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Measurements of the gas state properties in hypersonic propulsion system research present unique problems demanding unconventional diagnostic measurement system design solutions.

It has been named the Propulsion Multiplexer (PMUX) System and has been specified for Pratt and Whitney Aircraft and General Electric engines for the Airbus Industrie A310 aircraft.

To facilitate the development of a space nuclear propulsion module for manned flights to Mars, requirements must be established early in the technology development cycle. ...This paper discusses the application of the methodology and the analyses to develop condition monitoring requirements under a contract with the National Aeronautics and Space Administration (NASA) Lewis Research Center (LeRC) Nuclear Propulsion Office (NPO).

These advances have enhanced the usage of the code in the areas of liquid propulsion, fire suppression, and environmental control systems (ECLSS), providing for the first time a common framework for analysis and data exchange between engineers in these otherwise distinct specialties.

The application of digital electronic technology to the control of advanced commercial aircraft engines is expected to reduce fuel consumption by approximately 1% and hot section maintenance costs by as much as 50% because of the ability of electronic controls to operate more precisely than their hydromechanical counterparts. Other advantages, which will accrue from the use of electronic digital controls, will be the virtual elimination of engine control trimming, a greatly simplified interface with aircraft condition monitoring equipment, and more rapid and less costly control maintenance procedures. Digital electronic control is still an emerging technology, but it offers potential benefits which should justify the investment to bring it into commercial service.

The single point excitation procedure employed to experimentally determine the natural modes of the Space Shuttle Main Propulsion Test Article (MPTA) installed in the static firing test stand at the National Space Technology Laboratory is described. ...Results were obtained with minimum Main Propulsion Test schedule impact and at minimum cost.

The Earth-to-Orbit (ETO) Propulsion Program was initiated in 1988 as a major element of NASA's Civil Space Technology Initiative (CSTI), a set of some ten different program elements directed to the revitalization of the U.S.'

This report covers torque indicating and limiting devices, also referred to as torque wrenches or torque handles, accessories used to obtain predetermined torque values on nuts, bolts, plumbing, related fasteners and friction of rotating parts, etc; calibration equipment and recommended schedules; proper use of tools and chronic torque problems.

The purpose of this document is to supplement, and is subordinate to, the S.A.E. Technical Standards Board Governance Policy (TSBGP) and the Aerospace Council Organization and Operating Procedures (ACOOP), which set forth the organization, objectives and operating procedures for the SAE’s Committees.

By entirely enclosing a rotor in the manner described, it is possible to obtain very high hovering efficiency, and at the same time by ducting the air properly through the rotor, it is possible to use this system for forward propulsion. The results of the tests indicate the advantages that have been gained through this arrangement and also show what penalties can be expected to be paid for obtaining these advantages. ...It should also be possible to do this in a vehicle which utilizes basically one propulsion system, and which obtains its transition from hovering to forward flight by means of ducking air rather than by turning either the propulsion system or the vehicle itself. ...It should also be possible to do this in a vehicle which utilizes basically one propulsion system, and which obtains its transition from hovering to forward flight by means of ducking air rather than by turning either the propulsion system or the vehicle itself. Although the work of this program is not yet complete, it should be clear from the indications of the results obtained so far that this configuration could be a very useful tool in the flight regime existing between the helicopter and the high speed airplane.

The buzz about electric aircraft Emissions limits force the aviation industry to study hybrid and battery-electric propulsion systems. Car-to-X marks the secure beamforming spot Intelligent networking of cars and infrastructure promises a future of enhanced active safety and traffic efficiency, though as an open and decentralized system, car-to-X is exposed to various attacks against security and driver's privacy.

The testbed consists of an AC generation and propulsion system that is coupled to a DC zonal distribution system. A primary objective of the testbed is to provide a resource to the academic and industrial community by providing a non-proprietary system on which to demonstrate controls, survivability algorithms, and validate computer-aided design (CAD) tools.

Great savings in both time and money were achieved in areas of propulsion, air conditioning, avionics, and controls through the elimination of problems prior to commitment to a final production configuration.

This is specially true for a satellite propulsion subsystem, and its physical (volume, mass, energy, enthalpy, entropy, linear momentum, etc.) flows. ...This paper presents the modeling and simulation of a satellite propulsion subsystem by physical and signal flows. To accomplish this task, two different computational tools were used: AMESim and MatLab.

Clean, quiet commercial propulsion Engine manufacturers design future engines to meet noise, pollution, and fuel economy needs.

Alternative fuels and challenges Automotive powertrain development: virtually-connected hardware co-simulation Functional Safety-progressing towards safer mobility Electric rockets and the future of satellite propulsion Achates powers toward production A potential ICE game-changer, the Achates OP engine is being tooled up for production at one OEM while a new 2.7-L triple for light-truck demonstrations enters the build phase.

Successful applications include vehicle propulsion, complex manipulator systems, coring devices, underwater tools, and many others. Due to the newness and size of this market, the designer is aware that very few manufacturers produce components designed or suitable for underseas operation.