To ask the Scottish Executive, further to the answer to question S4W-07974 by Keith Brown on 27 June 2012, what estimate it has made of the level of public subsidy required to (a) maintain the contract with the Royal Bank of Scotland to lease the MV Hrossey, MV Hjaltland and MV Hamnvaoe and (b) charter two new vessels, for service on the 2012-18 Northern I...