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Aircraft BAC 1-11 (LHC 1-11).
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Aircraft BAC 1-11 (LHC 1-11).

BAC 1-11 (LHC 1-11)

 

BAC 1-11 123Short-haul jet airliner BAC 1-11, having the name «One-Eleven», was created as a replacement passenger turboprop Vickers Viscount, British aircraft manufacturing company «British Aircraft Corporation». After the French aircraft Sud Aviation Caravelle, BAC One-Eleven was the second short-haul jet airliner, was put into operation. BAC 1-11 was one of the most successful British models of passenger aircraft and was widely used before the 90-ies.

Work on the design of aircraft One-Eleven, it began in the year 1956. It served as the basis for the original project to create 32 local passenger jet Hunting H107, which was developed by the British aviainzhenernoy «Hunting Aircraft». Four years later, in the year 1960, «Hunting Aircraft» became part of the «British Aircraft Corporation» aviation company.

In 1961, the aircraft project was designated BAC 111, then BAC 1-11 or One-Eleven. The base model of the aircraft was designated as BAC 1-11 series 200 (BAC 1-11 200s). This version had a length 28,50 meters in span in 26,97 meters and is located in its fuselage 79 seats, and with a maximum load was able to fly a distance of up to 1140 kilometers at an average speed in kilometers per hour 740.

The aircraft received a round fuselage with a low-spread wing-shaped wing, which is equipped with flaps and aerodynamic brakes. The tail has a "T" -shaped shape. The chassis of the aircraft consists of three racks, which are equipped with twin wheels and hydraulic stabilizers. In the tail part, the Spey Mk engines were placed on the first base model of the aircraft. 506 thrust 47,22 kN, produced by the company "Rolls-Royce". The first flight with these engines, the plane made 20 August 1963 year. During the repeated test flight 22 October 1963, BAC 1-11 series 200 crashed, due to a deep stall from the bearing surfaces. The crew of the plane, consisting of seven people was killed.

 

Bac 101 321

 

The cause of the tragedy was, the aircraft's exit to the supercritical angle of attack when climbing. In this case, the "T" -shaped tail unit was obscured by the bearing wing of the aircraft, and the horizontal rudders were not steerable, while the very wing of the aircraft quickly lost its lift and the aircraft went into stall. This incident, although it did not affect the number of orders, but pushed back the timing of commissioning the aircraft. In the control system of the airliner, a number of design changes were made, which did not allow the aircraft to enter the overcritical angles of attack, and the area of ​​the horizontal rudders was also increased.

In 1963, the company decided to expand the product range, in addition to the base model, two more aircraft. They were airliners BAC 1-11 series 300 (BAC 1-11 300s) motors Spey Mk. 511 51,71 have thrust kN and BAC 1-11 series 400 (BAC 1-11 400s), with the same engines, but intended for export to the USA. These modifications had better lift capacity and increased range compared to the base model. These versions are capable of carrying passengers on 79 distance, on average, up to 2250 kilometers.

April 9 1965, the aircraft company BAC 1-11 200s belonging to «British United Airways» made its first commercial flight on the route "Gatwick - Genoa".

A 16 April this year, the aircraft was given the American certificate of airworthiness.

In 1967 119 year was presented to the local version of the aircraft designated as BAC 1-11 series 500 (BAC 1-11 500s). This version has a larger wingspan equal to 28,50 meters, elongated fuselage, reinforced chassis and more powerful engines Rolls-Royce RB.163 Spey Mk 512-14DW, with traction 55,8 kN. Flight range of this version is about 2740 km. June 30 1967, the BAC 1-11 500s, made its first flight.

 

BAC 1-11 salon

 

In 1970 year production was launched version BAC 1-11 series 475 (BAC 1-11 475s), designed to operate at high altitudes. The aircraft has a fuselage of the aircraft BAC 1-11 400s, and the wings and engines from model BAC 1-11 500s. Version One-Eleven 475s, equipped with advanced chassis that allows it to take off from unprepared airfields.

Versions aircraft BAC 1-11 gathered not only in Britain but also on 1982 1989 year and Romania. There were built about 244 aircraft BAC 1-11.

To date, the aircraft is not made, but is used by some air carriers of the Asian and African camp short in routing. In Europe, aircraft decommissioning 1998 year due to tighter regulations on noise levels.

 

Technical characteristics of the aircraft BAC 1-11-500

 

The first flight of BAC 1-11: 20 1963 years in August

Production Years: c 1963 1989 year on year

Length: 32,61 m.

Height: 7,47 m.

Empty weight: 23464 kg.

Wing area: 95,78 sq.m.

Wingspan: 28,50 m.

Cruising speed: 742 km / h..

Maximum speed: 871 km / h..

Stall speed:. 192 km / h

Ceiling: 11000 m.

Practical range: 2740 km.

Length of takeoff: 2000 m.

path length: 1400 m.

Engines: 2 turbofan Rolls-Royce RB.163 Spey Mk. 512-14DW

Crew: 2 people

Number of seats: 119 seats

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