Tupolev 144D Low-poly 3D model

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The Tupolev Tu-144 is a supersonic airliner quadrifighter developed in the USSR by the Tupolev design bureau. Alongside the Franco-British Concorde, they are the only supersonic civilian aircraft to have reached mass production. Originally designed for use on Aeroflot's flight lines, this craft can carry from 98 to 120 passengers at speeds over Mach 2 and altitudes of up to 20,000 meters (65,500 feet) across distances ranging from 3,080 to 6,200 kilometers depending on the specific model. The prototype Tupolev Tu-144 takes to the skies for the first time on December 31, 1968, becoming the world's first supersonic airliner and piercing the sound barrier on June 5, 1969. Delays in production sparked by an accident involving a manufacturing prototype halt development efforts until the system enters service in December 1975 as cargo and postal aircraft, then later resumes commercial operations as passenger transport beginning with a Moscow-Alma-Ata (Kazakhstan) route in November 1977. Following another incident during test flight on May 1978, which forces the grounding of commercial services, Tupolev Tu-144's resume as cargo transportation units continue until the cessation in 1983. An airplane undergoes revitalization in 1996 through an agreement between Tupolev and NASA; however, this device is ultimately taken out of circulation permanently by December 1999. Three variants emerge: Tu-144 (the prototype, with a solitary device produced), Tu-144S, which utilizes Kouznetsov NK-144A after-combustion turbojets for its power supply, and Tu-144D, an alternative configuration, driven by Kolesov RD-36-51 without secondary fuel combustion for heightened efficiency and decreased fuel consumption. Modified and redesigned with the more advanced double flow, Kouznetsov NK-32 afterburner system, it transforms into a distinct sub-model: Tu-144LL. With 16 completed aircraft (one prototype, ten examples of the Tu-144S, and five exemplars of the Tu-144D), production activities for this craft terminate in 1985