Parry, his lieutenant on the previous expedition, returned to the Arctic in 1819, and sailed west beyond the "Croker Hills", thereby discovering the Parry Channel – the main axis of the North West Passage. Partly to redeem his reputation, Ross proposed to use a shallow-draft steamship to break through the ice. The Admiralty was not interested, but he was able to convince the gin-magnate Felix Booth to finance this second Arctic expedition, which began in 1829. His ship was the "Victory", a side-wheel steamer with paddles that could be lifted away from the ice and an experimental high-pressure boiler built by John Ericsson. The "Victory" had been built in 1826 and previously had served as a ferry between Liverpool and the Isle of Man. The engine caused trouble and during the first winter, it was dumped on the shore. The ship carried four officers – John Ross, James Clark Ross, William Thom, surgeon George McDiarmid – and 19 men. The goal was Prince Regent Inlet at the west end of Baffin Island where Parry had lost his ship, the "Fury", in 1825.