Baron of Renfrew (ship) was exempt from the high taxes on imported timber. She was built by Charles Wood, Anse du Fort, Quebec, Canada, on his own account. She followed the construction of a similar disposable ship, the barque "Columbus" built the year before. On August 23, 1825 under the command of captain Matthew Walker the ship left Quebec with a crew of 25 men and a cargo of 9000 tons timber (probably ship and cargo weight, both timber) bound for London, England. On October 21 of the same year the ship appeared in the English Channel but stranded the day after on the
Qiongsha-class cargo ship is reduced by a half, from the original eight heavy machine guns to four. However, deployment of these ships revealed the inherent problem resulted from the original design: the cargo ship design meant that the stability of the ship in harsh sea state in poor, and in severe bad weather, the ships would move violently and some medical operations such as surgeries could not be performed. Consequently, Nan-Yun 832 was converted back into cargo ship role and only one ship Nan-Kang (南康, meaning South Health in Chinese) is left in the service to play the role of medical provider. This