An FAA circular lists Tu-144S approach speed as 329В km/h (204В mph 178В kn), as opposed to Concorde's approach speed of 300В km/h (190В mph 160В kn), based on the characteristics declared by the manufacturers to Western regulatory bodies. The NASA study lists final approach speeds during Tu-144LL test flights as 315вЂ“335В km/h (196вЂ“208В mph 170вЂ“181В kn). The canards cancel out this nose-downwards moment, thus reducing the landing speed of the production Tu-144s to 315вЂ“333В km/h (196вЂ“207В mph 170вЂ“180В kn), still faster than that of Concorde. Moving the elevons downward in a delta-wing aircraft increases the lift, but also pitches its nose downward. These were fitted just behind the cockpit and increased lift at low speeds.ДЄeroflot Tu-144 at the Paris Air Show in 1975. They also added two small retractable surfaces called a moustache canard, with fixed double-slotted leading-edge slats and retractable double-slotted flaps. Production Tu-144s replaced this wing with a double delta wing including spanwise and chordwise camber. While both Concorde and the Tu-144 prototype had ogival delta wings, the Tu-144's wing lacked Concorde's conical camber. The Tu-144 prototype was a full-scale demonstrator aircraft with the very different production aircraft being developed in parallel. Tupolev also used fuel/hydraulic heat exchangers, but used cooling turbines for the cabin air. Concorde's designers used fuel as coolant for the cabin air conditioning and for the hydraulic system (see Concorde for details). Concorde used an electronic engine control package from Lucas, which Tupolev was not permitted to purchase for the Tu-144 as it could also be used on military aircraft. The Tu-144 is bigger and faster than the Concorde (M2.15 vs. The MiG-21I (1968 Izdeliye 21вЂ“11 'Analog') I = Imitator ('Simulator') was a testbed for the wing design of the Tu-144.Дespite the similarity in appearance of the Tu-144 to the Anglo-French supersonic aircraft (which earned it the nickname 'Concordski'), there were significant differences between two aircraft. The plan called for five flying prototypes to be built in four years, with the first aircraft to be ready in 1966. The air ministry started development of the Tu-144 on 26 July 1963, 10 days after the design was approved by the Council of Ministers. The Soviet government published the concept of the Tu-144 in an article in the January 1962 issue of the magazine Technology of Air Transport. View of the front of the Tu-144, with the distinctive retractable moustache canards deployed and drooped nose The Tu-144 made its final flight on 26 June 1999 and surviving aircraft were put on display across the world or into storage. The Tu-144 was later used by the Soviet space program to train pilots of the Buran spacecraft, and by NASA for supersonic research until 1999. The Tu-144 remained in commercial service as a cargo aircraft until cancellation of the Tu-144 program in 1983. The Tu-144 was introduced into passenger service with Aeroflot between Moscow and Almaty on 26 December 1975, but withdrawn less than three years later after a second Tu-144 crashed on 1 June 1978. Reliability and developmental issues, together with repercussions of the 1973 Paris Air Show Tu-144 crash and rising fuel prices, restricted the viability of the Tu-144 for regular use.

The Tu-144 first went supersonic on 5 June 1969, four months before Concorde, and on became the world's first commercial transport to exceed Mach 2. The Tu-144 conducted 102 commercial flights, of which only 55 carried passengers, at an average service altitude of 16,000 metres (52,000В ft) and cruised at a speed of around 2,200 kilometres per hour (1,400В mph) ( Mach 2). The Tu-144 was a product of the Tupolev Design Bureau, an OKB headed by aeronautics pioneer Aleksey Tupolev, and 16 aircraft were manufactured by the Voronezh Aircraft Production Association in Voronezh. The Tu-144 was the world's first commercial supersonic transport aircraft with its prototype's maiden flight from Zhukovsky Airport on 31 December 1968, two months before the British-French Concorde.

The Tupolev Tu-144 ( Russian: TyРїРѕР»РµРІ РўСѓ-144 NATO reporting name: Charger) is a Soviet supersonic passenger airliner designed by Tupolev in operation from 1968 to 1999. Tu-144 prototype in flight on 1 February 1969

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