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Study and Design of an Ejection System for VTOL Aircraft: Part I, Volume 3 - Computer Program User's Manual for VTOL Escape System Simulation
Report Number: AFFDL TR 70-1 Part 1 Volume 3
Author(s): Clinkenbeard, I. L.; Cartwright Jr., E. O.
Corporate Author: Vought Aeronautics Division, LTV Aerospace Corporation
Laboratory: Air Force Flight Dynamics Laboratory
Publication Date: 3/1/1970
Pages: 298
Contract: F33615-69-C-1692
Project: 1362
Task: 136203
AD Number: AD0779711
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Stability of Elastic Equilibrium
Report Number: AFFDL TR 70-25
Author(s): Koiter, Warner Tjardus
Corporate Author: Stanford University Department of Aeronautics and Astronautics
Laboratory: Air Force Flight Dynamics Laboratory
Publication Date: 2/1/1970
Pages: 322
Project: 0
Task: 0
AD Number: AD0704124
Photo Enhancement: Not Needed
Abstract Text:
A general theory of elastic stability is presented. In contrast to previous works in the field, the present analysis is augmented by an investigation of the behavior of the buckled structure in the immediate neighborhood of the bifurcation point. This investigation explains why some structures, e.g., a flat plate supported along its edges and subjected to thrust in its plane, are capable of carrying loads considerably above the buckling load, while other structures, e.g., an axially loaded cylindrical shell, collapse at loads far below the theoretical critical load.
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Hypersonic Surface Pressure and Heat Transfer on Slender Bodies in Variable Composition and Nonequilibrium Atmospheres
Report Number: AFFDL TR 70-31
Author(s): Harney, D. J.; Petrie, S. L.
Corporate Author: Ohio Stat University Aeronautical and Astronautical Research Laboratory
Laboratory: Air Force Flight Dynamics Laboratory
Publication Date: 4/1/1970
Pages: 55
Contract: F33615-69-C-1077
Project: 1426
Task: 142604
AD Number: AD0707883
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The "Paper Pilot" - A Digital Computer Program to Predict Pilot Rating for the Hover Task
Report Number: AFFDL TR 70-40
Author(s): James D. Dillow
Corporate Author: Air Force Flight Dynamics Laboartory
Laboratory: Air Force Flight Dynamics Laboartory
Publication Date: 3/1/1971
Pages: 98
Contract: Laboratory Research - No Contract
Project: 8219
Task: 821909
AD Number: AD0724144
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Stress and Deflection Analysis of Mechanically Fastened Joints
Report Number: AFFDL TR 70-49
Author(s): Harry G. Harris; Irving U. Ojalvo; Reginald E. Hooson
Corporate Author: Grumman Aerospace Corporation
Laboratory: Air Force Flight Dynamics Laboratory
Publication Date: 5/1/1970
Pages: 288
Contract: F33615-69-C-1263
Project: 1467
Task: 146704
AD Number: AD0709221
Abstract Text:
The report presents analytical techniques for predicting both the linear and nonlinear stresses and deformations of mechanically fastened joints. The idealization used is a set of stacked parallel plates which transfer planar loads among themselves by means of transverse fasteners. The plates are treated by finite element methods of matrix structural analysis in which each element is assumed to be in plane stress for both elastic and plastic stress states. The fasteners, which are treated by short-beam theory, interact with the plates under the assumption that the plates may be represented by an equivalent elastic foundation. Application of the present analytical techniques was made to a variety of problems including: the combined elastic-plastic behavior of plates with unloaded holes, the load-deflection behavior of single-fastener joints, the residual stress distributions in plates with squeeze rivets, the effect of fastener bending and shear deformation on the bearing stress distribution between the fastener and the plate, and the prediction of the fatigue life of typical mechanically fastened joints. In all these cases, comparisons with test results generally gave very good correlation. For the range of parameters studied, the effects of hole clearance and fastener interference and geometric configuration appear to play the dominant roles in determining the stress distribution and hence, the fatigue life of mechanically fastened joints.
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System Description and Performance Data for the USAF/CAL Variable Stability T-33 Airplane
Report Number: AFFDL TR 70-71
Author(s): Hall, G. Warren; Huber, Ronald W.
Corporate Author: Cornell Aeronautical Lab Inc Buffalo N Y
Laboratory: Air Force Flight Dynamics Laboratory
Publication Date: 8/1/1970
Pages: 332
Features: + Foldout(s)
Contract: F33615-69-C-1664
Project: 8219
Task: 821905
AD Number: AD0876626
Photo Enhancement: Complete
Abstract Text:
The USAF/CAL variable stability T-33 airplane is a jet trainer which has been extensively modified for use as a research vehicle. A response-feedback system allows the normal T-33 derivatives to be augmented so that handling qualities of existing airplanes, future airplanes, or hypothetical configurations may be simulated in flight or in a fixed-base ground simulator. The report attempts to provide an updated functional description of the variable stability T-33. The information is presented for setting up a simulation program and for performing calibration procedures. A brief description of the equipment and airplane systems is also included.
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An In-Flight Invesitgation to Develop Control System Design Criteria for Fighter Airplanes
Report Number: AFFDL TR 70-74 Volume 1
Author(s): T. Peter Neal; Roger E. Smith
Corporate Author: Cornell Aeronautical Laboratory, Inc.
Laboratory: Air Force Flight Dynamics Laboratory
Publication Date: 12/1/1970
Pages: 148
Contract: F33615-69-C-1664
Project: 8219
Task: 821905
AD Number: AD0880426
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Design, Fabrication, and Flight Testing of Self-Organizing Flight Control System
Report Number: AFFDL TR 70-77
Author(s): Barron, Roger L.
Corporate Author: Adaptronics, Inc. McLean, Virginia
Laboratory: Air Force Flight Dynamics Laboratory
Publication Date: 6/1/1970
Pages: 230
Features: + Diagram(s) + Foldout(s) + Graph(s) + Photo(s) + Table(s)
Contract: AF 33(615)-5141
Project: None Given
Task: None Given
AD Number: AD0872609
Photo Enhancement: Complete
Abstract Text:
The report summarizes design characteristics, simulations, bench tests, and flight tests of an elementary self-organizing controller (SOC) for the pitch axis of the F-101B aircraft. This controller was flown with a cockpit electric side stick in a pseudo-fly-by-wire configuration, that is, as a fly-by-wire system with a normally disengaged mechanical backup. Blended pitch-rate and forward normal acceleration feedback (C*) and stabilator position feedback were the primary return signals used by the SOC. An optional Mach Trim loop was also investigated. The SOC, which incorporated unique modulated-noise circuits to minimize adverse effects of control-loop nonlinearities, had full authority over the aircraft stabilator within the inherent rate and position limits of the actuator. 32 test flights were conducted with the SOC, constituting a total flying time of approximately 40 hours. These flights encompassed nearly the entire performance envelope of the F-101B and included piloting tasks representative of missions flown with current fighter aircraft. The Air Force pilots rated the SOC between A1 and A2 on the CAL Revised Pilot Rating Scale. There were no in-flight malfunctions of the SOC equipment.
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Integrated Information Presentation and Control System Study. Volume III. Degraded Mode Analysis.
Report Number: AFFDL TR 70-79 Volume 3
Author(s): Premselaar, S. J.; Hatcher, J. G.; Richardson, R. L.; Kinnamen, R. L.; Smith, W. D.
Corporate Author: Boeing Co Seattle Wash Military Aircraft Systems Div
Laboratory: Air Force Flight Dynamics Laboratory
Publication Date: 6/1/1971
Pages: 160
Contract: F33615-70-C-1832
Project: 6190
Task: 619021
AD Number: AD0740435
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Background Information and User Guide for MIL-F-83300-Military Specification - Flying Qualities of Piloted V/STOL Aircraft
Report Number: AFFDL TR 70-88
Author(s): Charles R. Chalk; David L. Key; John Kroll, Jr.; Richard Wasserman; Robert C. Radford
Corporate Author: Cornell Aeronautical Laboratory, Inc.
Laboratory: Air Force Flight Dynamics Laboratory
Publication Date: 3/1/1971
Pages: 468
Contract: AF 33(615)-3736
Project: 698DC
Task: None Given
AD Number: AD0884439
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The Use of Reflectors to Shape a Sound Field
Report Number: AFFDL TR 70-97
Author(s): Jerome E. Manning; James A. Moore
Corporate Author: Bolt, Beranek and Newman, Inc.
Laboratory: Air Force Flight Dynamics Laboratory
Publication Date: 3/1/1971
Pages: 126
Contract: F33615-69-C-1384
Project: 4437
Task: 443701
AD Number: AD0883946
Abstract Text:
The use of reflectors to control the distribution of the Sound Pressure Level (SPL) in sonic test chambers is investigated. The goal is to obtain more realistic SPL distributions on the test object. It is concluded that the use of reflectors will not increase the SPL on a test object unless the reflector and test object are in the near field of the sound generators. The results of the study are applied to the Air Force Flight Dynamics Laboratory's (AFFDL) Sonic Fatigue Facility at Wright-Patterson Air Force Base. Design charts are presented that relate predicted SPL distributions to reflector size and positioning.
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Investigation of Measuring System Requirements for Instrument Low Visibility Approach
Report Number: AFFDL TR 70-102
Author(s): Dunstan Graham; Warren F. Clement; Lee Gregor Hofmann
Corporate Author: Systems Technology, Inc.
