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Website. atr-aircraft .com. ATR 42, 22.67 m long. ATR 72, 27.17 m long. ATR ( French: Avions de transport régional; Italian: Aerei da Trasporto Regionale; or "Regional Transport Airplanes" in English) is a Franco - Italian aircraft manufacturer headquartered in Blagnac, France, a suburb of Toulouse. [ 4]
A 1951 USAF resolution test chart is a microscopic optical resolution test device originally defined by the U.S. Air Force MIL-STD-150A standard of 1951. The design provides numerous small target shapes exhibiting a stepped assortment of precise spatial frequency specimens. It is widely used in optical engineering laboratory work to analyze and ...
ATR also studied a turbofan version of the proposed ATR 82 (stretched version of the ATR 72) in the early 1990s. Powered by either the Allison GMA 3012 or the General Electric CF34 , the aircraft would have a range of about 1,000 nmi (1,900 km; 1,200 mi) and cruise at 375 kn (694 km/h; 432 mph) at an altitude of 25,000 ft (7,600 m).
418. In phonetics, advanced tongue root ( ATR) and retracted tongue root ( RTR) are contrasting states of the root of the tongue during the pronunciation of vowels in some languages, especially in Western and Eastern Africa, but also in Kazakh and Mongolian. ATR vs RTR was once suggested to be the basis for the distinction between tense and lax ...
Attenuated total reflectance. Attenuated total reflection ( ATR) is a sampling technique used in conjunction with infrared spectroscopy which enables samples to be examined directly in the solid or liquid state without further preparation. [1] Light undergoes multiple internal reflections in the crystal of high refractive index, shown in yellow.
A HOP! ATR 42-500 on final approach. The ATR 42 is a regional airliner produced by Franco-Italian manufacturer ATR, with final assembly in Toulouse, France. On 4 November 1981, the aircraft was launched with ATR, as a joint venture between French Aérospatiale (now part of Airbus) and Aeritalia (now Leonardo S.p.A. ).
The ATR 72 is a twin-engine turboprop, short-haul regional airliner developed and produced in France and Italy by aircraft manufacturer ATR (Aerei da Trasporto Regionale or Avions de transport régional), a joint venture formed by French aerospace company Aérospatiale (now Airbus) and Italian aviation conglomerate Aeritalia (now Leonardo S.p.A. ).
The Advanced Test Reactor ( ATR) is a research reactor at the Idaho National Laboratory, located east of Arco, Idaho. This reactor was designed and is used to test nuclear fuels and materials to be used in power plants, naval propulsion, research and advanced reactors. It can operate at a maximum thermal power of 250 MW and has a "Four Leaf ...