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Transonic Longitudinal Aerodynamic Characteristics Of A Variable Sweep Tactical Fighter Model With Wing Sweeps Of 25 65 85 And 160 Degrees
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Book Synopsis Transonic Longitudinal Aerodynamic Characteristics of a Variable-sweep Tactical-fighter Model with Wing Sweeps of 25, 65, 85, and 160 Degrees by :
Download or read book Transonic Longitudinal Aerodynamic Characteristics of a Variable-sweep Tactical-fighter Model with Wing Sweeps of 25, 65, 85, and 160 Degrees written by and published by . This book was released on 1962 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Transonic Investigation of Aerodynamic Characteristics of a Swept-wing Fighter-airplane Model with Leading-edge Droop in Combination with Outboard Chord-extensions and Notches by : Charles F. Whitcomb
Download or read book Transonic Investigation of Aerodynamic Characteristics of a Swept-wing Fighter-airplane Model with Leading-edge Droop in Combination with Outboard Chord-extensions and Notches written by Charles F. Whitcomb and published by . This book was released on 1956 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation of the effects of several wing leading-edge modifications on the aerodynamic characteristics of a 45 degree swept-wing fighter-airplane model has been conducted in the Langley 16-foot transonic tunnel at low and high lifting conditions at Mach numbers from 0.85 to 1.03. The investigation included the determination of the effect on longitudinal stability and performance characteristics of wing leading-edge and chord-extension droops of 6 and 20 degrees, chord-extension overhangs of 0.075c and 0.15c (where c is the wing chord), leading-edge notches cut out at the inboard end of the 0.075c chord-extension to depths of 0.075c and 0.125c, and indentation of the model fuselage to conform partially to the supersonic area rule for a Mach number of 1.20. Lift, drag, and pitching-moment data were obtained for configurations with the tail on and off. Comparisons of data obtained from the present model with data from a configuration with leading-edge slats are included.
Book Synopsis The Transonic Aerodynamic Characteristics of Two Variable-sweep Airplane Configurations Capable of Low-level Supersonic Attack by : Ralph P. Bielat
Download or read book The Transonic Aerodynamic Characteristics of Two Variable-sweep Airplane Configurations Capable of Low-level Supersonic Attack written by Ralph P. Bielat and published by . This book was released on 1960 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Static Longitudinal and Lateral Aerodynamic Characteristics at a Mach Number of 2.20 of a V/STOL Airplane Configuration with a Variable-sweep Wing and with a Skewed Wing Design by : Odell A. Morris
Download or read book Static Longitudinal and Lateral Aerodynamic Characteristics at a Mach Number of 2.20 of a V/STOL Airplane Configuration with a Variable-sweep Wing and with a Skewed Wing Design written by Odell A. Morris and published by . This book was released on 1961 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Transonic Aerodynamic and Aeroelastic Characteristics of a Variable Sweep Wing by :
Download or read book Transonic Aerodynamic and Aeroelastic Characteristics of a Variable Sweep Wing written by and published by . This book was released on 1985 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The flow over the B-1 wing is studied computationally, including the aeroelastic response of the wing. Computed results are compared with results from wind tunnel and flight tests for both low-sweep and high-sweep cases, at 25.0 deg and 67.5 deg; respectively, for selected transonic Mach numbers. The aerodynamic and aeroelastic computations are made by using the transonic unsteady code ATRAN3S. Steady aerodynamic computations compare well with wind tunnel results for the 25.0 deg sweep case and also for small angles of attack at the 67.5 deg sweep case. The aeroelastic response results show that the wing is stable at the low sweep angle for the calculation at the Mach number at which there is a shock wave. In the higher sweep case, for the higher angle of attack at which oscillations were observed in the flight and wind tunnel tests, the calculations do not show any shock waves. Their absence lends support to the hypothesis that the observed oscillations are due to the presence of leading edge separation vortices and are not due to shock wave motion as was previously proposed.