Laboratory: Air Force Flight Dynamics Laboartory
Publication Date: 2/1/1971
Pages: 218
Contract: F33615-69-C-1904
Project: None Given
Task: None Given
AD Number: AD0722773
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A Discrete, Stochastic, Optimal Control Model of the Human Operator in a Closed-Loop Tracking Task
Report Number: AFFDL TR 70-129
Author(s): Harvey M. Paskin
Corporate Author: Air Force Flight Dynamics Laboratory
Laboratory: Air Force Flight Dynamics Laboratory
Publication Date: 11/1/1970
Pages: 122
Contract: Laboratory Research - No Contract
Project: None Given
Task: None Given
AD Number: AD0719755
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Airplane Flying Characteristics in Turbulence
Report Number: AFFDL TR 70-143
Author(s): E. D. Onstott; E. P. Salmon
Corporate Author: Northrop Corporation
Laboratory: Air Force Flight Dynamics Laboartory
Publication Date: 2/1/1971
Pages: 190
Contract: F33615-70-C-1156
Project: 8219
Task: 821904
AD Number: AD0722855
Photo Enhancement: Complete
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In-Flight Investigation of Lateral-Directional Dynamics for the Landing Approach
Report Number: AFFDL TR 70-145
Author(s): Hall, G. Warren; Boothe, Edward M.
Corporate Author: Cornell Aeronautical Laboratory Inc., Buffalo, New York
Laboratory: Air Force Flight Dynamics Laboartory
Publication Date: 10/1/1970
Pages: 288
Contract: F33615-69-C-1664
Project: 8219
Task: 821905
AD Number: AD0715317
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A Design Procedure and Handling-Quality Criteria for Lateral-Directional Flight Control Systems
Report Number: AFFDL TR 70-152
Author(s): Gunter Stein; Allen H. Henke
Corporate Author: Honeywell, Inc.
Laboratory: Air Force Flight Dynamics Laboartory
Publication Date: 5/1/1971
Pages: 274
Contract: F33615-70-C-1190
Project: 8219
Task: None Given
AD Number: AD0726584
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A Wind Tunnel Investigation of Jets Exhausting into a Crossflow
Report Number: AFFDL TR 70-154 Volume 1
Author(s): L. B. Fricke; P. T. Wooler; H. Ziegler
Corporate Author: Northrop Corporation, Aircraft Division
Laboratory: Air Force Flight Dynamics Laboratory
Publication Date: 12/1/1970
Pages: 447
Contract: F33615-69-C-1602
Project: 698BT
Task: None Given
AD Number: AD0718122
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A Wind Tunnel Investigation of Jets Exhausting into a Crossflow
Report Number: AFFDL TR 70-154 Volume 2
Author(s): L. B. Fricke; P. T. Wooler; H. Ziegler
Corporate Author: Northrop Corporation
Laboratory: Air Force Flight Dynamics Laboratory
Publication Date: 12/1/1970
Pages: 508
Contract: F33615-69-C-1602
Project: 698BT
Task: None Given
AD Number: AD0720232
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A Wind Tunnel Investigation of Jets Exhausting into a Crossflow
Report Number: AFFDL TR 70-154 Volume 3
Author(s): L. B. Fricke; P/ T. Wooler; H. Ziegler
Corporate Author: Northrop Corporation
Laboratory: Air Force Flight Dynamics Laboartory
Publication Date: 12/1/1970
Pages: 504
Contract: F33615-69-C-1602
Project: 698BT
Task: None Given
AD Number: AD0720233
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A Wind Tunnel Investigation of Jets Exhausting into a Crossflow: Volume IV: Additional Data for the Three-Jet Configuration
Report Number: AFFDL TR 70-154 Volume 4
Author(s): L. B. Fricke; P. T. Wooler; H. Ziegler
Corporate Author: Northrop Corporation, Aircraft Division
Laboratory: Air Force Flight Dynamics Laboratory
Publication Date: 12/1/1970
Pages: 200
Contract: F33615-69-C-1602
Project: 698BT
Task: None Given
AD Number: AD0718123
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Validation of the Flying Qualities of MIL-F-008785A
Report Number: AFFDL TR 70-155
Author(s): C. C. Brady; J. Hodgkinson
Corporate Author: McDonnell Aircraft Company
Laboratory: Air Force Flight Dynamics Laboratory
Publication Date: 1/1/1971
Pages: 528
Contract: F33615-70-C-1079
Project: 8219
Task: 821905
AD Number: AD0881743
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A Theoretical Investigation of a Circular Lifting Jet in a Cross-Flowing Mainstream
Report Number: AFFDL TR 70-170
Author(s): J. E. Hackett; H. R. Miller
Corporate Author: Lockheed-Georgia Company
Laboratory: Air Force Flight Dynamics Laboratory
Publication Date: 1/1/1971
Pages: 60
Contract: F33615-69-C-1753
Project: 6169BT
Task: None Given
AD Number: AD0718121
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