Download or read book The Effect of Blade section Thickness Ratios on the Aerodynamic Characteristics of Related Full scale Propellers at Mach Numbers Up to 0 65 written by A. J. Eggers and published by . This book was released on 1953 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Blade section Thickness Ratios on the Aerodynamic Characteristics of Related Full scale Propellers at Mach Numbers Up to 0 65 written by Julian D. Maynard and published by . This book was released on 1949 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Index of NACA Technical Publications written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1949 with total page 1370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Selected Listing of NASA Scientific and Technical Reports for written by and published by . This book was released on 1949 with total page 750 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aerodynamic Characteristics at High Speeds of Full scale Propellers Having Different Shank Designs written by Julian D. Maynard and published by . This book was released on 1947 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Blade section Camber on Aerodynamic Characteristics of Full scale Supersonic type Propellers at Mach Numbers to 1 04 written by Julian D. Maynard and published by . This book was released on 1956 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Simulated Icing on Propeller Performance written by Blake W. Corson and published by . This book was released on 1946 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tests of a 10-foot-diameter three-blade Curtiss 89301-15 propeller with Clark Y blade sections have been conducted in the Langley 16-foot high-speed tunnel in order to determine the effect of simulated iceon the aerodynamic characteristics of the propeller. The irregular coat of cement and fabric was used on the blades to simulate in outline and thickness a formation of glaze ice that might be formed in flight. The propellers were tested on a new 2000-horsepower dynamometer, a brief description of which is included. All tests were made at a rotational speed of 1800 rpm for blade angles of 20, 25, 35, and 40 degrees at the 42-inch radius and at airspeeds varying from 120 to 420 miles per hour. The results are representative of full-scale constant-speed propeller operation.
Download or read book Investigation of the NACA 4 0 03 45 Two blade Propeller at Forward Mach Numbers to 0 925 written by Melvin M. Carmel and published by . This book was released on 1950 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analysis of Wind tunnel Tests to a Mach Number of 0 90 of a Four engine Propeller driving Airplane Configuration Having a Wing with 40 Degrees Sweepback and an Aspect Ratio of 10 written by George G. Edwards and published by . This book was released on 1956 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation has been conducted at speeds up to a Mach number of 0.90 to determine the effects of operating propellers on the longitudinal characteristics of a four-engine tractor airplane configuration having a 40 degrees swept wing with an aspect ratio of 10. Results of wind-tunnel tests of a model representing such an airplane configuration (see NACA TN 3789) show that these effects are of most concern in the low-speed high-thrust flight regime. In the present report the low-speed data are analyzed to determine the source of the various effects and to indicate how the adverse effects can be reduced, and the high-speed data are discussed primarily from the standpoint of Mach number effects. The analysis of the low-speed data indicates that the large variations of longitudinal stabil.itywith angle of attack resulted primarily from passage of the tail into and out of the slipstream. The slipstream also created large lift increments on the wing, particularly with flaps deflected, which resulted in increases in stability (with increasing thrust coefficient) from the outboard propeller and decreases in stability from the inboard propeller. It was concluded that the longitudinal stabiltty characteristics of the model couldbe improved by moving the nacelles outward, increasing the tail height, and reducing the tail span.
Download or read book Research Abstracts and Reclassification Notice written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1956 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Trailing edge Extension Flaps on Propeller Characteristics written by John L. Crigler and published by . This book was released on 1945 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summary: An analysis was made to determine the effect on propeller performance of extension flaps added to the trailing edge of a propeller blade. A method of calculating the changes in the ideal angle of attack, the angle of zero lift, and the design lift coefficient of a propeller blade section having a trailing-edge extension flap was utilized to calculate the performance of a six-blade dual-rotating propeller with extension flaps varying up to 40 percent chord. The method was used to determine the angle that the flap extension must make with the chord in order to obtain a particular load distribution. Although the analysis in this report was made for a wind-tunnel propeller designed to operate at low advance-diameter ration, the method is directly applicable to any propeller section under any operating condition.
Download or read book Aerodynamic Characteristics at High Speeds of Full scale Propellers Having Clark Y Blade Sections written by Peter J. Johnson and published by . This book was released on 1948 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tests of Two blade Propellers in the Langley 8 foot High speed Tunnel to Determine the Effect on Propeller Performance of a Modification of Inboard Pitch Distribution written by James Benjamin Delano and published by . This book was released on 1951 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper presents propeller characteristics for two propellers that differ only in inboard pitch distribution. The forward Mach number range extended to 0.062 and the blade-angle range was from 20 to 55 degrees. Section thrust-coefficient data are also presented to afford a more detailed analysis of the effects of modifying the pitch distribution of the inboard sections of a propeller.
Download or read book Aerodynamic Characteristics at High Speeds of Related Full scale Propellers Having Different Blade section Cambers written by Julian D. Maynard and published by . This book was released on 1948 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report written by and published by . This book was released on 1953 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book WADC Technical Note written by United States. Wright Air Development Division and published by . This book was released on 1959 with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aerodynamic Characteristics of a Full scale Propeller Tested with Both Rigid and Flapping Blades and with Cyclic Pitch Control written by Kenneth W. Mort and published by . This book was released on 1963 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
