Download or read book Wind tunnel Investigation of a Lifting Rotor Operating at Tip speed Ratios from 0 65 to 1 45 written by Julian L. Jenkins (Jr.) and published by . This book was released on 1965 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wind tunnel Investigation of a Lifting Rotor Operating at Tip speed Ratios from 0 65 to 1 45 written by Julian L. Jenkins and published by . This book was released on 1965 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Large scale Wind tunnel Investigation of a V STOL Transport Model with Wing mounted Lift Fans and Fuselage mounted Life cruise Engines for Propulsion written by Jerry V. Kirk and published by . This book was released on 1967 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1977 with total page 1160 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Investigation of Periodic Forces and Moments Transmitted to the Hub of the Four Lifting Rotor Configurations written by Milton A. Silveira and published by . This book was released on 1962 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wind Tunnel Investigation of Rotor Lift and Propulsive Force at High Speed written by Frank McHugh and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Index Aeronauticus written by and published by . This book was released on 1965-08 with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Jet boundary Corrections for Lifting Rotors Centered in Rectangular Wind Tunnels written by Harry H. Heyson and published by . This book was released on 1960 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wind tunnel Investigation to Determine the Critical Advance Ratio of the 8 31 scale Mcdonnell Model 82 Convertiplane Rotor written by HANS K. DOETSCH and published by . This book was released on 1953 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents test results on the 8/3l-scale McDonnell Model 82 Convertiplane in the Massie Memorial Wind Tunnel, Wright Air Development Center. The purpose of these tests was to determine the high-speed potential of the McDonnell rotor at a zero rotor angle of attack and in an approximately zero rotor lift condition. The main results are as follows: The critical advance ratio, a defined by the development of unstable blade flapping of the model rotor, decreases from approximately 1.6 at 400 rpm to approximately 1.3 at 800O rpm. The Wright Field result at 400 rpm agrees with previous tests with the same rotor and at the same rotor speed. The considerable effect of rotor speed on the critical advance ratio was unexpected and no definite explanation can be given for it either from these tests or from the available theoretical treatments of the rotor blade motion. The theoretical investigations on rigid rotor blades indicate stable blade motion up to much higher advance ratios than measured during these tests. However, these theoretical) investigations were made under simplifying assumptions which do not represent the true conditions on the rotor blades. Some of the discrepancies between these assumptions and the true blade conditions are discussed in this report. The discussion of the test results and their comparison with the results of References 3 and 4 show that the knowledge about the nature of the observed blade instability is still insufficient and that more experimental and theoretical work is required to clarify the problem.

Download or read book An Experimental Investigation of a Free tip Rotor Configuration in a Forward Flight Wind tunnel Test written by and published by . This book was released on 1983 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analysis of the Free tip Rotor Wind tunnel Test Results written by and published by . This book was released on 1985 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Low Speed Wind Tunnel Investigation of High Lift Devices on a 65 Degree Swept back Supersonic Wing of 3 44 Aspect Ratio written by Michael F. Marx and published by . This book was released on 1949 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wind Tunnel Investigation of a Circulation Controlled Airfoil Rotor Concept written by W. H. Gallaher and published by . This book was released on 1968 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: A 6 foot diameter rigid rotor, employing circulation controlled blades, was tested in an 8 x 12 foot low speed wind tunnel. Circulation control was generated by injecting gas tangentially from slots in the two circular cylinder blades. The tip jet driven model was tested as a propeller and in the normal helicopter mode. Tip speeds up to 440 fps were attained for the model operating in the propeller mode, while advance ratios up to 0.8 were attained in the helicopter mode. A computer simulation of the rotor model was used to analyze the wind tunnel results. Comparison between selected wind tunnel results and the computer simulation are presented. Agreement between selected propeller mode results and the computer simulation was obtained by using peak inflow velocities measured by a high resolution pitotstatic probe. The correlation between the helicopter mode tests and the computer simulation is commensurate with the large model to tunnel ratio and the present model support system. (Author).

Download or read book Jet Boundary Corrections for Lifting Rotors Centered in Rectangular Wind Tunnels written by Harry H. Heyson and published by . This book was released on 1960 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Results of a Wind Tunnel Investigation of a Model Rotor with a Free Tip written by and published by . This book was released on 1985 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Index to NASA Technical Publications written by United States. National Aeronautics and Space Administration and published by . This book was released on 1960-07 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Index of NASA Technical Publications written by United States. National Aeronautics and Space Administration and published by . This book was released on 1960 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: