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Bae 125




The twin-engined BAe 125 is the world's best selling mid-size corporate jet, now marketed as the Raytheon Hawker 800 . It has also served as a military navigation trainer under the names '''Dominie''' and '''C-29'''.


DEVELOPMENT

In 1961 , De Havilland began working on a revolutionary small business jet known as DH.125 Jet Dragon. The first of two prototypes flew on 13 August 1962 with Rolls-Royce Viper 20 engines producing 2,990 lbf (13.3 kN) of thrust each. The first production aircraft had a 3 ft (0.9 m) greater wingspan and 3 ft 11 in (1.2 m) longer fuselage as well as Viper 520 engines.

The aircraft went through many designation changes during its service life. Originally DH.125, it was renamed to HS.125 when de Havilland became a part of the Hawker-Siddeley group. When Hawker-Siddeley itself merged into British Aerospace in 1977 , the name was changed to '''BAe 125'''. Then, when British Aerospace sold its Business Jets Division to Raytheon in 1993 , the jet acquired its current monicker '''Raytheon Hawker'''. In 1996 , production was transferred to United States.

Over 1,000 aircraft have been built.


VARIANTS

  • DH.125 Series 1 - first production version, 8 built

  • DH.125 Series 1A/1B - upgraded Viper 521 (Series 1A) or 522 (Series 1B) engines with 3,090 lbf (13.8 kN) of thrust each

  • HS.125 Series 2 - military versions

  • --- T.Mk.1, T.Mk.2 (Dominie) - navigation trainer for Royal Air Force

  • --- CC.Mk.1, '''Mk.2''', and '''Mk.3''' - liaison aircraft for Royal Air Force

  • HS.125 Series 3 - upgraded engines

  • HS.125 Series 400 - upgraded engines

  • HS.125 Series 600 - 3 ft 1 in (0.94 m) fuselage stretch to increase capacity to 14 passengers

  • HS.125 Series 700 - Honeywell TFE731 -3RH Turbofan engines with 3,720 lbf (16.6 kN) of thrust each, first flight 19 June 1976

  • HS.125 Protector - Series 700-based maritime patrol aircraft with a search radar and cameras

  • BAe.125 Series 800 - increased wingspan, streamlined nose, tail fin extension, increased fuel capacity, first corporate jet to feature an EFIS cockpit, upgraded engines, first flight 26 May 1983

  • Hawker 800 - BAe.125-800 after 1993

  • Hawker 800XP - TFE731-5BR1H turbofan engines with 4,660 lbf (20.8 kN) of thrust each

  • C-29A - Series 800 for US military designed to replace Lockheed C-140 A, used by the Air Force Communications Service to check navigation aids and communications at US airbases around the world, participated in Operation Desert Shield and Operation Desert Storm during the First Persian Gulf War .

  • U-125 - Series 800-based search and rescue aircraft for Japan

  • BAe.125 Series 1000 - intercontinental version of the Series 800, 2 ft 9 in (0.84 m) fuselage stretch to increase capacity to 15, increased fuel capacity, Pratt & Whitney Canada PW-305 turbofans with 5,200 lbf (23.2 kN) thrust each, first flight 16 June 1990 , 52 built

  • Hawker 1000 - BAe.125-1000 after 1993



OPERATORS

Private operators worldwide, armed forces of Great Britain, Ireland, United States, Japan, Argentine, Botsawana, Brazil, Malawi, Malaysia, Saudi Arabia, South Africa.


SPECIFICATIONS (DOMINIE T.MK.1)

  jet Or Prop jet
  plane Or Copter plane
  crew 2
  capacity 8
  length Main 47 ft 5 in
  length Alt 1445 m
  span Main 47 ft 4 in
  span Alt 1443 m
  height Main 16 ft 6 in
  height Alt 503 m
  area Main 3529 ft&sup2
  area Alt 328 m&sup2
  empty Weight Main 14,687 lb
  empty Weight Alt 6,662 kg
  max Takeoff Weight Main 27,344 lb
  max Takeoff Weight Alt 12,403 kg
  engine (jet) Rolls-Royce Viper 521 Mk301
  type Of Jet Turbojet s
  number Of Jets 2
  thrust Main 3,090 lbf
  thrust Alt 138 kN
  max Speed Main 500 mph
  max Speed Alt 805 km/h
  cruise Speed Main 470 mph
  cruise Speed Alt 760 km/h
  range Main 1,550 mi
  range Alt 2,500 km
  ceiling Main 40,000 ft
  ceiling Alt 12,200 m
  loading Main lb/ft&sup2
  loading Alt kg/m&sup2




SPECIFICATIONS (HAWKER 850XP)

  jet Or Prop jet
  plane Or Copter plane
  crew 2
  capacity 8
  length Main 51 ft 2 in
  length Alt 156 m
  span Main 54 ft 4 in
  span Alt 166 m
  height Main 18 ft 1 in
  height Alt 55 m
  area Main ft&sup2
  area Alt m&sup2
  empty Weight Main 15,670 lb
  empty Weight Alt 7,110 kg
  loaded Weight Main lb
  loaded Weight Alt kg
  useful Load Main 11,790 lb
  useful Load Alt 5,350 kg
  max Takeoff Weight Main 28,000 lb
  max Takeoff Weight Alt 12,700 kg
  engine (jet) Honeywell TFE731 -5BR
  type Of Jet Turbofan s
  number Of Jets 2
  thrust Main 4,660 lbf
  thrust Alt 208 kN
  power Main hp
  power Alt kW
  max Speed Main 514 mph
  max Speed Alt 830 km/h
  cruise Speed Main 463 mph
  cruise Speed Alt 745 km/h
  range Main 2,522 mi
  range Alt 4,059 km
  ceiling Main 41,000 ft
  ceiling Alt 12,500 m
  climb Rate Main 1,950 ft/min
  climb Rate Alt 99 m/s
  loading Main lb/ft&sup2
  loading Alt kg/m&sup2




REFERENCES

  • Donald D., Lake J. (eds.) (1996) ''Encyclopedia of world military aircraft.'' AIRtime Publishing. ISBN 1880588242

  • Mason, FK (1991) ''Hawker aircraft since 1920.'' Putnam Aeronautical Books. ISBN 1557503516

  • Raytheon Aircraft Company



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