The D&KR initially ordered six locomotives, "Hibernia", "Britannia", and "Manchester" from Sharp Brothers together with "Vauxhall", "Dublin", and "Kingstown" from George Forrester and Company. The Sharps' engines employed vertical cylinders whilst the Forresters' were horizontal. "Vauxhall" and "Hibernia" were the first to arrive by ship for £21 each and participated in public trials in October 1834 with "Hibernia" hauling the first fee paying service on 17 December 1834. The design of "Hibernia" and her sisters proved problematic and they were withdrawn early, "Hibernia" having been noted to have exploded in 1842. The D&KR ordered a further locomotive "Star" from Forrester. This was followed by two 2-2-0T well tanks locomotives, "Victoria" and "Comet", again from Forrester's. These were the first tank locomotives in public passenger service.