Re: Space progress report

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