Supersonic Speeds

Some articles on supersonic, speeds, speed, supersonic speeds:

Swing-wing - History
... Barnes Wallis had started work on variable geometry to maximise the economy of supersonic flight ... he successfully tested several models including a six foot scale model at speeds of up to Mach 2 in the 1950s but government backing was withdrawn ... patented in Britain and US (Patent 2,741,444) a design for a supersonic variable-sweep wing and tail fighter, the design was built and wind tunnel test were completed successfully, but the ...
Scramjet - Design Principles - Basic Principles
... with ramjets, fill the gap between the high efficiency of turbojets and the high speed of rocket engines ... while highly efficient at subsonic speeds, become increasingly inefficient at transonic speeds, as the compressor fans found in turbojet engines require subsonic speeds to operate ... While the flow from transonic to low supersonic speeds can be decelerated to these conditions, doing so at supersonic speeds results in a tremendous ...
Supersonic Transports - Challenges of Supersonic Passenger Flight - Engines
... Jet engine design shifts significantly between supersonic and subsonic aircraft ... as a class, can supply increased fuel efficiency at supersonic speeds, even though their specific fuel consumption is greater at higher speeds ... Because their speed over the ground is greater, this decrease in efficiency is less than proportional to speed until well above Mach 2, and the consumption per mile is lower ...
Components Of Jet Engines - Major Components - Air Intakes - Supersonic Inlets
... Supersonic intakes exploit shock waves to decelerate the airflow to a subsonic condition at compressor entry ... These form sharp fronts and shock the flow to subsonic speeds ... Basically, the higher the supersonic entry Mach number to a normal shock wave, the lower the subsonic exit Mach number and the stronger the shock (i.e ...

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