supersonic frequency - перевод на итальянский
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supersonic frequency - перевод на итальянский

COMMERCIAL AIRLINER ABLE TO FLY FASTER THAN THE SPEED OF SOUND
Supersonic travel; Hypersonic transport; Supersonic Transports; Supersonic airliner; Suborbital transport; Supersonic Transport; Commercial supersonic airliner; Supersonic transports; Hypersonic airliner; Quiet supersonic aircraft; Supersonic passenger aircraft; Supersonic airliners
  • [[Aeroflot]] [[Tupolev Tu-144]] at the [[Paris Air Show]] in 1975.
  • Boeing concept presented to NASA Aeronautics Research Mission Directorate in April 2010
  • Boeing hypersonic transport concept
  • [[Lockheed Martin]] concept presented to NASA [[Aeronautics Research Mission Directorate]] in April 2010
  • Qualitative variation in Cd factor with Mach number for aircraft
  • The [[Sinsheim Auto & Technik Museum]] in Germany is the only location where both Concorde and the Tu-144 are displayed together.
  • The [[Tupolev Tu-144]] was the first SST to enter service and the first to leave it. Only 55 passenger flights were carried out before service ended due to safety concerns. A small number of cargo and test flights were also carried out after its retirement.

supersonic frequency      
frequenza supersonica
supersonic speed         
  • [[British Airways]] [[Concorde]] in early BA livery at [[London-Heathrow Airport]], in the early 1980s
  • The sound source has now broken through the sound speed barrier, and is traveling at 1.4 times the speed of sound, c (Mach 1.4). Because the source is moving faster than the sound waves it creates, it actually leads the advancing wavefront. The sound source will pass by a stationary observer before the observer actually hears the sound it creates.
SPEED THAT EXCEEDS THE SPEED OF SOUND
Super sonic; Supersonic Flight; Super sonic flight; Faster than sound; Trisonic; Supersonic; Supersonically
velocità supersonica (velocità superiore a quella del suono nell"aria, circa 1200 km. per ora)
audio frequency         
  • C3, an octave below middle C. The frequency is half that of middle C (131 Hz).
  • C5, an octave above middle C. The frequency is twice that of middle C (523 Hz).
  • middle C]] (262 Hz). (Scale: 1 square is equal to 1 [[millisecond]])
PERIODIC VIBRATION WHOSE FREQUENCY IS AUDIBLE TO THE AVERAGE HUMAN
Audio frequencies; Sound frequency; Frequency (sound); Audio Frequency; Audible frequency; Audio-frequency; Audiofrequency
audiofrequenza

Определение

supersonic
¦ adjective involving or denoting a speed greater than that of sound.
Derivatives
supersonically adverb

Википедия

Supersonic transport

A supersonic transport (SST) or a supersonic airliner is a civilian supersonic aircraft designed to transport passengers at speeds greater than the speed of sound. To date, the only SSTs to see regular service have been Concorde and the Tupolev Tu-144. The last passenger flight of the Tu-144 was in June 1978 and it was last flown in 1999 by NASA. Concorde's last commercial flight was in October 2003, with a November 26, 2003 ferry flight being its last airborne operation. Following the permanent cessation of flying by Concorde, there are no remaining SSTs in commercial service. Several companies have each proposed a supersonic business jet, which may bring supersonic transport back again.

Supersonic airliners have been the objects of numerous recent and ongoing design studies. Drawbacks and design challenges are excessive noise generation (at takeoff and due to sonic booms during flight), high development costs, expensive construction materials, high fuel consumption, extremely high emissions, and an increased cost per seat over subsonic airliners. Despite these challenges, Concorde claimed it operated profitably.

In 2016, NASA announced it had signed a contract for the design of a modern low-noise SST prototype. The designing team is led by Lockheed Martin Aeronautics.