Book Synopsis Low-speed Investigation of the Aerodynamic Characteristics of a Variable-sweep Supersonic Transport Configuration Having a Blended Wing and Body by : William C. Sleeman
Download or read book Low-speed Investigation of the Aerodynamic Characteristics of a Variable-sweep Supersonic Transport Configuration Having a Blended Wing and Body written by William C. Sleeman and published by . This book was released on 1961 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aerodynamic Characteristics of a Wing with Quarter-chord Line Swept Back 45 Degrees, Aspect Ratio 4, Taper Ratio 0.3, and NACA 65A006 Airfoil Section by : Boyd C. Myers
Download or read book Aerodynamic Characteristics of a Wing with Quarter-chord Line Swept Back 45 Degrees, Aspect Ratio 4, Taper Ratio 0.3, and NACA 65A006 Airfoil Section written by Boyd C. Myers and published by . This book was released on 1949 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper presents the results of the investigation of a wing-alone and wing-fuselage configuration employing a wing with the quarter-chord line swept back 45 degrees, with aspect ratio 4, taper ratio 0.3, and an NACA 65A006 airfoil section. Lift, drag, pitching moment, and root bending moment were obtained for these configurations. In addition, effective downwash angles and dynamic-pressure characteristics in the region of a probable tail location were also obtained for these configurations and are presented for a range of tail heights at one tail length. In order to expedite the publishing of these data, only a brief analysis is included.
Book Synopsis Longitudinal Aerodynamic Characteristics of a Generic Fighter Model with a Wing Designed for Sustained Transonic Maneuver Conditions by : James C. Ferris
Download or read book Longitudinal Aerodynamic Characteristics of a Generic Fighter Model with a Wing Designed for Sustained Transonic Maneuver Conditions written by James C. Ferris and published by . This book was released on 1986 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aerodynamic Characteristics of a Delta Wing with Leading Edge Swept Back 45 Degrees, Aspect Ratio 4, and NACA 65A006 Airfoil Section by : William C. Sleeman
Download or read book Aerodynamic Characteristics of a Delta Wing with Leading Edge Swept Back 45 Degrees, Aspect Ratio 4, and NACA 65A006 Airfoil Section written by William C. Sleeman and published by . This book was released on 1949 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper presents the results of the investigation of wing-alone and wing-fuselage combination employing a delta wing having 45 degree sweepback of the leading edge, aspect ratio 4, and an NACA 65A006 airfoil section. Lift, drag, pitching moment, and root bending moment were obtained for these configurations. In addition, effective downwash angles and dynamic-pressure characteristics in the region of a probable tail location also were obtained for these configurations, and are presented for a range of tail heights at one tail length. In order to expedite publishing of these data, only a brief analysis is included.
Book Synopsis Subsonic Flutter Characteristics of a Variable Sweep Wing and Horizontal Tail Combination by : Walter J. Mykytow
Download or read book Subsonic Flutter Characteristics of a Variable Sweep Wing and Horizontal Tail Combination written by Walter J. Mykytow and published by . This book was released on 1970 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: The project concerns a subsonic investigation of a new type of flutter phenomenon, not previously critical from a design standpoint, involving elastic modes of the wing, fuselage, and stabilizer combination and also involving aerodynamic interference between the wing and horizontal tail. The effort, consisting of design of a flutter model, vibration and subsonic wind tunnel tests, and flutter analyses, was conducted to determine important controlling flutter parameters, to evaluate the accuracy of analyses for predicting the phenomenon, to establish flutter trends and to define flutter prevention design criteria which could be used in the early design stage to avoid the problem. Some of the important features that were determined are increasing wing sweep can lead to lower flutter speeds; wing bending to fuselage torsion frequency ratios were defined which provide the mechanical coupling essential to produce the phenomenon and minimum flutter speeds as a function of wing sweep angle; vertical separation or dihedral angle can be very influential and beneficial and is more important than longitudinal separation, the effects of which were found to be small to moderate; the effects of compressibility have been shown to be detrimental and decrease the flutter speed, and conclusive proof that the interference aerodynamics between the wind and tail, and particularly, the downwash shed from the wing, is an important and detrimental feature to the phenomenon. (Author).
