Packet Company since 1888 and was scrapped in 1899. In 1899 the railway sold Slieve Donard to Alexander Campbell, co-founder of the P&A Campbell pleasure steamer company. Slieve Bearnagh remained with the B&CDR, occasionally making excursions to Portaferry on the Ards Peninsula, Ardglass in south Down, and Larne and Portrush on the coast of County Antrim in addition to her regular scheduled route on Belfast Lough. At the end of the 1911 summer season the B&CDR put Slieve Bearnagh up for sale and ordered a new paddle steamer, again slightly larger than her predecessors. A&J Inglis of Pointhouse, Glasgow launched the new ship, PS Erin's Isle, on 12 June 1912 and fitted her out in less than a month. On 19 June 1912 the railway sold Slieve Bearnagh to D&J Nicol of Dundee for service on the east coast of Scotland. Erin's Isle was in B&CDR service from 12 July 1912 until her fourth summer season ended on 29 September 1915. On 20 November 1915 the Admiralty requisitioned her for £400 per month to be a Royal Navy minesweeper. On 7 May 1919 she was sunk by a mine, for which the Admiralty paid £53,676 compensation. However, the railway found that a new ship would cost £64,000 and decided not to return to owning steamships. Ulster Transport Authority In 1946 the Northern Ireland Government announced that it would unite under a single authority all public transport that was wholly within Northern Ireland. The Transport Act (NI) 1948 created the Ulster Transport Authority which took over the BCDR on 1 October 1948 and the Northern Counties Committee on 1 April 1949. On 15 January 1950 the UTA withdrew services on the former BCDR lines between Comber and Newcastle; Ballynahinch Junction and Ballynahinch; and Downpatrick and Ardglass. The Northern Ireland Transport Tribunal had authorised these closures on 15 December 1949. The UTA withdrew services between Ballymacarrett Junction and Donaghadee on 22 April 1950. The line between Castlewellan and Newcastle remained open until 1 May 1955, served by Great Northern Railway Board trains to and from Banbridge. Once these two sections had been closed, the line between Belfast and Bangor was the only part of the former BCDR that remained open. When the UTA took it over, the BCDR had 29 locomotives, 181 carriages and 25 other coaching vehicles, 629 wagons mostly covered vans and wagons but also including some 6-wheeled fish vans,