BAC 1-11 (LHC 1-11)
Short-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 fuselage was circular cross section with a low wing swept shape, which is equipped with flaps and air brakes. The tail unit has a "T" -shaped. aircraft chassis consists of three pillars, which are equipped with dual wheels and hydraulic stabilizers. The tail section on first base model airplane engines Spey Mk been posted. 506 47,22 kN thrust, manufactured by «Rolls-Royce». The first flight with these engines, the aircraft made in August 20 1963 years. During the re-test flight in October 22 1963 years, BAC 1-11 series 200 crashed because of a deep stall with bearing surfaces. The crew, consisting of seven people died.
The cause of the tragedy became, aircraft access to the supercritical angle of attack while climbing. In this case, "T" -shaped tail unit was obscured by the carrier aircraft wing, and horizontal rudders were not controlled, and the wing of the aircraft itself quickly lost lift and the plane went into a stall. This incident, though, and did not affect the number of orders, but I pushed the timeline aircraft in operation. The aircraft control system was introduced a number of design changes, which did not allow the plane to go supercritical angles of attack, and the area was enlarged horizontal rudders.
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.
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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