Ejector-powered engine simulators for small-scale wind tunnel modelsof high performance aircraft

1978 ◽  
Author(s):  
R. MATZ ◽  
G. SMITH
Keyword(s):  
Wind Tunnel ◽  
High Performance ◽  
Small Scale ◽  
High Performance Aircraft

A High Performance Aircraft Wind Tunnel Test Using Response Surface Methodologies

2005 ◽  
Author(s):  
Drew Landman ◽  
Jim Simpson ◽  
Raffaello Mariani ◽  
Francisco Ortiz ◽  
Colin Britcher
Keyword(s):  
Wind Tunnel ◽  
Response Surface ◽  
High Performance ◽  
Wind Tunnel Test ◽  
High Performance Aircraft

scholarly journals Some Observations on Shape Factors Influencing Aerodynamic Lift on Passenger Cars

Fluids ◽  
2021 ◽  
Vol 6 (1) ◽  
pp. 44
Author(s):  
Jeff Howell ◽  
Steve Windsor ◽  
Martin Passmore
Keyword(s):  
Wind Tunnel ◽  
High Performance ◽  
Aerodynamic Drag ◽  
Small Scale ◽  
Shape Features ◽  
Passenger Cars ◽  
Shape Factors ◽  
Front End ◽  
Factors Influencing ◽  
Aerodynamic Lift

The car aerodynamicist developing passenger cars is primarily interested in reducing aerodynamic drag. Considerably less attention is paid to the lift characteristics except in the case of high-performance cars. Lift, however, can have an effect on both performance and stability, even at moderate speeds. In this paper, the basic shape features which affect lift and the lift distribution, as determined from the axle loads, are examined from wind tunnel tests on various small-scale bodies representing passenger cars. In most cases, the effects of yaw are also considered. The front-end shape is found to have very little effect on overall lift, although it can influence the lift distribution. The shape of the rear end of the car, however, is shown to be highly influential on the lift. The add-on components and other features can have a significant effect on the lift characteristics of real passenger cars and are briefly discussed. The increase in lift at yaw is, surprisingly, almost independent of shape, as shown for the simple bodies. This characteristic is less pronounced on real passenger cars but lift increase at yaw is shown to rise with vehicle length.

Individual Differences in Attention and the Prediction of Flight Criteria

1971 ◽  
Vol 33 (3_suppl) ◽  
pp. 1335-1342 ◽  
Author(s):  
Daniel Gopher ◽  
Daniel Kahneman
Keyword(s):  
Individual Differences ◽  
Selective Attention ◽  
Dichotic Listening ◽  
High Performance ◽  
The Other ◽  
Listening Test ◽  
Transient Instability ◽  
High Performance Aircraft

A dichotic listening test was constructed which requires S to monitor a relevant message and to ignore a concurrent message presented to the other ear. The test has promising validity for predicting different criteria of proficiency in flying high-performance aircraft. An analysis of the most valid type of errors suggests that a change in an existing orientation is accompanied by a transient instability of selective attention. Most errors in continuous attention are omissions, which indicate a failure of the listening set. Intrusions, which indicate a failure of selectivity, are rare and their frequency is not correlated to flight criteria.

Tracking-Task Performance during Heat Stress Simulating Cockpit Conditions in High-Performance Aircraft

Ergonomics ◽  
1979 ◽  
Vol 22 (5) ◽  
pp. 549-555 ◽  
Author(s):  
SARAH A. NUNNELEY ◽  
PATRICK J. DOWD ◽  
LOREN G. MYHRE ◽  
RICHARD F. STRIBLEY ◽  
RICHARD C. MCNEE
Keyword(s):  
Heat Stress ◽  
Task Performance ◽  
High Performance ◽  
Tracking Task ◽  
High Performance Aircraft

scholarly journals The Application of a Computerized Cognitive Screening Tool in Naval Aviators

2021 ◽  
Vol 186 (Supplement_1) ◽  
pp. 198-204
Author(s):  
Shawnna M Chee ◽  
Veronica E Bigornia ◽  
Daniel L Logsdon
Keyword(s):  
Repeated Measures ◽  
High Performance ◽  
Mixed Model ◽  
Screening Tool ◽  
Federal Aviation Administration ◽  
Control Group ◽  
Operational Environment ◽  
Desktop Computer ◽  
Naval Aviators ◽  
High Performance Aircraft

ABSTRACT Introduction The CogScreen-Aeromedical Edition (CogScreen-AE) is a computerized neurocognitive assessment screening tool developed for the Federal Aviation Administration as a rapid, reliable means of measuring neurocognitive deficiency in civilian airline pilots. This has potential use and assessment of military aviators flying high performance aircraft under extreme conditions; however, no data exist on how the dynamic flight environment affects CogScreen-AE scores. The objectives of this study were to determine what changes in performance on CogScreen-AE scores are seen post-flight in Naval Aviators flying high performance aircraft and to determine the potential for use of CogScreen-AE as a screening tool to evaluate degree of impairment, recovery from neurological illness, and return to duty status of a military aviator. Materials and Methods Repeated measures, within-subjects experimental design with three CogScreen-AE administrations—introduction session, preflight session, and postflight session. An experimental study group was exposed to dynamic flight between preflight and postflight sessions, while a control group flew a desktop computer flight simulator between sessions. Data were analyzed by mixed model ANOVA using Statistical Package for the Social Sciences to compare CogScreen-AE pre- and postflight performance on 5 composite scores of variables that account for 45% of the variance in predicting flight performance. Results Preflight versus postflight scores demonstrated no significant differences in performance attributable to flight in high performance aircraft. Conclusions The CogScreen-AE performance is shown to be consistent preflight to post-flight. These data show that CogScreen-AE may be a reliable clinical instrument for assessing aviators’ cognitive function with regard to return to flight duty decision-making. We anticipate future work in determining how CogScreen-AE can be utilized in the operational environment and documenting recovery from neurologic illness.

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