[1] It had been found that the addition of both poop and focsle made gunvessels far more comfortable in the tropics; an awning spread between the two allowed men to sleep on the upper deck during hot nights.

[2] The composite method of construction used iron for the keel, stem, stern post and framing, with wooden planking.

As well as the benefits of low cost, this construction allowed repairs to be conducted easily when away from well-equipped dockyards.

[1] The vessels of the class were barque-rigged, but some of the pictures show yards on the mizzen mast, which would have made them ship rigged.

[6] In 1892 she was sold to the Liverpool Association for the Protection of Commercial Interests as Respects Wrecked and Damaged Property and carried out many of the more challenging salvage jobs, including on SS Suevic and HMHS Asturias.