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the claim

Velocity through a rocket nozzle throat must be sonic

the verdict
COMMON KNOWLEDGE
Legacy classification; evidence review pending
Recorded sources
no sources on either side

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that velocity through a rocket nozzle throat must be sonic?

That flow through a convergent-divergent nozzle throat reaches sonic velocity under chocked conditions is a foundational principle of compressible gas dynamics, meaning no citation is required.

Verdict: COMMON KNOWLEDGE · 0 sources for, 0 against · Last checked

The analysis

The claim that the velocity through a rocket nozzle throat must be sonic is a fundamental, textbook definition of choked flow in compressible fluid dynamics (specifically for a de Laval nozzle). It represents standard engineering and physical first principles. Therefore, it is categorized as common knowledge and does not require empirical paper citations.

What does the evidence say?

The claim that the velocity through a rocket nozzle throat must be sonic is a fundamental, textbook definition of choked flow in compressible fluid dynamics (specifically for a de Laval nozzle). It represents standard engineering and physical first principles. Therefore, it is categorized as common knowledge and does not require empirical paper citations.

Receipt History
first checked05 Aug 2026
judged → COMMON KNOWLEDGE · 9505 Aug 2026
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