Keith said:
> Friday I visited Reaction Engines. Delightful experience meeting Alan
> Bond and Richard Varvill, the key technical guys. They have (and I
> saw) the precooler for the SABRE engines working. They extract a GW
> of heat from entering ram air and drop the temperature to -150 deg,
> making it possible to compress the air to rocket chamber pressure with
> a low tech turbine. Miles of tiny tubes in each one, and they *don't
> leak.*
Speaking of Skylon, the SABRE precooler has now successfully passed its test
programme:
http://www.bbc.co.uk/news/science-environment-20510112
Rich
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