ab33t: if you read the AIP, you will see that is the Standard Departure Route (SDR) for Blackbushe IFR traffic exitting the UK via DVR; if you're not IFR wishing to join CAS just say so, better still plan to route WOD - BNN - BPK - CLN.
cessnapete: are you sure you haven't simply seen the RA(T) for the forthcoming Farnborough Air Show? What you describe is suspiciously like the airspace I designed for it back in 2004.