'Gap SAR', 'Son of SAR'...all the same. I've heard that both the MoD nor the MCA will be involved in the main SARH operation next time round. The former because there isn't the political desire for it and the latter because they don't have the expertise nor infrastructure to run it.
My take: a civil consortium, owned and run by a private company, monitored by a DfT quango.........now where have I heard that before