The engines and boilers were taken out.

The vessel was fitted with two side lever engines, and many successive experiments were made with her down to August, 1817, at an expense of about 10,000L.

This led to a settled plan of construction, by which marine engines were greatly improved.

James Watt, junior, accompanied the Caledonia to Holland and up the Rhine.

The vessel was eventually sold to the Danish Government, and used for carrying the mails between Kiel and Copenhagen.