Forth was a 397-ton sailing ship built in 1814 at Calcutta, British India under the name New Carmo.

A letter dated 24 December 1824, at San Blas, reported that New Carmo, Proudfoot, master, from Bengal, had been seized on suspicion of having taken on board Spanish property at Panama.

[5] New Carmo had been on her way from Calcutta to Mazatlán and put in at San Bias to repair damages.

The Commandant there initially gave Proudfoot permission to effect the repairs, but two days later attempted to seize her.

[2] Under the command of David Proudfoot, master, and William Clifford, surgeon, Forth sailed from Cork, Ireland on 1 January 1830, and arrived at Port Jackson on 20 April 1830.