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credit: Reaction Engines / caption: Skylon has been the subject of a UK economic review

As part of the UK space exploration review report an economic study was undertaken of reusable launchers, namely Virgin Galactic’s air launched system, Reaction Engine’s single stage to orbit Skylon and Bristol Spaceplanes Ascender and Spacebus concepts

The space exploration review report can be found here and the economics study can be found here, while the RLV details are from page 46 to page 59 of the economics report

Find the British National Space Centre announcement here for both

The economic report says

The potential benefits to the UK arise from the ability to launch spacecraft at significantly lower cost than can currently be achieved, providing relatively inexpensive access to space for international governments, private companies and the public.