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Present-day, production-line automatic inertial navigation equipment, originally developed for the guidance of strategic missiles and space vehicles, offers today's air transport industry (1) a self-contained navigational system capable of rendering aircraft completely independent of all ground-based installations except the terminal airports and (2) a means of supplying continuously and automatically the exceedingly precise positional reports needed for a truly comprehensive air traffic control program. The implications of inertial navigation to air transportation and air traffic control are the principal subjects of this paper.

The sound generation is associated with the rotating blade pressures and for modern turbo-units, with supersonic tip speeds, also with rotating shock waves (“buzz-saw noise”).

The results of computational investigations carried out to clarify the possibilities of hydrogen scramjet thrust uprating in hypersonic flight (Mf>8) by adding to the fuel substances with higher density are presented. Thrust, specific impulse and density impulse are calculated while adding nitrogen, oxygen, water or inert liquated gases. For scramjet boosting in hypersonic flight it is suggested to add oxygen or a heavy inert gas to stoichiometric part of hydrogen instead of excessive part of hydrogen.

The expanded application of advanced composites to subsonic and supersonic commercial aircraft structure is discussed. Engineering, manufacturing and maintainability issues which could be obstacles to realization of the full advantages of advanced composites are identified and needed advances in technology are presented.

Laser induced fluorescence, Rayleigh scattering, chemiluminescence, phase shift holographic interferometry, and optically smart surfaces are techniques being developed for use in the Wright Laboratory supersonic wind tunnels. These advanced diagnostics techniques will be used to provide quantitative point measurements of density, pressure, temperature, velocity, and surface strain for use in basic aerodynamic research and validation of computational fluid dynamics codes.

The general characteristics of flutter problems affecting the structural design of both subsonic and supersonic transport aircraft are discussed in relation to configuration constraints resulting from mission performance and environmental impact requirements. ...Illustrations of the application of design techniques to supersonic and subsonic aircraft are presented.

The paper summarises the background studies which have led to the proposal for an advanced Olympus engine, with mechanical noise suppression, to power the next generation supersonic transport aircraft. The recent international collaborative test programme on real engine scale ejector suppressors is described and reference is made to other Rolls-Royce experimental work at model scale.

The development of a motor combining a pintle-controlled nozzle with gimbaled supersonic splitline thrust vector control (TVC) was undertaken in an effort to exploit the increased performance flexibility of a rocket system which is offered by thrust magnitude and thrust vector control.

SST design and results of recent progress on an advanced supersonic transport design. The results are shown of changing from a double-delta 2.7 Mach configuration to a modified arrow-wing 2.2 Mach design.

The National Aeronautics and Space Administration (NASA) is engaged in a Supersonic Cruise Airplane Research (SCAR) Program to study and experimentally evaluate advanced technology that is applicable to future supersonic transports. ...The National Aeronautics and Space Administration (NASA) is engaged in a Supersonic Cruise Airplane Research (SCAR) Program to study and experimentally evaluate advanced technology that is applicable to future supersonic transports. A broad spectrum of advanced engine concepts including Variable Cycle Engines (VCEs) has been evaluated by Pratt & Whitney Aircraft (P&WA) in conjunction with the SCAR Program. ...It has the potential to significantly reduce jet noise and to improve airplane performance relative to first-generation supersonic transport (SST) engines. Future propulsion programs that are required for the United States to reach a competitive position in the advanced supersonic commercial airplane market are also reviewed.

The importance of aeroacoustics for the aerospace industry cannot be underestimated. It is vital in terms of traveler comfort, environmental perception and industry expansion. This special edition of the International Journal of Aeroacoustics contains 12 papers originally presented at the Noise & Turbulence: Perspectives Past & Present Symposium (2009: University of Southampton). The symposium was held in honor of Professor Geoffrey M. Lilley, a multi-faceted educator and researcher. Selected are the papers specific to aeroacoustics covering aerodynamic noise theory, airframe noise, flow control, and experimental jet noise studies. Topics include a brief biography of Lilley, the relation between the generalized acoustic analogy and Lilley's contributions to aeronautics, solving the Lilley equation with quadrupole and dipole jet noise sources, hot jets and sources of jet noise, wave packet modules for large-scale mixing noise, and plasma actuators for noise control. Editor Dr.

The method is also applicable to supersonic flow visualizaton and for general use in high- and low-speed wind tunnel and water-tunnel testing.

The AS2 industry team – comprising Aerion in Reno, Nevada; Lockheed Martin in Bethesda, Maryland; GE Aviation in Evendale, Ohio; and Honeywell in Morris Plains, New Jersey – has finished the conceptual design phase and launched the preliminary design phase, slated to conclude in June 2020, of the Aerion A2 supersonic business jet.

Aerion Supersonic in Reno, Nevada, and Honeywell Aerospace in Phoenix are collaborating on a revolutionary, connected cockpit for the Aerion AS2, regarded as the first supersonic business jet in history. ...Aerion Supersonic in Reno, Nevada, and Honeywell Aerospace in Phoenix are collaborating on a revolutionary, connected cockpit for the Aerion AS2, regarded as the first supersonic business jet in history.

More North American-based Airbus Group, Inc. resources made available to bring Aerion's supersonic AS2 to market.

Aerion Supersonic in Reno, Nevada, is developing supersonic aircraft with the help of the Xcelerator portfolio from Siemens Digital Industries Software, with headquarters in Nuremberg, Germany, and offices worldwide.

AeroTech is your passport to explore the most remarkable advancements in aerospace technology. Form supersonic aircraft to sustainable aviation and propulsion, AeroTech covers it all.

AeroTech is your passport to explore the most remarkable advancements in aerospace technology. Form supersonic aircraft to sustainable aviation and propulsion, AeroTech covers it all.

This paper describes recent research in integrated aerodynamic-performance design optimization applied to a supersonic transport wing. The subsonic and supersonic aerodynamics are modeled with linear theory and the aircraft performance is evaluated by using a complete mission analysis.

Big Data, aircraft, and a better future Aircraft manufacturers, in particular engine makers, are exploiting the opportunities that come with collecting the vast amount of data available, from customer reports to engine exhaust temperatures. Why is it potentially so useful? What are some of the best ways to use it? Let the good times continue to roll The booming international commercial aviation sector continues to be a bright light leading the future of the aerospace industry.