Her engines were powered by four oval boilers.

Their engines were powered by two cylindrical boilers.

Its engine was powered by eight oval boilers.

Her engine was powered by two tubular boilers.

Their engines were powered by four double-ended cylindrical boilers.

Their engines were powered by eight oval boilers.

The engines were powered by four square boilers.

Her Maudslay engine was powered by 8 boilers and developed 4,403 ihp.

The engines were powered by 15 marine-type boilers with two fireboxes apiece for a total of 30.

Their engine was powered by four oval boilers.