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Machmeter

1 substantive

Terminological databases

EKI terminibaas Esterm

ID 732803 Last modified 03.05.2024
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Domain air traffic
machmeter
Machmeter
  • an instrument that displays the Mach number of the aircraft derived from inputs of the pilot and static pressures
Good to know
  • Valdkond ICAO lisade põhjal loodud klassifikaatori järgi: Lennutegevus
Related
mahhmeeter
machmeter
Machmeter

Metroloogia terminibaas

ID 574134 Last modified 06.10.2023
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Domain metrologymeasuring instruments
mahhmõõtur preferred
mahhmeeter deprecated
machmeter preferred
Machmeter
  • õhusõiduki pitot-staatilise süsteemi lennukiiruse mõõtevahend, mis näitab tegeliku lennukiiruse ja helikiiruse suhet, st ühikuga üks suurust, mida nimetatakse Machi arvuks
  • aircraft pitot-static system flight instrument that shows the ratio of the true airspeed to the speed of sound, a dimensionless quantity called Mach number
mahhmõõtur preferred
Usage examples
  • Kui helikiirusel õhusõiduk lendab Machi numbriga üks, siis mahhmõõtur näitab Mach 1.
Good to know
  • Kui õhusõiduk transonaalsel lennul läheneb heli kiirusele, jõuab see kõigepealt oma kriitilise Machi numbrini, kus õhk, mis voolab üle selle pinna madalrõhualade, jõuab heli kiiruseni, moodustades lööklaine.
mahhmeeter deprecated
Good to know
  • Meeter on pikkusühik.
machmeter preferred
Usage examples
  • An aircraft flying at the speed of sound is flying at a Mach number of one, expressed as Mach 1.
Good to know
  • As an aircraft in transonic flight approaches the speed of sound, it first reaches its critical Mach number, where air flowing over low-pressure areas of its surface locally reaches the speed of sound, forming shock waves.
Machmeter
Mach meter

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