106] With these definitions in mind, one may now examine in a little more detail the flow at high speeds. Up to now, the airplane was considered to be in motion at subsonic speeds. Drag was composed of three main components- skin-friction drag, press
The Mach number is a measure of the ratio of the airplane speed to the speed of sound. In other words, it is a number that may relate the degree of warning that air may have to an airplane approach. The Mach number is named after Ernst Mach, an Austr
SP-367 Introduction to the Aerodynamics of Flight 1. V. TRANSONIC FLOW.  Up to this point the airplane was considered to be in motion at subsonic speeds. The air was treated as though it were incompressible and a study of the aerodynamics involv
There is a famous little story, untrue of course, of the pilot who flew his plane beyond the sound barrier and then got trapped there because of insufficient reverse thrust to get back below the speed of sound. Another case of perpetual motion. 1. It
By: Ryan Cannon, Clint Johnson, and Reuben Smith
What is Drag?
Drag- is the term used to denote resistance to airflow. It is an aerodynamic force on a body that acts parallel and opposite to the relative wind.
Types of Drag