Download or read book Wind tunnel Investigation of an N A C A 23012 Airfoil with Two Arrangements of a Wide chord Slotted Flap written by Thomas Anthony Harris and published by . This book was released on 1939 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation has been made in the N.A.C.A. 7- by 10-foot wind tunnel of a large-chord N.A.C.A. 23012 airfoil with several arrangements of a 40-percent-chord slotted flap to determine the section aerodynamic characteristics of the airfoil as affected by slot shape, flap location, and flap deflection. The flap positions for maximum lift, the polars for arrangements considered favorable for take-off and climb, and the complete section aerodynamic characteristics for selected optimum arrangements were determined. A discussion is given of the relative merits of the various arrangements. A comparison is made of slotted flaps of different chords on the N.A.C.A. 23012 airfoil.

Download or read book Wind tunnel Investigation of an NACA 23012 Airfoil with Several Arrangements of Slotted Flaps with Extended Lips written by John G. Lowry and published by . This book was released on 1941 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation was made in the NACA 7- by 10-foot wind tunnel to determine the effect of slot-lip location on the aerodynamic section characteristics of an NACA 23012 airfoil with a 30-percent-chord slotted flap. Tests were made with slot lips located at 90 and 100 percent of the airfoil chord and with two different flap shapes.

Download or read book Wind tunnel Investigation of an N A C A 23012 with Various Arrangements of Slotted Flaps written by Carl J. Wenzinger and published by . This book was released on 1939 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wind tunnel Investigation of an NACA 23012 Airfoil with Two Arrangements of a Wide chord Slotted Flap written by Thomas A. Harris and published by . This book was released on 1939 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wind tunnel Investigation of an N A C A 23012 Airfoil with Two Arrangements of a 40 percent chord Slotted Flap written by Frank Duschik and published by . This book was released on 1940 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wind tunnel Investigation of an NACA 23012 Airfoil with a 0 30 airfoil chord Double Slotted Flap written by Paul E. Purser and published by . This book was released on 1942 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tests to determine the effect of flap position and deflection on the aerodynamic characteristics of an NACA 23012 airfoil with a double slotted flap having a chord 30 percent of the airfoil chord (0.30c) were conducted in the LMAL 7- by 10-foot tunnel. In addition, a few tests were made to determine the aerodynamic section characteristics as affected by the size and shape of the fore flap, by movement of the fore flap and rear flap as a unit, and by variation in the airfoil lower lip. Contours of rear-flap-nose position for various values of maximum section lift coefficient, section profile-drag coefficient, and section pitching-moment coefficient are presented at three selected fore-flap positions for various rear-flap deflections. The complete aerodynamic section characteristics are given at the three selected fore-flap positions for the optimum-lift and optimum-drag positions of the rear flap at several deflections.

Download or read book Preliminary Wind tunnel Investigation of an NACA 23012 Airfoil with Various Arrangements of Venetian blind Flaps written by Carl J. Wenzinger and published by . This book was released on 1940 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wind tunnel Investigation of an N A C A 23012 Airfoil with a 0 30 airfoil chord Double Slotted Flap written by Paul E. Purser and published by . This book was released on 1944 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wind tunnel Investigagion of an NACA 23102 Airfoil with a Handley Page Slat and Two Flap Arrangements written by Sidney M. Harmon and published by . This book was released on 1942 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation was made in the 7- by 10-foot wind tunnel of an NACA 23102 airfoil equipped with a Handley Page slate and a slotted and a split flap. The purpose of the investigation was to determine the aerodynamic section characteristics of this airfoil with and without flaps, as affected by the location of the Handley Page slat. A range of slat-nose locations was investigated both with and without flaps at a constant slat gap, and the effect of slat gap was investigated for the slotted flap deflected 40 degrees. The slat position for maximum lift, polars for slotted and split flaps for the most favorable slat arrangements for maximum lift, and complete section data for the most favorable slat arrangements are included. Contours of slat-nose location are given for maximum lift coefficient, for angle of attack for maximum lift coefficient, and for drag and pitching moments at selected lift coefficients.

Download or read book Wind tunnel Investigation of an NACA 23021 Airfoil with a 0 32 airfoil chord Double Slotted Flap written by Jack Fischel and published by . This book was released on 1944 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summary: An investigation was made in the LMAL 7- by 10-foot wind tunnel of an NACA 23021 airfoil with a double slotted flap having a chord 32 percent of the airfoil chord (0.32c) to determine the aerodynamic section characteristics with the flaps deflected at various positions. The effects of moving the fore flap and rear flap as a unit and of deflecting or removing the lower lip of the slot were also determined.

