credit: Reaction Engines
Click through to the extended section of this blog post to see Bristol University researcher Neil Taylor present expansion nozzle research, funded by UK company Reaction Engines, at the International Astronautical Congress 2008 held in Glasgow, Scotland
Reaction Engines envisages such nozzles being used for its Sabre engine that would power its proposed single-stage-to-orbit Skylon vehicle. Reaction Engines is using some of its related technology for the European Space Agency managed European Union funded hypersonic LAPCAT projects