 With an unusual configuration in which a flywheel drove chains which in turn drove the wheels, the locomotives were noisy and were nicknamed "Old Chainey" by locals.The first of the new locomotives, given serial number 807 by Aveling and Porter and numbered 1 by the Tramway, was delivered to Wotton station on 27 January 1872.On the day of its delivery, the now-redundant horses had been sent away.