Book Synopsis Static Longitudinal and Lateral Aerodynamic Characteristics at a Mach Number of 2.01 of a Tailless Delta V/STOL Configuration Having Variable-sweep Wing Panels by : M. Leroy Spearman
Download or read book Static Longitudinal and Lateral Aerodynamic Characteristics at a Mach Number of 2.01 of a Tailless Delta V/STOL Configuration Having Variable-sweep Wing Panels written by M. Leroy Spearman and published by . This book was released on 1961 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rolling Stability Derivatives of a Variable-sweep Tactical Fighter Model at Subsonic and Transonic Speeds by : William P. Henderson
Download or read book Rolling Stability Derivatives of a Variable-sweep Tactical Fighter Model at Subsonic and Transonic Speeds written by William P. Henderson and published by . This book was released on 1967 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Low-speed Investigation of the Effects of Wing Sweep on the Aerodynamic Characteristics of Parawings Having Equal-length Leading Edges and Keel by : Rodger L. Naeseth
Download or read book Low-speed Investigation of the Effects of Wing Sweep on the Aerodynamic Characteristics of Parawings Having Equal-length Leading Edges and Keel written by Rodger L. Naeseth and published by . This book was released on 1963 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation has been made in the Langley 300-MPH 7- by 10-foot tunnel to determine the aerodynamic characteristics of a related series of parawings in which wing sweep was the primary variable. The leading-edge sweep angles varied from 400 to 750 and the three basic parawings had flat-planform sweep angles of 350, 450, and 550. The canopies of the wings were made of fabric. Tests were made at an airspeed of 38.6 mph and a Reynolds number of approximately 1.5 X 106. The maximum angle-of-attack range was from 140 to 530 for the wings having a canopy of 350 flat-planform sweep. A limited investigation of lateral characteristics was made for sideslip angles from approximately -50 to 160 for two angles of attack, and lateral stability derivatives were obtained for some configurations through a angle-of-attack range. Forces and moments acting on the wing and apex hinge moments were measured.
Book Synopsis Aerodynamic Characteristics at Transonic and Supersonic Speeds of a Rocket-propelled Airplane Configuration Having a Diamond-plan-form Wing Aspect Ration 3.08 and a Low, Swept Horizontal Tail by : Alan B. Kehlet
Download or read book Aerodynamic Characteristics at Transonic and Supersonic Speeds of a Rocket-propelled Airplane Configuration Having a Diamond-plan-form Wing Aspect Ration 3.08 and a Low, Swept Horizontal Tail written by Alan B. Kehlet and published by . This book was released on 1954 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Large-scale Wind-tunnel Investigation of the Low-speed Aerodynamic Characteristics of a Supersonic Transport Model Having Variable-sweep Wings by : Anthony M. Cook
Download or read book Large-scale Wind-tunnel Investigation of the Low-speed Aerodynamic Characteristics of a Supersonic Transport Model Having Variable-sweep Wings written by Anthony M. Cook and published by . This book was released on 1965 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wind Tunnel Investigation of Aerodynamic Loads on Weapons Separated from Carriage Under the Wing of a Tactical Fighter Aircraft at Supersonic Speeds by : J. C. Donaldson
Download or read book Wind Tunnel Investigation of Aerodynamic Loads on Weapons Separated from Carriage Under the Wing of a Tactical Fighter Aircraft at Supersonic Speeds written by J. C. Donaldson and published by . This book was released on 1973 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: Exploratory static-stability tests were made on models of the MK-84 weapon and a modular weapon configuration during simulated weapon separation from the wing of the F-4C Tactical Fighter Aircraft at freestream Mach numbers 1.76, 2.0, and 2.5. Data were obtained with the parent aircraft at zero angle of attack and the weapon at the carriage incidence angle of -1 deg. Supplementary data were obtained for weapon angles of attack of + or - deg. Unit Reynolds number ranged from 4.6 million per ft at M free stream mach number = 1.76 to 6.2 million per ft at M free stream mach number = 2.5. Selected results are presented which show the effects on the weapon aerodynamic loads of free-stream Mach number, weapon angle of attack, weapon axial position, and the presence of other stores. Representative shadowgraph and schlieren photographs of the interference flow field are also presented. (Author).
