embraer 190 .

The Avro RJ family of aircraft was built at the BAE Systems Regional Aircraft Centre at the historic Avro Airfield at Woodford in England . 166 Avro RJ aircraft were delivered between 1993 and 2002 .

The aircraft have proven to be very useful on "high" density regional and short-haul routes. One of the main features of the BAe 146 that made it different from other regional aeroplanes is the fact that it features a 6 abreast seating which proves to be more comfortable than the more traditional four abreast or five abreast seating of planes in its class. The plane is also renowned for its relatively low noise generation, a positive feature which won the hearts of many operators who wanted to fly in and out of noise stringent airports within cities.


Problems

  plane Or Copter plane
  jet Or Prop jet
  crew 2
  capacity 85-100 passengers
  length Main 93 ft 8 in
  length Alt 2855 m
  span Main 86 ft 5 in
  span Alt 2634 m
  height Main 28 ft 3 in
  height Alt 861 m
  area Main 832 ft&2
  area Alt 7730 m&2
  empty Weight Main 73,415 lb
  empty Weight Alt 33,300 kg
  max Takeoff Weight Main 93,035 lb
  max Takeoff Weight Alt 42,200 kg
  engine (jet) Honeywell ALF 502 R-5
  type Of Jet Turbofan s
  number Of Jets 4
  thrust Main 6,970 lbf
  thrust Alt 31 kN
  max Speed Main 555 mph
  max Speed Alt 893 km/h
  cruise Speed Main 465 mph
  cruise Speed Alt 750 km/h
  range Main 1,290 mi with 25,000 lb (11,300 kg) of payload
  range Alt 2,075 km
  ceiling Main 31,200 ft
  ceiling Alt 9,500 m
  loading Main lb/ft&2
  loading Alt kg/m&2