First convict voyage (1828): Captain John Duff sailed Roslin Castle from The Downs on 19 August 1828 and arrived at Hobart Town on 16 December.

[5] Third convict voyage (1832–1833): Captain William Richards sailed from Cork, Ireland, on 8 October 1832 and arrived at Port Jackson on 16 December.

Fourth convict voyage (1834): Captain Richards left London on 22 May 1834 and arrived at Port Jackson on 15 September.

[10] In March 1836, it was announced in the press the vessel was to be fitted out for a whaling voyage to Cloudy Bay, New Zealand, under charter to Messrs Long & Co.[11] A whaling voyage (1836-1837): Roslyn Castle departed Sydney 29 April 1836 under the command of Captain William Richards for New Zealand.

The vessel was reported off the Three Kings, at the Bay of Islands, at Banks Peninsula and elsewhere off the coast of New Zealand.

[14] On 2 August 1838, the vessel was purchased in Sydney for £2,200 by Robert Duke & Co.[15] At first it was planned to send her whaling again.