Hawker Siddeley HS-125 Dominie

Hawker Siddeley HS-125 Dominie
Land	Storbritannien
Typ	Mid-size business jet
Första flygningen	13 August 1962
Nummer byggt	1720

Den British Aerospace 125 is a twinjet mid-size business jet. Originally developed by de Havilland and initially designated as the DH.125 Jet Dragon, it entered production as the Hawker Siddeley HS.125, which was the designation used until 1977. Later on, more recent variants of the type were marketed as the Hawker 800.

Källkod: Hawker Siddeley HS-125 Dominie on Wiki

Hawker Siddeley HS-125 Dominie (BAe 125) Walk Around
Fotograf	Meindert de Vreeze
Lokalisering	Unknow
Bilder	29

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A Legacy of Longevity and Evolution

The HS.125 (originally the de Havilland DH.125 Jet Dragon) is one of the world’s most successful first-generation business jets. Designed to replace the piston-engined de Havilland Dove, it first flew in 1962 and remained in production through various mergers—eventually becoming the BAe 125 and the Hawker 800/1000 series—for a staggering 50 years. Its success was built on a “utility-first” philosophy: it offered a spacious, stand-up cabin and rugged short-field performance that made it equally popular with corporate CEOs and global air forces.

Attribute	Standard Specification (HS.125 Series 400/600)
Roll	Business Jet / Military Trainer & Liaison
besättning	2 (Pilot and Co-pilot)
Capacity	8 to 14 Passengers (depending on variant)
Kraftverk	2 x Rolls-Royce Viper turbojets (Series 1-600)
Max Speed	840 km/h (approx. 522 mph)
Sortiment	approx. 2,900 km (1,560 nmi)
längd	14.42 m to 15.39 m (Series dependent)
Service Ceiling	12,500 m (41,000 ft)

Design Highlights

Rugged Aerodynamics: The slightly swept wing was inspired by the de Havilland Comet and featured large slotted flaps. This allowed the HS.125 to operate safely from small, poorly prepared airfields or even hardened grass strips.
The “Stand-Up” Cabin: Unlike many early competitors, the 125 featured a cylindrical fuselage with an unobstructed floor and 5ft 9in of headroom, allowing passengers to move about the cabin with ease.
Viper Power: Early models used the Bristol Siddeley (later Rolls-Royce) Viper turbojet—a simple, noisy, but incredibly reliable engine originally developed for the Jindivik target drone.
Continuous Improvement: The aircraft transitioned from “pure” turbojets to more fuel-efficient Garrett TFE731 turbofans starting with the Series 700, which significantly boosted range and quieted the cabin.

The Military “Dominie” T.1

The HS.125 was not just for executives. The Royal Air Force recognized its potential early on, ordering the Series 2 variant as a dedicated navigation trainer.

Navigation Classroom: Renamed the Dominie T.1, the cabin was modified with multiple student consoles. It trained generations of navigators and weapon systems officers destined for the Vulcan, Nimrod, and Tornado.
V-Force Heritage: In early models, students sat rear-facing to simulate the seating arrangement of the RAF’s “V-Bomber” fleet.
Enduring Service: The Dominie T.1 served the RAF for over 45 years, finally retiring in 2011 after a stellar career as a reliable training workhorse.

Global Impact

US Popularity: Despite being a British design, over 60% of all HS.125 sales were in North America, where it was often marketed as the “Beechcraft Hawker.”
Special Missions: Beyond training, variants like the U-125A (Japan) and C-29A (USA) were used for Search and Rescue and flight inspection of military navigation aids.