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Determination Of Lateral Stability Characteristics From Freeflight Model Tests With Experimental Results On The Effects Of Wing Vertical Position And Dihedral At Reransonic Speeds
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Book Synopsis Determination of lateral stability, Characteristics from freeflight model tests, with experimental results on the effects of wing vertical position and dihedral at reransonic speeds by : Clarence L. Gillis
Download or read book Determination of lateral stability, Characteristics from freeflight model tests, with experimental results on the effects of wing vertical position and dihedral at reransonic speeds written by Clarence L. Gillis and published by . This book was released on 1960 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Determination of Lateral Stability Characteristics from Free-flight Model Tests, with Experimental Results on the Effects of Wing Vertical Position and Dihedral at Transonic Speeds by : Clarence L. Gillis
Download or read book Determination of Lateral Stability Characteristics from Free-flight Model Tests, with Experimental Results on the Effects of Wing Vertical Position and Dihedral at Transonic Speeds written by Clarence L. Gillis and published by . This book was released on 1960 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: A test and analysis method is presented for determining airplane lateral stability characteristics, including aerodynamic derivatives, from flight tests of scale models. The method of analysis utilizes the rotating time-vector concept and also a quasi-static approach. Data are presented at transonic speeds for three swept-wing rocket-propelled models differing only in vertical position and dihedral of the wing. The method proved to be adequate for delineating the major effects of the geometric variations on the aerodynamic lateral stability derivatives. The effects of Reynolds number on the linearity of the static stability data for an unswept wing configuration are illustrated.
Book Synopsis Determination of Lateral Stability Characteristics from Free-flight Model Tests, with Experimental Results on Effects of Wing Vertical Position and Dihedral at Transonic Speeds [with List of References] by :
Download or read book Determination of Lateral Stability Characteristics from Free-flight Model Tests, with Experimental Results on Effects of Wing Vertical Position and Dihedral at Transonic Speeds [with List of References] written by and published by . This book was released on 1960 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Determination of Lateral Stability Characteristics from Free-flight Model Tests, with Experimental Results on the Effects of Wing Vertical Position and Dihedral at Transonic Speeds by : Clarence L. Gillis
Download or read book Determination of Lateral Stability Characteristics from Free-flight Model Tests, with Experimental Results on the Effects of Wing Vertical Position and Dihedral at Transonic Speeds written by Clarence L. Gillis and published by . This book was released on 1960 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Determination of the Effect of Negative Dihedral on Lateral Stability and Control Characteristics at High Lift Coefficients by : Marion O. McKinney
Download or read book Experimental Determination of the Effect of Negative Dihedral on Lateral Stability and Control Characteristics at High Lift Coefficients written by Marion O. McKinney and published by . This book was released on 1946 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summary: The effects of negative dihedral on lateral stability and control characteristics at high lift coefficients have been determined by flight tests of a model in the Langley free-flight tunnel. The geometric dihedral angle of the model wing was varied from 0° to -20° and the vertical-tail area, from 0 to 35 percent of the wing area. The model was flown with various combinations of dihedral angle and vertical-tail area at lift coefficients of 1.0, 1.4, and 1.8. As the effective dihedral was decreased from 0° to -15°, the model became increasingly difficult to fly. With an effective dihedral of -15° the flying characteristics were considered to be dangerous because, when there was only a slight lag in the application of corrective control following a disturbance, the unstable moments resulting from spiral instability became sufficiently large to overpower the moments of the controls so that return to straight flight was impossible. Inasmuch as full-scale airplanes because of their greater size will diverge at a slower rate than free-flight models, the amount of negative effective dihedral that would constitute a dangerous condition is expected to be greater for full-scale airplanes.
Book Synopsis The Effect of Lateral Area on the Lateral Stability and Control Characteristics of an Airplane as Determined by Tests of a Model in the Langley Free-flight Tunnel by : Hubert M. Drake
Download or read book The Effect of Lateral Area on the Lateral Stability and Control Characteristics of an Airplane as Determined by Tests of a Model in the Langley Free-flight Tunnel written by Hubert M. Drake and published by . This book was released on 1946 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of large variations of lateral area on the lateral stability and control characteristics of a free-flying model when ailerons are used as the principal control have been determined by flight tests in the Langley free-flight tunnel. The effects of the lateral-force parameter (rate of change of lateral-force coefficient with angle of sideslip) were investigated for a wide range of values of the directional-stability parameter (rate of change of yawing-moment coefficient with angle of sideslip) and the rotary-damping-in-yaw parameter (rate of change of yawing-moment coefficient with yawing angular velocity).
