British Aerospace BAe 125


British Aerospace BAe 125

Infobox Aircraft
name= BAe 125/Dominie Hawker 1000


caption= A Dominie navigation trainer of the Royal Air Force
type=Mid-size business jet
manufacturer= de Havilland (design) Hawker Siddeley (to 1977) British Aerospace (1977-1993) Raytheon (1993- 2007)
Hawker Beechcraft (Since 2007)
first flight= 13 August 1962
introduced=
retired=
status=
primary user = Royal Air Force
more users = South African Air Force United States Air Force
produced=
number built= 1,000+
unit cost=
developed from =
variants with their own articles = Hawker 800

The twin-engined British Aerospace BAe 125 is the world's best selling mid-size corporate jet, with newer variants now marketed as the Hawker 800. It was known as the Hawker Siddeley HS.125 until 1977. It is also used by the British Royal Air Force as a navigation trainer (as the Hawker Siddeley Dominie T Mk. 1), and was used by the United States Air Force as a calibration aircraft (as the 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 powered by the Bristol Siddeley Viper turbojet

The aircraft went through many designation changes during its service life. Originally DH.125, it was renamed the HS.125 after de Havilland became a division of Hawker Siddeley in 1963. When Hawker Siddeley Aircraft merged with the British Aircraft Corporation to form British Aerospace in 1977, the name changed to BAe 125. Then, when British Aerospace sold its Business Jets Division to Raytheon in 1993, the jet acquired the name Raytheon Hawker. The fuselage, wings and tail-fin are to this day fully assembled and partially equipped (primary and secondary flight controls) in Airbus UK's Broughton plant in Wales, sub-assemblies are produced in Airbus UK's Buckley (Bwcle in Welsh) site. All these assembled components are then shipped to Wichita, Kansas in the United States, to where final assembly was transferred in 1996.

Over 1,000 aircraft have been built.

Variants

* DH.125 Series 1 - first production version, 8 built
* DH.125 Series 1A/1B - upgraded Bristol Siddeley Viper 521 (Series 1A) or 522 (Series 1B) engines with 3,090 lbf (13.8 kN) of thrust each
* HS.125 Series 2 - navigation trainer for Royal Air Force, known in service as the Dominie T.Mk.1 - (Rolls Royce Viper 301)
* HS.125 Series 3 - upgraded engines
* HS.125 Series 400 - upgraded engines
** HS.125 CC.Mk.1 - Series 400 liaison aircraft for Royal Air Force
* HS.125 Series 600 - 3 ft 1 in (0.94 m) fuselage stretch to increase capacity to 14 passengers
** HS.125 CC.Mk.2 - Series 600 liaison aircraft for Royal Air Force
* HS.125 Series 700 - Honeywell TFE731-3RH turbofan engines with 3,720 lbf (16.6 kN) of thrust each, first flight 19 June 1976
** BAe 125 CC.Mk.3 - Series 700 liaison aircraft for Royal Air Force
* 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
* Hawker 800SP and 800XP2 - New designation for 800A/B and 800XP aircraft when upgraded with aftermarket winglets
* Hawker 850XP - 800XP with factory installed winglets and interior updates
* Hawker 900XP - 850XP with Honeywell TFE731-50R turbofan engines for increased hot/high performance and longer range
* Hawker 750 - 800XP with a light-weight interior and heated baggage compartment in place of the ventral fuel tank
* C-29A - Series 800 for US military designed to replace the Lockheed C-140A, 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 flight inspection aircraft for Japan (similar to C-29A)
* U-125A - 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
* Handley Page HP.130 - A 1965 proposal with boundary layer control wings (not built). It was to be powered by two Bristol Siddeley Viper 520s of 3,000 lb thrust with a projected Maximum speed of Mach 0.8. This conversion was for laminar-flow research purposes.

Operators

Civil operators

Private operators worldwide.;AUS
*Qantas - Two HS.125 Series 3s were used for crew training. The aircraft were in service from 1965 to 1972.;UAE:
*Hamra Air

Military operators

;ARG;flag|Biafra
*Biafran Air Force operated one aircraft.;BRA
*Brazilian Air Force;BOT;IRL;JPN;MWI;MYS;SAU;flag|South Africa|1928
*South African Air Force
**No. 21 Squadron SAAF;UK
*Royal Air Force
**No. 32 Squadron RAF;USA
* United States Air Force

pecifications (Hawker 850XP)

aircraft specifications
jet or prop?=jet
plane or copter?=plane

crew=2
capacity=8
length main=51 ft 2 in
length alt=15.6 m
span main=54 ft 4 in
span alt=16.6 m
height main=18 ft 1 in
height alt=5.5 m
area main= ft²
area alt= m²
empty weight main=15,670 lb
empty weight alt=7,110 kg
loaded weight main=
loaded weight alt=
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= turbofans
number of jets=2
thrust main=4,660 lbf
thrust alt=20.8 kN
max speed main=514 mph
max speed alt=446 kn, 830 km/h
cruise speed main=463 mph
cruise speed alt=402 kn, 745 km/h
range main=2,522 mi
range alt=2,191 NM, 4,059 km
ceiling main=41,000 ft
ceiling alt=12,500 m
climb rate main=1,950 ft/min
climb rate alt=9.9 m/s
loading main=
loading alt=
thrust/weight=

ee also

aircontent
related=
* Hawker 800
* Hawker 4000
similar aircraft=
* Bombardier Challenger 600
* Cessna Citation
* Dassault Falcon
* Learjet 25
lists=
* List of active United Kingdom military aircraft
* List of aircraft of the RAF
* List of military aircraft of the United States
see also=

References

*
*

External links

* [http://www.hawkerbeechcraft.com]
* [http://www.airliners.net/search/photo.search?distict_entry=true&aircraft_genericsearch=British%20Aerospace%20BAe-125/HS-125%20(C-29) Photos of this aircraft on Airliners.net]
* [http://midlandairmuseum.co.uk/ Midland Air Museum. Home to the second prototype]
* [http://www.dehavillandmuseum.co.uk/ de Havilland Aircraft Heritage Centre. Home to the remains of the original prototype, G-AYRA, and third prototype, G-AYRC]


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