Download or read book Analysis of Lateral directional Stability Characteristics of a Twin jet Fighter Airplane at High Angles of Attack written by Joseph R. Chambers and published by . This book was released on 1969 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Jet fighter aircraft lateral directional stability at high angles of attack.
Download or read book Analysis of Lateral directional Stability Characteristics of a Twin jet Fighter Airplane at High Angles of Attack written by Joseph R. Chambers and published by . This book was released on 1969 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Static Force Tests of a Model of a Twin jet Fighter Airplane for Angles of Attack from 100 to 1100 and Sideslip Angles from 400 to 400 written by Ernie L. Anglin and published by . This book was released on 1971 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: Static force tests of model of twin jet fighter aircraft at various angles of attack and sideslip angles to obtain data for theoretical spin studies.
Download or read book NASA Technical Note written by and published by . This book was released on 1975 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Paper written by and published by . This book was released on 1992 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Paper written by United States. National Aeronautics and Space Administration and published by . This book was released on 1992 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Memorandum written by and published by . This book was released on 1990 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analytical Interpretation on Lateral directional Stability and Controllability of High Angle of attack Reentry Flight written by Koichi Yonemoto and published by . This book was released on 1988 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since winged space vehicles perform unpowered hypersonic reentry flights at very high angle-of-attack avoiding excessive heat loads, the lateral/directional stability and controllability are the critical aerodynamic design subjects to accomplish desired trajectory and to meet cross range requirement. Over past years so-called dynamic directional stability parameter Cn(beta)dyn and lateral control divergence parameter LCDP (or AADP) have been proposed not only as preliminary but also practical aerodynamic design criteria. Although considerable discussions have been made on the lateral stability and controllability problems, these investigations are mainly based on six degree-of-freedom flight simulations using computers. There have been not enough interpretations on the lateral flight mechanism from the analytical point of view. This paper reviews the lateral stability and controllability criteria, and presents analytical considerations on the lateral control divergence mechanism using linear transfer function method. It is clarified that Cn(beta)dyn plays a role of necessary stability condition for the open-loop airframe dynamics. AADP is a necessary stability condition for the closed-loop system of bank angle control by aileron alone. If AADP is negative, the vehicle behave to have unfavorable adverse effectiveness of aileron control. This mechanism of the uncontrollability can be interpreted as follows. At high angle-of-attack, rolling motion induced by aileron control causes rapid increase of side-slip angle. If the vertical tail does not have enough restoring force about yawing axis to suppress the side-slip angle, the aileron control results in an adverse effectiveness due to the counter rolling moment caused by dihedral effect. Rudder coordination can make up for the insufficient tail restoring force. This necessary controllability condition is represented by LCDP. This paper shows that the zero loci of the multi-loop control transfer function indicate the stability of the bank angle control with rudder coordination and has equivalent meaning to that of LCDP. Further study yields an interesting result that an additional stability relation exists between Cn(beta)dyn and LCDP. This stability characteristics is examined on an actual fighter aircraft and the present analysis agrees well with the actual simulator test result. Based on the present study, a synthesis of simple lateral multi-loop controller is proposed for practical application of the reentry vehicles flying at very high angle-of-attack. Consequently flight simulations are performed in order to verify the lateral controller.
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on with total page 1388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1970 with total page 1348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1970 with total page 284 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 1992 with total page 1572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1969 with total page 1678 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Performance Stability Dynamics and Control of Airplanes written by Bandu N. Pamadi and published by AIAA. This book was released on 2004 with total page 810 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dynamic Stability Derivatives of a Twin jet Fighter Model for Angles of Attack from 10 to 110 written by Sue B. Grafton and published by . This book was released on 1971 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: A low-speed investigation was conducted to determine the dynamic stability derivatives in pitch, roll, and yaw over an angle-of-attack range of -10 [degree] to 110 [degree] for a twin-jet swept-wing fighter model. Several frequencies and amplitudes were investigated to determine the effects of these variables on the stability derivatives. The effect of the vertical and horizontal tail, and horizontal-tail incidence on the derivatives was also evaluated. The results indicate that the model exhibited stable values of damping in pitch over the entire angle-of-attack range, but marked reductions of damping in roll were measured at the stall, and unstable values of damping in yaw were present for the very high angles of attack associated with flat spins. Either removal of the horizontal or vertical tail or full up deflection of the horizontal tail eliminated the unstable characteristics of the damping-in-yaw derivatives.
Download or read book A Selected Listing of NASA Scientific and Technical Reports written by United States. National Aeronautics and Space Administration. Scientific and Technical Information Division and published by . This book was released on 1970 with total page 962 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation of the Dynamic Lateral Stability and Control Characteristics of a Model of a Fighter Airplane Without a Horizontal Tail and Equipped with Either Single Or Twin Vertical Tails written by John W. Draper and published by . This book was released on 1949 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