Book Synopsis Experimental Determination of the Effects of Dihedral Vertical-tail Area, and Lift Coefficient of Lateral Stability and Control Characteristics by : Marion O. McKinney
Download or read book Experimental Determination of the Effects of Dihedral Vertical-tail Area, and Lift Coefficient of Lateral Stability and Control Characteristics written by Marion O. McKinney and published by . This book was released on 1946 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of wide variations of dihedral, vertical-tail area, and lift coefficient on lateral stability and control and on general flying characteristics have been determined by flight tests of a model in the Langley free-flight tunnel. In order to vary the effective dihedral and directional stability of the model, the geometric dihedral angle was varied from -20 degrees to 18 degrees and the vertical tail area, from 0 to 35 percent of the wing area. The tests were made over a range of lift coefficient from 0.5 to 1.8.
Book Synopsis Lateral Stability and Control Characteristics of a Free-flying Model Having an Unsweptwing with an Aspect Ratio of 2 by : Bernard N. Daley
Download or read book Lateral Stability and Control Characteristics of a Free-flying Model Having an Unsweptwing with an Aspect Ratio of 2 written by Bernard N. Daley and published by . This book was released on 1948 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report contains results of tests made in the Langley free-flight tunnel to determine the lateral stability, control, and general flying characteristics of a free-flying model having an unswept wing with an aspect ratio of 2. The tests were made at a lift coefficient of 1.0 and covered a range of geometric dihedral angles from -20 degrees to 20 degrees and a range of vertical-tail areas from 0 to 15 percent of the wing area. The results of these tests were compared with the previously reported results of a similar series of tests on a conventional model having a wing with an aspect ratio of 6.
Book Synopsis Effects of Wing Position and Vertical-tail Configuration on Stability and Control Characteristics of a Jet-powered Delta-wing Vertically Rising Airplane Model by : Powell M. Lovell
Download or read book Effects of Wing Position and Vertical-tail Configuration on Stability and Control Characteristics of a Jet-powered Delta-wing Vertically Rising Airplane Model written by Powell M. Lovell and published by . This book was released on 1957 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation has been conducted to determine the effects of wing position and vertical tail configuration on the stability and control characteristics of a jet-powered delta-wing vertically rising airplane model. A ducted-fan powerplant was used because there was no hot-jet powerplant of sufficiently small size and adequate reliability available. In addition to conventional flap-type control surfaces on the wings and vertical tails, the model had jet-reaction controls provided by movable eyelids at the rear of the tail pipe and by air bled from the main duct and exhausted through movable nozzles near the wing tips. The investigation consisted of flight and force tests of three model configurations: a high wing with a top-mounted vertical tail, a high wing with top- and bottom-mounted vertical tails, and a low wing with the top-mounted vertical tail. The flight tests, which were made in the Langley full-scale tunnel, represented slow constant-altitude transitions from hovering to normal unstalled forward flight.
Book Synopsis The Effects of Mass Distribution on the Low-speed Dynamic Lateral Stability and Control Characteristics of a Model with a 45° Sweptback Wing by : Donald E. Hewes
Download or read book The Effects of Mass Distribution on the Low-speed Dynamic Lateral Stability and Control Characteristics of a Model with a 45° Sweptback Wing written by Donald E. Hewes and published by . This book was released on 1951 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: The trends in lateral stability and control produced variations of the mass distribution were determined for a model with a 45 degree sweptback wing. Calculations were made to correlate the trends determined by theory with those determined from tests of a free-flying dynamic model in the Langley free-flight tunnel.
Book Synopsis Effects of Wing Position and Fuselage Size on the Low-speed Static and Rolling Stability Characteristics of a Delta-wing Model by : Alex Goodman
Download or read book Effects of Wing Position and Fuselage Size on the Low-speed Static and Rolling Stability Characteristics of a Delta-wing Model written by Alex Goodman and published by . This book was released on 1954 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation was made to determine the effects of wing position and fuselage size on the low-speed static and rolling stability characterististics of airplane models having a triangular wing and vertical tail surfaces.
