NASA Technical Reports Server (NTRS) 19930090826: Calculation of Airplane Performances Without the Aid of Polar Diagrams
Book details
- Title
- NASA Technical Reports Server (NTRS) 19930090826: Calculation of Airplane Performances Without the Aid of Polar Diagrams
- Publication year listed
- 1928
- Format
- Public domain eBook
- Reading access
- Free online reader; no registration required
- Source record
- View on Archive.org
About this book
NASA Technical Reports Server (NTRS) 19930090826: Calculation of Airplane Performances Without the Aid of Polar Diagrams
Author: NASA Technical Reports Server (NTRS)
Year: 1928
For good profiles the profile-drag coefficient is almost constant in the whole range which comes into consideration for practical flight. This is manifest in the consideration of the Gottingen airfoil tests and is confirmed by the investigations of the writer (measurements of the profile drag during flight by the Betz method), concerning which a detailed report will soon be published. The following deductions proceed from this fact. The formulas developed on the assumptions of a constant profile-drag coefficient afford an extensive insight into the influences exerted on flight performances by the structure of the airplane.
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