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Video footage: CIRCA 1974 - While a Lockheed YF-12 is seen in flight, a narrator explains what an aerodynamic "unstart" is.
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Definition of the noun Unstart

What does Unstart mean as a name of something?


  1. A sudden compressor stall that can occur in the jet engines of supersonic aircraft.


Unstart, is technical term used in supersonic aerodynamics to refer to a generally violent breakdown of the supersonic airflow. Original use came about as wind tunnels were designed that could drive the airflow supersonic. 'Starting' the supersonic wind tunnel is therefore the process in which the air becomes supersonic. Unstart of the wind tunnel is the reverse process. The shock waves that develop during the starting or unstart process are often visualized with schlieren or shadowgraph optical techniques.

Printed dictionaries and other books with definitions for Unstart

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Google previewAlgorithms—Advances in Research and Application: 2013 Edition (2013)

According to news reporting from Heilongjiang, People's Republic of China, by VerticalNews journalists, research stated, “Inlet unstart is a complex phenomenon which would dramatically degrade the performance of hypersonic vehicles.

Google previewThe New And Complete Dictionary Of The English Language (1775)

In Which All The Words are Introduced ... : To Which Is Prefixed, A Comprehensive Grammar ; In Two Volumes by John Ash

Unstart'ed (adj. from un, and started) Not started. . . Unitart/led (adj. from uń, and startled) Not startled. Unstan'ved (adj. from un, and starved) Not starved. Unstate (v. t. from un, and state) To put ont of state, Unstated (p. from unftäte) Put out of ...

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Video about Unstart

Unstart Meaning

Video shows what unstart means. A sudden compressor stall that can occur in the jet engines of supersonic aircraft.. Unstart Meaning. How to pronounce ...

Scrabble value of U1N1S1T1A1R1T1

The value of this 7-letter word is 7 points, but it's not an accepted word in the Official Scrabble Players Dictionary.

Anagrams of UNSTART

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