Scientific and Technical Aerospace Reports PDF Download
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 594
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Book Description
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 594
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Book Description
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1016
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Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1012
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Author:
Publisher:
ISBN:
Category : Research
Languages : en
Pages : 1132
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Book Description
Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1244
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Author: National Aeronaut Administration (Nasa)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722679927
Category :
Languages : en
Pages : 54
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Book Description
The study was initiated to identify operations problems and cost drivers for current propulsion systems and to identify technology and design approaches to increase the operational efficiency and reduce operations costs for future propulsion systems. To provide readily usable data for the Advanced Launch System (ALS) program, the results of the Operationally Efficient Propulsion System Study (OEPSS) were organized into a series of OEPSS Data Books as follows: Volume 1, Generic Ground Operations Data; Volume 2, Ground Operations Problems; Volume 3, Operations Technology; Volume 4, OEPSS Design Concepts; and Volume 5, OEPSS Final Review Briefing, which summarizes the activities and results of the study. Summarized here are the salient results of the first year. A synopsis of each volume listed above is presented. Wong, George S. Unspecified Center...
Author: Albert J. Simonson
Publisher:
ISBN:
Category : Aerodynamics, Supersonic
Languages : en
Pages : 32
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Book Description
"An investigation was conducted in order to evaluate the static thrust augmentation attainable through the use of a rocket-ejector system with a heated supersonic primary jet. This system consisted of a cylindrical mixing tube in conjunction with a supersonic nozzle having an expansion ratio of 15 to 1. A hydrogen peroxide gas generator was used to provide heated nozzle flow. An ejector with a bellmouthed inlet provided thrust augmentation up to about 18 percent of the primary rocket thrust, whereas the use of a blunt-lip inlet with elliptical profile provided augmentation up to 9 percent. Axial withdrawal of the rocket nozzle from the ejector provided small gains in thrust augmentation."--P.[1]
Author: National Aeronaut Administration (Nasa)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722679996
Category :
Languages : en
Pages : 100
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Book Description
This study was initiated to identify operations problems and cost drivers for current propulsion systems and to identify technology and design approaches to increase the operational efficiency and reduce operations costs for future propulsion systems. To provide readily usable data for the Advanced Launch System (ALS) program, the results of the OEPSS study have been organized into a series of OEPSS Data Books. This volume describes three propulsion concepts that will simplify the propulsion system design and significantly reduce operational requirements. The concepts include: (1) a fully integrated, booster propulsion module concept for the ALS that avoids the complex system created by using autonomous engines with numerous artificial interfaces; (2) an LOX tank aft concept which avoids potentially dangerous geysering in long LOX propellant lines; and (3) an air augmented, rocket engine nozzle afterburning propulsion concept that will significantly reduce LOX propellant requirements, reduce vehicle size and simplify ground operations and ground support equipment and facilities. Wong, George S. and Ziese, James M. and Farhangi, Shahram Unspecified Center...
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722461638
Category :
Languages : en
Pages : 42
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Book Description
The study was initiated to identify operational problems and cost drivers for current propulsion systems and to identify technology and design approaches to increase the operational efficiency and reduce operations costs for future propulsion systems. To provide readily usable data for the Advanced Launch System (ALS) program, the results of the OEPSS study were organized into a series of OEPSS Data Books. This volume describes operations technologies that will enhance operational efficiency of propulsion systems. A total of 15 operations technologies were identified that will eliminate or mitigate operations problems described in Volume 2. A recommended development plan is presented for eight promising technologies that will simplify the propulsion system and reduce operational requirements. Vilja, John O. Unspecified Center NAS10-11568...
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722461683
Category :
Languages : en
Pages : 30
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Book Description
A design tool of figure of merit was developed that allows the operability of a propulsion system design to be measured. This Launch Operations Index (LOI) relates Operations Efficiency to System Complexity. The figure of Merit can be used by conceptual designers to compare different propulsion system designs based on their impact on launch operations. The LOI will improve the design process by making sure direct launch operations experience is a necessary feedback to the design process. Ziese, James M. Kennedy Space Center NAS10-11568...
