The value of the heat and water budget in presenting a coherent scheme of physical phenomena to university classes has been demonstrated in this chapter; its value in research has been shown in specific regions.

Full text of ' NASA TECHNICAL TRANS L ATI O N cs NASA U f-542 m o X I ^ a 1 > o a 0- CD LOAN COPY: RETURN TO AFWL tWLOL-2) KIRTtAND AFB, N MEX AERODYNAMICS AND FLIGHT DYNAMICS OF TURBOJET AIRCRAFT by T. Ligmn Transport Press, Moscow, 1967 NATIONAL AERONAUTICS AND SPACE ADMINISTRATION • WASHINGTON, D. • SEPTEMBER 1969 iiii TECH LIBRARY KAFB, NM DOb'^lDOa iN-fXlOfX X J. X-ua.«j AERODYNAMICS AND FLIGHT DYNAMICS OF TURBOJET AIRCRAFT By T. Ligum Translation of 'Aerodinamika i Dinamika Poleta Turboreaktivnykh Samoletov' Transport Press, Moscow, 1967 NATIONAL AERONAUTICS AND SPACE ADMINISTRATION For sal* by the Clearinghouse for Federal Scientific and Technical Information Springfield, Virginia 22151 - CFSTI price $3.00 / Table of Contents Introduction.,•■•• Chapter I.

The Physical Basis of High-Speed Aerodynamics §1. Variations in the Parameters of Air with Altitude. The Standard Atmosphere.

Compressibility of Air. The Propagation of Small Disturbences in Air Sound and Sound Waves. The Speed of Sound as a Criterion for the Compressibility of Gases. The Mach Number and its Value in Flight Problems §6.

Flight Speed. Corrections to Instrument Readings Necessitated by Compressibility.

The Character of the Propagation of Minor Perturbations in Flight at Various Altitudes. Trans- or Supersonic Flow of Air Around Bodies. Sonic 'boom'. Features of the Formation of Compression Shock During Flow Around Various Shapes of Bodies. Critical Mach Number. The Effect of Compressibility on the Motion of Air Flying Around a Wing.

The Dependence of the Speed of the Gas Flow on the Shape of the Channel. The Laval Nozzle. Laminar and Turbulent Flow of Ai r §1^. Pressure Distribution at Sub- and Supercritical Mach Numbers Chapter II. Aerodynamic Characteristics of the Wing and Aircraft. The Effect of Air Compressibility. The Dependence of the Coefficient c on the Angle of Attack §2.

The Effect of the Mach Number on the Behavior of the Dependence c = f(a). The Permissible Coefficient c per and its Dependence on the Mach Number...%k. Dependence of the Coefficient c on the Mach Number for Flight at a Constant Angle of Attack. The Affect of the Mach Number of the Coefficient c §6. Wing Wave Drag.

The Aircraft Polar. The Effect of the Landing Gear and Wing Mechanization on the Polar. The Affect of the Mach Number on the Aircraft Polar. Some Features of Wing Construction.

Means of Increasing the Critical Mach Number vi 1 1 5 7 8 11 lif 15 18 20 22 22 2k 27 27 30 31 32 33 36 38 39 41 k3 k3 §2. Features of Flow Around Swept Wings §3. Wing Construction in Turbojet Passenger Aircraft. Drag Propagation Between Separate Parts of Aircraft Cfiapter IV. Characteristics of tiie Power System.

Two-Circuit and Turbofan Engines. Basic Characteristics of Turbojet Engines §3. Throttle Characteristics. High-Speed Characteristics. High-Altitude Characteristics §6. The Effect of Air Temperature on Turbojet Engine Thru §7.

Thrust Horsepower. Positioning the Engines on the Aircraft Chapter V. Stages of Takoff. Forces Acting on the Aircraft During the Takeoff §4. Radio alfa online. Length of Takeoff Run. Lift-off Speed.

Methods of Takeoff. Failure of Engine During Takeoff. Influence of Various Factors on Takoff Run Length §8. Methods of Improving Takeoff Characteristics Chapter Vl. Forces Acting on Aircraft.