HMS Formidable was
an 84-gun second rate of the Royal Navy, launched on 19 May 1825 at Chatham
In 1869 Formidable
became a training ship, and she was
sold out of the navy in 1906.
- Lavery, Brian (2003) The Ship of the Line - Volume 1: The
development of the battlefleet 1650-1850. Conway Maritime
Press. ISBN 0-85177-252-8.