May, James E. Lockheed-California Company, Burbank, California.
- Necessity for circulation
- Effect of viscosity
- Aerodynamic force
- Effect of boundary layer
- Lift-control devices
- Finite-wing effects
- Stability and control
- Links to Primary Literature
- Additional Readings
Movement of a vehicle through the atmosphere at a speed appreciably below that of sound waves. Subsonic flight extends from zero (hovering) to a speed approximately 85% of sonic speed corresponding to the ambient temperature. At higher vehicle velocities the local velocity of air passing over the vehicle surface may exceed sonic speed, and true subsonic flight no longer exists.
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