Leeds/Bradford, Liverpool, Newcastle, Aberdeen, Inverness, the Isle of Man, Berlin (including both non-stop and one-stop services) and certain regional European destinations such as Bordeaux, Cork, Luxembourg and Rimini, as well as its Birmingham operations other than those to and from the Channel Islands. BEA Cargo assumed responsibility for all of BEA's freight activities, including all pure freighter aircraft. The Super One-Eleven division was headquartered in Manchester. It assumed responsibility for BEA's entire BAC One-Eleven 500 fleet and all of the airline's Manchester operations other than those to and from the Channel Islands, as well as all of its Berlin operations, with at least six aircraft based at Ringway and up to 12 at Tempelhof. From 1 April 1973, it also began replacing Viscounts and Tridents plying the Aberdeen–Heathrow route on behalf of BEA's Scottish Airways division with One-Eleven 500s, as the latter were more efficient and had greater passenger appeal. The Scottish Airways division was headquartered in Glasgow and assumed responsibility for all of BEA's Scottish internal routes, as well as all of the airline's Glasgow–Belfast, Aberdeen–Heathrow and Inverness–Heathrow services. In addition to its Viscount mainline aircraft, Scottish Airways also operated a dedicated fleet of smaller regional feeder aircraft. These served remote communities in Scotland's Highlands and Islands region. The Channel Islands Airways division assumed responsibility for all of BEA's services to and from the Channel Islands other than those to and from Heathrow, Bristol, Cardiff, Leeds/Bradford, Liverpool and Newcastle. It also operated domestic and international routes from Birmingham, using a dedicated Trident 1E, as well as a mix of Scottish and Channel Islands Viscounts. BEA's wholly owned helicopter subsidiary assumed responsibility for its entire rotorcraft fleet and all of the airline's rotorcraft operations, including the scheduled service between Penzance and the Isles of Scilly. BEA's wholly owned charter subsidiary BEA Airtours assumed responsibility for all of its regular, non-IATA flying activities using fixed-wing aircraft – i.e., predominantly IT charter flights under contract to third-party tour operators. The British Air Services division assumed responsibility for Cambrian Airways and Northeast Airlines, BEA's two majority-owned regional airline subsidiaries. This included all services operated by these airlines on behalf of their parent company, principally all of the corporation's domestic and international services from and to Bristol, Cardiff, Leeds/Bradford, Liverpool, Newcastle and the Isle of Man, as well as selected international regional services from Heathrow such as Bordeaux, Cork, Luxembourg and Rimini. Travel Sales