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  • 1
    Publication Date: 2019-07-27
    Description: This paper summarizes a study that examines the technical, economic, and environmental aspects of remotely piloted vehicles (RPVs) in the civil environment. A market survey was conducted in which 35 civil applications of RPVs were identified. For a number of these uses, vehicle and system concepts were defined, benefit and cost comparisons were made with present methods, and the influence of safety and environmental implications was assessed. The results suggest a sizable potential demand for the use of RPVs in the civil sector, and some of the applications show promising cost savings over established methods. A focussed technology effort could provide the safety assurances needed for routine civilian operation of RPVs.
    Keywords: AIRCRAFT DESIGN, TESTING AND PERFORMANCE
    Type: AIAA PAPER 76-939 , Aircraft Systems and Technology Meeting; Sept. 27-29, 1976; Dallas, TX
    Format: text
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  • 2
    Publication Date: 2019-05-11
    Description: Study of delta-wing configurations for supersonic transport application and their relation to aircraft performance
    Keywords: AIRCRAFT
    Type: IAS PAPER 63-5
    Format: text
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  • 3
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    Unknown
    In:  Other Sources
    Publication Date: 2019-07-27
    Description: A summary of oblique-wing technology programs, including system studies and experimental activities, is presented. Oblique-wing civil transports were studied and compared with conventional configurations at design cruise Mach numbers of 0.95 and 1.2. Studies of military configurations employing oblique-wing technology considered aircraft concepts, remotely piloted vehicles, and a cruise missile. Experimental activities included wind-tunnel tests of high and low aspect ratio oblique wings; flight tests are planned using unmanned and manned vehicles. The research program suggests that oblique-wing technology offers improved performance over conventional concepts for aircraft operating in the transonic speed range.
    Keywords: AIRCRAFT DESIGN, TESTING AND PERFORMANCE
    Type: AIAA PAPER 76-943 , Aircraft Systems and Technology Meeting; Sept. 27-29, 1976; Dallas, TX
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  • 4
    Publication Date: 2019-06-27
    Description: A computerized aircraft synthesis program has been used to assess the effects of various vehicle and mission parameters on the performance of an oblique, all-wing, remotely piloted vehicle (RPV) for the highly maneuverable, air-to-air combat role. The study mission consists of an outbound cruise, an acceleration phase, a series of subsonic and supersonic turns, and a return cruise. The results are presented in terms of both the required vehicle weight to accomplish this mission and the combat effectiveness as measured by turning and acceleration capability. This report describes the synthesis program, the mission, the vehicle, and results from sensitivity studies. An optimization process has been used to establish the nominal RPV configuration of the oblique, all-wing concept for the specified mission. In comparison to a previously studied conventional wing-body canard design for the same mission, this oblique, all-wing nominal vehicle is lighter in weight and has higher performance.
    Keywords: AIRCRAFT
    Type: NASA-TN-D-7731 , A-5338
    Format: application/pdf
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  • 5
    Publication Date: 2019-06-27
    Description: Aerodynamic characteristics of a model designed to represent an all body, hypersonic cruise aircraft are presented for Mach numbers from 0.65 to 10.6. The configuration had a delta planform with an elliptic cone forebody and an afterbody of elliptic cross section. Detailed effects of varying angle of attack (-2 to +15 deg), angle of sideslip (-2 to +8 deg), Mach number, and configuration buildup were considered. In addition, the effectiveness of horizontal tail, vertical tail, and canard stabilizing and control surfaces was investigated. The results indicate that all configurations were longitudinally stable near maximum lift drag ratio. The configurations with vertical tails were directionally stable at all angles of attack. Trim penalties were small at hypersonic speeds for a center of gravity location representative of the airplane, but because of the large rearward travel of the aerodynamic center, trim penalties were severe at transonic Mach numbers.
    Keywords: AIRCRAFT
    Type: NASA-TN-D-6577 , A-4017
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  • 6
    Publication Date: 2019-06-27
    Description: Flight constraints and aerodynamic characteristics of hypersonic research aircraft
    Keywords: AIRCRAFT
    Type: NASA-TM-X-2222 , A-3567
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  • 7
    Publication Date: 2019-06-27
    Description: Longitudinal aerodynamic stability of three hypersonic aircraft at Mach numbers from 0.065 to 10.70
    Keywords: AERODYNAMICS
    Type: NASA-TM-X-2113
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  • 8
    Publication Date: 2016-06-07
    Description: Existing remotely piloted vehicle application programs are described along with the technology of several important subsystems and the potential vehicle uses and operational concepts. Regulatory constraints and present and future study activities that may lead to demonstration and then operational programs are discussed.
    Keywords: MAN/SYSTEM TECHNOLOGY AND LIFE SUPPORT
    Type: JPL The 2nd Conf. on Remotely Manned Systems (RMS); p 47-48
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  • 9
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    Unknown
    In:  Other Sources
    Publication Date: 2019-07-13
    Description: An overview of an ongoing study of civil applications of Remotely Piloted Vehicles (RPVs) is presented, including a summation of results to date and the status of work yet to be completed. The intent of the study is to examine the total technical, economic, and environmental impact of RPVs in the civil environment in order to identify and assess the technological effort required to bring these vehicles to realization. The paper describes a market survey in which some 35 civil applications of RPVs have been defined and categorized into groups which have similar mission requirements. From this broad analysis of many potential uses, a smaller number of promising and representative applications have been selected for more in-depth analysis. Using one or two of these applications as specific examples, the paper briefly describes system performance requirements and vehicle concepts, and compares the benefits and costs with those of present methods. The paper also reports on the status of other work such as subsystem concepts, assessment of the technology, and the influence of safety and environmental considerations on these future civil RPV systems.
    Keywords: AERONAUTICS (GENERAL)
    Type: National Association for Remotely Piloted Vehicles, Annual Symposium; May 03, 1976 - May 05, 1976; Dayton, OH
    Format: text
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  • 10
    Publication Date: 2019-06-27
    Description: A computerized synthesis program has been used to assess the effects of various vehicle and mission parameters on the performance of a highly maneuverable remotely piloted vehicle (RPV) for the air-to-air combat role. The configuration used in the study is a trapezoidal-wing and body concept, with forward-mounted stabilizing and control surfaces. The study mission consists of an outbound cruise, an acceleration phase, a series of subsonic and supersonic turns, and a return cruise. Performance is evaluated in terms of both the required vehicle weight to accomplish this mission and combat effectiveness as measured by turning and acceleration capability. The report describes the synthesis program, the mission, the vehicle, and the results of sensitivity and trade studies.
    Keywords: AIRCRAFT
    Type: NASA-TN-D-7551 , A-5157
    Format: application/pdf
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