A Simple Method for Estimating Terminal Velocity Including Effect of Compressibility on Drag
Title | A Simple Method for Estimating Terminal Velocity Including Effect of Compressibility on Drag PDF eBook |
Author | Ralph P. Bielat |
Publisher | |
Total Pages | 30 |
Release | 1945 |
Genre | Acceleration (Mechanics) |
ISBN |
Summary: A generalized drag curve that provides an estimate for the drag rise due to compressibility has been obtained for an analysis of wind-tunnel data of several airfoils, fuselages, nacelles, and windshields at speeds up to and above the wing critical speed. The airfoils analyzed had little or no sweepback and effective aspect ratios above 6.5. A chart based on the generalized drag curve is presented from which the terminal velocity of a conventional airplane that employs a wing of moderate aspect ratio and very little sweepback in a vertical dive may be rapidly estimated. In order to use the chart, the only data that need be known about the airplane are a low-speed drag coefficient, the wing critical speed, and the wing loading. The terminal velocities for three airplanes were computed in order to illustrate the use of the method and chart. Good agreement between the estimated terminal velocity and the measured flight terminal velocity was indicated for all three airplanes.
Simple Method for Estimating Terminal Velocity Including Effect of Compressibility on Drag
Title | Simple Method for Estimating Terminal Velocity Including Effect of Compressibility on Drag PDF eBook |
Author | Langley Aeronautical Laboratory |
Publisher | Hassell Street Press |
Total Pages | 30 |
Release | 2021-09-09 |
Genre | |
ISBN | 9781013471421 |
This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Method for Estimating the Compressibility Drag of an Airplane
Title | Method for Estimating the Compressibility Drag of an Airplane PDF eBook |
Author | Stanford University. Department of Aeronautics and Astronautics |
Publisher | |
Total Pages | 54 |
Release | 1983 |
Genre | |
ISBN |
Wartime Report
Title | Wartime Report PDF eBook |
Author | United States. National Advisory Committee for Aeronautics |
Publisher | |
Total Pages | 272 |
Release | |
Genre | Aeronautics |
ISBN |
Wartime Report
Title | Wartime Report PDF eBook |
Author | |
Publisher | |
Total Pages | 654 |
Release | 194? |
Genre | Aeronautics |
ISBN |
Reproductions of reports, some declassified, of research done at Langley Memorial Aeronautical Laboratory during World War II. The order of reports does not represent when they were chronologically issued. Reference to the original version of each report is included.
A Study of NACA and NASA Published Information of Pertinence in the Design of Light Aircraft
Title | A Study of NACA and NASA Published Information of Pertinence in the Design of Light Aircraft PDF eBook |
Author | James C. Williams |
Publisher | |
Total Pages | 716 |
Release | 1970 |
Genre | Aerodynamics |
ISBN |
This report investigates critical reviews of NACA and NASA report literature on aerodynamics and aerodynamic load calculations for light aircraft design.
NACA Wartime Report
Title | NACA Wartime Report PDF eBook |
Author | United States. National Advisory Committee for Aeronautics |
Publisher | |
Total Pages | 716 |
Release | |
Genre | Aeronautics |
ISBN |