Читать книгу Flight Theory and Aerodynamics - Joseph R. Badick - Страница 12

After completing this chapter, you should be able to:

 Define basic units of measurement used in the introduction to aerodynamics in flight and convert from one unit of measurement to another.

 Identify the four forces on an airplane in constant altitude, unaccelerated flight.

 Calculate the mass of an aircraft.

 Define vector addition and apply to an aircraft in a climb.

 Describe Newton’s laws of motion and recognize how they apply to an introduction to aerodynamics.

 Define the purpose of linear motion in relation to constant acceleration, and then calculate aircraft acceleration, takeoff distance, and takeoff time.

 Describe the difference between energy and work and calculate the potential and kinetic energy of an aircraft in flight.

 Calculate the equivalent horsepower of an aircraft from a known thrust and speed.

 Define friction as it applies to an aircraft.

A basic understanding of the physical laws of nature that affect aircraft in flight and on the ground is a prerequisite for the study of aerodynamics. Modern aircraft have become more sophisticated, and more automated, using advanced materials in their construction requiring pilots to renew their understanding of the natural forces encountered during flight. Understanding how pilots control and counteract these forces better prepares pilots and engineers for the art of flying for harnessing the fundamental physical laws that guide them. Though at times this textbook will provide a quantitative approach to various principles and operating practices with formulas and examples using equations, it is more important that the reader understand WHY a principle of flight theory is discussed and how that subject matter intertwines with other materials presented; thus a qualitative approach is used throughout this textbook.

Perhaps your goal is to be a pilot, who will “slip the surly bonds of earth,” as John Gillespie Magee wrote in his classic poem “High Flight.” Or you may wish to build or maintain aircraft as a skilled technician. Or possibly you wish to serve in another vital role in the aviation industry, such as manager, dispatcher, meteorologist, engineer, teacher, or another capacity. Whichever area you might be considering, this textbook will build on what you already know and will help prepare you for a successful aviation career.