PHAK · Chapter 5: Aerodynamics of Flight
FAA · Retrieved 2026-09-05
Educational reference; original Owl summariesAERODYNAMICS
Dynamic pressure
FLIGHT SCIENCE / CONCEPT REFERENCE
SCIENCEConditions & principles
A measure of the airflow’s kinetic energy per unit volume.
REFERENCE COVERAGE3 / 3 editorial sections
PROVENANCE1 linked source
LAST RETRIEVED2026-09-05
Editorial section coverage describes the article structure, not scientific validation or completeness.
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Source editions
PHAK · Chapter 5: Aerodynamics of Flight ↗Edition / snapshot: FAA-H-8083-25C, 2023Retrieved: 2026-09-05
Retrieval dates record when Owl obtained the data; they are not publication dates or proof that a specification is current. Where the edition contains only a snapshot date, the original publication date is not recorded.
01
Mechanism
Dynamic pressure depends linearly on density and quadratically on speed relative to the air. It provides a useful scale for aerodynamic loads.
02
Aircraft response
For unchanged geometry and coefficients, higher dynamic pressure increases lift and drag. Doubling airspeed makes dynamic pressure four times larger at unchanged density.
03
Context & interpretation
The relation uses true airspeed. Instrument corrections and compressibility matter when relating dynamic pressure to indicated or calibrated airspeed.
Physical relationship
q = ½ ρ V²q in Pa, density ρ in kg/m³, true airspeed V in m/s.
Sources & context
Educational explanation of physical mechanisms. Aircraft-specific procedures, limitations and current weather information are separate references.