Aircraft BAC 1-11 (LHC 1-11).
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 the aircraft One-Eleven, began in the year 1956. It was based on the initial 32 development project of the Hunting H107 local passenger jet, which was developed by the British aviation engineering company Hunting Aircraft. Four years later, in 1960, Hunting Aircraft became part of the British Aircraft Corporation.

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

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

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 model range, in addition to the base model, with two more aircraft. They became the BAC 1-11 series 300 airliners (BAC 1-11 300s) with Spey Mk engines. 511 kN and BAC 51,71-1 series 11 (BAC 400-1 11s) with the same motors, but intended for export to the USA. These modifications had better loading capacity and increased range compared to the base model. These versions are capable of carrying 400 passengers a distance, on average, to 79 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, the local version of the aircraft designated as BAC 119-1 series 11 (BAC 500-1 11s) was introduced to the 500. This version has a larger wingspan, equal to 28,50 meters, an extended fuselage, reinforced chassis and more powerful Rolls-Royce RB.163 Spey Mk 512-14DW engines, with 55,8 kN. The range of this version is about 2740 kilometers. 30 June 1967, the BAC 1-11 500s, made its first flight.

BAC 1-11 salon

In 1970, a production version of the BAC 1-11 series 475 (BAC 1-11 475s) was launched for production in high altitude conditions. This aircraft has a fuselage from the aircraft BAC 1-11 400s, and wings and engines from the model BAC 1-11 500s. Version One-Eleven 475s, equipped with an improved chassis, which allows it to take off from unprepared airfields.

Versions of the BAC 1-11 aircraft were assembled not only in Britain, but also from 1982 to 1989 year and Romania. In total, the order 244 of the BAC 1-11 aircraft was built.

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 TRD Rolls-Royce RB.163 Spey Mk. 512-14DW

Crew: 2 people

Passenger capacity: 119 passenger seats

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