Download or read book Wind tunnel Investigation of a NACA 23012 Airfoil with a Handley Page Slat and Two Flap Arrangements written by Marvin J. Schuldenfrei and published by . This book was released on 1942 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wind tunnel Investigation of an NACA Full span High lift Lateral control Combination written by Francis Melvin Rogallo and published by . This book was released on 1942 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation was made in the NACA 7- by 10-foot wind tunnel to determine the aerodynamic section characteristics of several arrangements of an NACA full-span high-lift lateral-control combination. The combination is essentially a full-span flap of airfoil profile that retracts ahead of a narrow-chord full-span aileron. In the flap-retracted condition the aileron is a conventional trailing-edge aileron of short chord and long span. In the flap-deflected condition the flap is similar to a Fowler flap and the aileron becomes a full-span slot-lip aileron. The aileron is drooped in the flap-deflected condition to improve high-lift characteristics. Tests were run at several aileron and flap angles and with several widths of slot to determine the optimum arrangement.

Download or read book Wind tunnel Investigation of an N A C A 23021 Airfoil with Two Arrangements of a 40 percent chord Slotted Flap written by Frank Duschik and published by . This book was released on 1939 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation was made in the N.A.C.A. 7- by 10-foot wind tunnel of a N.A.C.A. 23021 airfoil with two arrangements of a 40-percent-chord slotted flap. The effect of slot shape, flap position, and flap deflection on the section aerodynamic characteristics was determined. The envelope polars and the section aerodynamic characteristics are given and are compared with those of an N.A.C.A. 23021 airfoil with a 25.66-percent-chord slotted flap and of an N.A.C.A. 23012 airfoil with a 40-percent-chord slotted flap. Plotted contours of flap-nose positions for maximum lift and minimum drag were used for selecting optimum flap paths.

Download or read book Wind tunnel Investigation of an NACA 23012 Airfoil with a 30 Percent Chord Maxwell Slate and with Trailing edge Flaps written by John G. Lowry and published by . This book was released on 1941 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation has been made in the NACA 7- by 10-foot wind tunnel of an NACA 23012 airfoil with a 30-percent-chord Maxwell leading-edge slat and with a slotted and a split flap. The purpose of the investigation was to determine the optimum slot gap of the Maxwell slat for, and the aerodynamic section characteristics of, the airfoil with several deflections of both types of flap. Curves of lift, drag, and pitching-moment characteristics for selected optimum arrangements are presented.

Download or read book Wind tunnel Investigation of an N A C A 23030 Airfoil with Various Arrangements of Slotted Flaps written by Isidore G. Recant and published by . This book was released on 1940 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation was made in the N.A.C.A. 7- by 10-foot wind tunnel of a large-chord N.A.C.A. 23030 airfoil with a 40- and a 25.66-percent-chord slotted flap to determine the section aerodynamic characteristics of the airfoil as affected by flap chord, slot shape, flap position, and flap deflections. The flap positions for maximum lift, the positions for minimum drag at moderate and high lift coefficients, and the complete section aerodynamic characteristics of selected optimum arrangements are given. Envelope polars of various flap arrangements are included. The relative merits of slotted flaps of different chords on the N.A.C.A. 23030 airfoil are discussed, and a comparison is made of each flap size with a corresponding flap size on the N.A.C.A. 23021 and 23012 airfoils.

Download or read book Wind tunnel Investigation of the Lift Characteristics of an NACA 27 212 Airfoil with Two Types of Flap written by Robert S. Swanson and published by . This book was released on 1940 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation has been made in the NACA 7- by 10-foot wind tunnel of a large chord NACA 27-212 airfoil with a 20-percent-chord split flap and with two arrangements of a 25.66-percent-chord slotted flap to determine the section lift characteristics as affected by flap deflection, flap position, and slot shape for the slotted flap. For the two arrangements of the slotted flap, the flap positions for maximum section lift are given. Comparable data on the NACA 23012 airfoil equipped with similar flaps are also given.

Download or read book Wind tunnel Investigation of Perforated Split Flaps for Use as Dive Brakes on a Rectangular NACA 23012 Airfoil written by Paul E. Purser and published by . This book was released on 1941 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aerodynamic characteristics of a rectangular NACA 23012 airfoil with single and double perforated split flaps have been determined in the NACA 7- by 10-foot wind tunnel. A large range of flap spans and deflections and a large range of spanwise and chordwise locations of the flaps were investigated. Dynamic pressure surveys were made behind the wing at the approximate location of the tail, in order to determine the extent and location of the wake for each flap arrangement. Tests were also made with a full-span plain flap to determine the effect of the various split-flap arrangements on aileron control.