Results 101 to 110 of about 10,699 (233)

Operationally Efficient Propulsion System Study (OEPSS) data book. Volume 4: OEPSS design concepts [PDF]

open access: yes
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
Farhangi, Shahram   +2 more
core   +1 more source

Orbital Maneuvering system design evolution [PDF]

open access: yes, 1985
Preliminary design considerations and changes made in the baseline space shuttle orbital maneuvering system (OMS) to reduce cost and weight are detailed.
Gibson, C., Humphries, C.
core   +1 more source

A Reliable Method for Predicting the Specific Impulse of Chemical Propellants

open access: yesJournal of Aerospace Technology and Management, 2018
The specific impulse (Isp) is an important performance parameter that describes energy efficiency of propellant combustion and is intimately related to the rocket engine thrust.
Dany Frem
doaj  

Space Chemical Propulsion Test Facilities at NASA Lewis Research Center [PDF]

open access: yes
The NASA Lewis Research Center, located in Cleveland, Ohio, has a number of space chemical propulsion test facilities which constitute a significant national space testing resource.
Calfo, Frederick D., Urasek, Donald C.
core   +1 more source

Radiation analysis of various vehicle and payload configurations for the reusable nuclear shuttle [PDF]

open access: yes, 1972
Radiation analyses were performed and shielding weight requirements were estimated for various candidate vehicle and payload configurations for use with the reusable nuclear shuttle. The analyses included both point kernel and Monte Carlo approaches. The
Preeg, W. E.
core   +1 more source

The hard start phenomena in hypergolic engines. Volume 1: Bibliography [PDF]

open access: yes
A bibliography of reports pertaining to the hard start phenomenon in attitude control rocket engines on Apollo spacecraft is presented. Some of the subjects discussed are; (1) combustion of hydrazine, (2) one dimensional theory of liquid fuel rocket ...
Miron, Y., Perlee, H. E.
core   +1 more source

Photographic investigation of propellant stream behavior in a firing rocket engine, volume I Technical summary report, 1 Aug. 1964 - 28 Feb. 1966 [PDF]

open access: yes
Photographic study to obtain injection and combustion patterns of F-1 rocket engine injector ...
Eulner, R. N.   +2 more
core   +2 more sources

AN OPTIMIZED HYBRID ROCKET MOTOR FOR THE SARA PLATFORM REENTRY SYSTEM DOI 10.5028/jatm.2012.04032312

open access: yesJournal of Aerospace Technology and Management, 2012
This paper has described a system design process, based on a multidisciplinary optimization technique, of a conceptual optimized hybrid propellant rocket motor. The proposed engine could be a technological option for the reentry maneuvering system of the
Pedro Luiz Kaled Da Cás   +3 more
doaj  

Space shuttle system program definition. Volume 1: Executive summary [PDF]

open access: yes
A study for the selection of a low cost shuttle system for design and development was conducted. The objective of the final study was to examine and penetrate the major technical and cost issues affecting the choice of the following: (1) liquid ...

core   +1 more source

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