Status of a five-centimeter-diameter ion thruster technology program
Ion thrustor technology and subsystem development program status, describing design and performance characteristics
Banks, B. A.↗
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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Hybrid thermocouple development program - A status report
Hybrid thermocouple with PbTe and SiGe thermoelectric materials, discussing development status and performance prediction
Bifano, W. J.↗
Status of advanced Rankine power conversion technology
Rankine cycle turboelectric nuclear space power conversion system with liquid K as working fluid, discussing current technology status
Gutstein, M. U.↗
Status of the 2- to 15-kWe Brayton power system and potential gains from component improvements
Brayton cycle 2-15 kW power system for space application and potential gains from component improvements, discussing current status
Klann, J. L.↗
Continued advancement of the programming language HAL to an operational status
The continued advancement of the programming language HAL to operational status is reported. It is demonstrated that the compiler itself can be written in HAL. A HAL-in-HAL experiment proves conclusively that HAL can be used successfully as a compiler implementation tool.
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Shuttle program status
The status of the space shuttle phase of the space transportation system is reviewed by the use of a series of graphs and slides. Briefly described are: space shuttle capabilities and configurations; launch vehicles; mission profiles; recovery concepts; cost comparisons; program schedules; and benefits of reusable space transportation system.
Andrews, E. P.↗
Status of Langley studies of aerodynamics and interference effects of tandem launch vehicles
Some of the aerodynamic and interference effects measured from wind-tunnel tests of three fully reusable space shuttle configurations at transonic and low-supersonic speeds are presented, and the status is given of an assessment of the analytical approach to date. The three configurations tested were a low-fineness-ratio booster combined in tandem with a delta-wing orbiter, designated the "low-fineness-ratio configuration,' and a phase B shuttle configuration consisting of the delta-wing orbiter and high-fineness-ratio booster, designated the "stage-arrangement configuration,' arranged in tandem and in parallel. The force measurements obtained at a Mach number of 1.5 for the low-fineness-ratio configuration were representative of the transonic and low-supersonic speed ranges where the interference effects are predominant and were used for comparison with values calculated at the same Mach number. This comparison is the basis for a preliminary assessment of the initial application of the analytical approach.
Scallion, W. I.↗
Review of status and potential of tungsten-wire: Superalloy composites for advanced gas turbine engine blades
The current status of development of refractory-wire-superalloy composites and the potential for their application to turbine blades in land-based power generation and advanced aircraft engines are reviewed. The data indicate that refractory-wire-superalloy composites have application as turbine blades at temperatures of 2200 F and above.
Signorelli, R. A.↗
Status and availability of FCC hardware
The source availability of FCC and/or FCC connectors was surveyed. The results for the following areas are presented: (1) cost of FCC versus standard round cable, (2) qualification status, (3) size of wire available in FCC, (4) availability of hermetic connectors for FCC, (5) conversion from flat cable to round cable and visa versa, (6) availability of shielded flat cable for RF usage, (7) termination techniques, and (8) repair techniques.
Romriell, G. K.↗
NERVA nozzle design status report
The results of the design analyses are presented along with the status of the attained design maturity of the structural elements of the nozzle jacket and various aspects of the coolant passages. The design analyses relating to the nozzle shell were based on design allowables as supported by cursory values obtained from ARMCO 22-13-5 nozzle forgings. The major aspects of the coolant passages considered include: low cycle thermal fatigue, ability to operate at 4500 R gas temperature, tube buckling, and susceptibility to erosion. The scope of the analysis is limited to processes leading to reliability assessments of failure mechanisms.
Williams, J. J.↗
Early childhood education: Status trends, and issues related to electronic delivery
The status of, and trends and issues within, early childhood education which are related to the possibilities of electronic delivery of educational service are considered in a broader investigation of the role of large scale, satellite based educational telecommunications systems. Data are analyzed and trends and issues discussed to provide information useful to the system designer who wishes to identify and assess the opportunities for large scale electronic delivery in early childhood education.
Rothenberg, D.↗
Review of ERTS-1 Status
A review of the ERTS-1 status and a description of the ERTS systems are presented. The manner in which the remote sensors receive information for transmission to ground stations is described. The orbit of the ERTS-1 is analyzed. The characteristics of the data and the processing procedures are reported. Specifications of the equipment aboard the satellite are defined.
Nordberg, W.↗
The experimental clean combustor program: Description and status
The objectives, program plan, schedule, pollution and performance goals, program approaches to pollution reduction, and status of the project are presented. Advanced supersonic transport and combustion noise programs are also discussed. The phases of the program consist of the following: (1) screening of low pollutant combustors, (2) refinement of the best combustors, and (3) engine demonstration of the best combustors. It is stated that all combustor designs investigated appear capable of achieving the idle pollutant goals with additional development effort.
Niedzwiecki, R. W.↗
Electric propulsion status and development plans - NASA programs
The current status of the NASA auxiliary and primary electric propulsion programs is reviewed. Plans for continuation of these programs and future target goals are also outlined. In auxiliary propulsion, progress on the ion engine flight experiment for the Application Technology Satellite (ATS)-F launch in 1974 to demonstrate North-South station keeping capability is reviewed. In addition, work on small pulsed plasma thrusters and hydrazine resistojets for attitude control applications are also described. In primary propulsion, the effort aimed at demonstrating the technology for solar electric propulsion is presented.
Lazar, J.↗
Space Shuttle Main Engine program status
Performance, weight, and reusability of the Space Shuttle Main Engine, the next generation rocket engine, are important factors in achieving the Space Shuttle mission. The design features of the engine contributing to the achievement of these engine demands are discussed. Many new fabrication methods, material applications, and innovations incorporated into the engine are presented. The engine program is now in the second year of the 47 months development period. The current status of activities in engineering, manufacturing, and test are reviewed. The Design Verification Specification approach to engine development is compared to the development programs for Saturn/Apollo engines.
Kirby, F. M.↗
Plans and status of the NASA-Lewis Research Center wind energy project
Wind energy is investigated as a source of energy. The wind energy program that is managed by the NASA-Lewis Research Center is described. The Lewis Research Center's Wind Power Office, its organization, plans, and status are discussed. Major elements of the wind power project included are: an experimental 100 kW wind-turbine generator; first generation industry-built and user-operated wind turbine generators; and supporting research and technology tasks.
Thomas, R.↗
Status and trends in active control technology
The emergence of highly reliable fly-by-wire flight control systems makes it possible to consider a strong reliance on automatic control systems in the design optimization of future aircraft. This design philosophy has been referred to as the control configured vehicle approach or the application of active control technology. Several studies and flight tests sponsored by the Air Force and NASA have demonstrated the potential benefits of control configured vehicles and active control technology. The present status and trends of active control technology are reviewed and the impact it will have on aircraft designs, design techniques, and the designer is predicted.
Rediess, H. A.↗
Portable medical status system
Electrical schematics and outline drawings of the portable medical status unit are presented along with recommendations for future units.
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