Book Synopsis Effects of Tip Dihedral on Lateral Stability and Control Characteristics as Determined by Tests of a Dynamic Model in the Langley Free-flight Tunnel by : Herman O. Ankenbruck
Download or read book Effects of Tip Dihedral on Lateral Stability and Control Characteristics as Determined by Tests of a Dynamic Model in the Langley Free-flight Tunnel written by Herman O. Ankenbruck and published by . This book was released on 1946 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of tip dihedral on lateral stability and control characteristics were investigated by flight tests of models in the Langley free-flight tunnel. The geometric dihedral angle was varied over a wide range with dihedral breaks at the wing root and at 50 and 75 percent of the semispan outboard of the wing root. The vertical-tail area was varied from 5 to 15 percent of the wing area. The model was flown with various combinations of these variables at lift coefficients from 0.4 to 1.0.
Book Synopsis Static Lateral Characteristics at High Subsonic Speeds of a Complete Airplane Model with a Highly Tapered Wing Having the 0.80 Chord Line Unswept and with Several Tail Configuration by : Kenneth W. Goodson
Download or read book Static Lateral Characteristics at High Subsonic Speeds of a Complete Airplane Model with a Highly Tapered Wing Having the 0.80 Chord Line Unswept and with Several Tail Configuration written by Kenneth W. Goodson and published by . This book was released on 1961 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation was made at high subsonic speeds of a complete model having a highly tapered wing and several tail configurations. The aspect-ratio-3.50 wing had a taper of 0.067 and an unswept 0.80 chord line. The complete model was tested with a wing-chord-plane tail, a T-tail, and a biplane tail (combined T-tail and wing-chord-plane tail). The model was tested in the Langley high-speed 7- by 10-foot tunnel at Mach numbers from 0.60 to 0.92 over a range of angle of attack of about ±20° and a range of sideslip of -15° to 13°. Some data were obtained with the horizontal stabilizer deflected. A few tests were also made with the wing tips clipped to an aspect ratio of 3.00.
Book Synopsis The Effects of Static Margin and Rotational Damping in Pitch on the Longitudinal Stability Characteristics of an Airplane as Determined by Tests of a Model in the NACA Free-flight Tunnel by : John P. Campbell
Download or read book The Effects of Static Margin and Rotational Damping in Pitch on the Longitudinal Stability Characteristics of an Airplane as Determined by Tests of a Model in the NACA Free-flight Tunnel written by John P. Campbell and published by . This book was released on 1944 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summary: The effects of static margin and rotational damping in pitch on the longitudinal stability characteristics of an airplane have been determined by flight tests of a model in the NACA free-flight tunnel. In the investigation, the rotational damping in pitch was varied over a wide range by using horizontal tails that varied in area from 0 to 24 percent of the wing area. A range of static margins from 2 to 16 percent of the mean aerodynamic chord was covered in the tests. For each test condition the model was flown and the longitudinal steadiness characteristics were noted. It was found in the investigation that longitudinal steadiness was affected to a much greater extent by changes in static margin than by changes in rotational damping. The best longitudinal steadiness was noted at large values of static margin. For all values of rotational damping, the steadiness of the model decreased as the static margin was reduced. The model was especially unsteady at low values of static margin (0.03 or less). Reduction in rotational damping had little effect on longitudinal steadiness, except that with low values of static margin (0.03 or less) the longitudinal divergences were sometimes more violent with the tailless (low rotational damping) condition.
Book Synopsis Effect of Wing Loading and Altitude on Lateral Stability and Control Characteristics of an Airplane as Determined by Tests of a Model in the Free-flight Tunnel by : John P. Campbell
Download or read book Effect of Wing Loading and Altitude on Lateral Stability and Control Characteristics of an Airplane as Determined by Tests of a Model in the Free-flight Tunnel written by John P. Campbell and published by . This book was released on 1943 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation to determine the effects of wing loading and altitude on lateral stability and control has been carried out in the NACA free-flight tunnel. The results of the flight tests of the model were correlated with calculated stability boundaries, and an effort was made to determine for each loading condition the airplane configuration that gave the best flight characteristics.
Book Synopsis Lateral-directional Stability Characteristics of a Wing-fuselage Configuration at Angles of Attack Up to 44 ̊ by : William P. Henderson
Download or read book Lateral-directional Stability Characteristics of a Wing-fuselage Configuration at Angles of Attack Up to 44 ̊ written by William P. Henderson and published by . This book was released on 1974 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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