lotnictwo: De Havilland Comet

Evidence: 67 • authority: 72

The Hawker Siddeley Nimrod is a retired maritime patrol aircraft developed and operated by the United Kingdom. It was an extensive modification of the de Havilland Comet, the world's first operational jet airliner. It was originally designed by de Havilland's successor firm, Hawker Siddeley; further development and maintenance work was undertaken by Hawker Siddeley's own successor companies, British Aerospace and, later, BAE Systems. Designed in response to a requirement issued by the Royal Air Force (RAF) to replace its fleet of ageing Avro Shackletons, the Nimrod MR1/MR2s were fixed-wing aerial platforms tasked primarily with anti-submarine warfare (ASW) operations; secondary roles includ…

Evidence: 45 • authority: 72

The BAE Systems Nimrod MRA4 was a planned maritime patrol and attack aircraft intended to replace the Hawker Siddeley Nimrod MR2. The rebuilt aircraft would have extended the operating life of the Nimrod fleet by several decades and significantly improved the aircraft by installing more efficient Rolls-Royce BR700 turbofan jet engines to almost double the flight range. The conversion of the flight deck to a digital glass cockpit would have simplified control operations and reduced crew requirements. New detection systems were to be installed, as well as additional weapons for anti-submarine warfare. However, the project was subject to significant delays due to cost overruns and contract re-…

Evidence: 45 • authority: 72

The Hawker Siddeley Nimrod R1 is a signals intelligence (reconnaissance) aircraft formerly operated by the Royal Air Force. The aircraft was a conversion of the existing Nimrod maritime patrol aircraft, with all of the previous avionics and armament (optimised for anti-submarine warfare, anti-ship warfare, and search and rescue) replaced by equipment for gathering communications and electronic intelligence.

Evidence: 40 • authority: 72

The Hawker Siddeley HS-121 Trident (originally the de Havilland DH.121 and briefly the Airco DH.121) is a British airliner produced by Hawker Siddeley. In 1957, de Havilland proposed its DH.121 trijet design to a British European Airways (BEA) request. By 1960, de Havilland had been acquired by Hawker Siddeley. The Trident's maiden flight happened on 9 January 1962, and it was introduced on 1 April 1964, two months after its main competitor, the Boeing 727. By the end of the programme in 1978, 117 Tridents had been produced. The Trident was withdrawn from service in 1995. The jetliner is powered by three rear-mounted Rolls-Royce Spey low-bypass turbofans. It has a low swept wing and a T-tai…

Evidence: 34 • authority: 88

Hawker Siddeley Nimrod MR. Mk. I. THE Nimrod programme was initiated in the gloomy days of early 1965 when project after project had come to grief on the rocks of financial excess and governmental displeasure. Cost was the foremost parameter in the official mind with the result that the HS.681, the P.1154 and the TSR‐2 had all been cancelled. Better by far, went the argument, to buy existing aircraft off‐the‐shelf from foreign sources than to build one's own and sell them to others after satisfying one's own needs. The outlook for the aircraft industry was grim indeed at that time although it had lived with the periodic waxing and waning of its fortunes throughout its history. This was the…

Evidence: 34 • authority: 72

The British Aerospace Nimrod AEW3 was a proposed airborne early warning (AEW) aircraft which was to provide airborne radar cover for the air defence of the United Kingdom by the Royal Air Force (RAF). The project was designed to use the existing Nimrod airframe, in use with the RAF as a maritime patrol aircraft, combined with a new radar system and avionics package developed by Marconi Avionics. The Nimrod AEW project proved to be hugely complex and expensive as a result of the difficulties of producing new radar and computer systems and integrating them successfully into the Nimrod airframe. The project was eventually cancelled, with the RAF instead purchasing new build Boeing E-3 Sentry a…

Evidence: — • authority: 54