 Complete the following phrase:  She was built in Hull at the William Gibson Shipyard, as one of a class of three the others being Combatant and Valorous and launched in 1804. Designed by John Staniforth MP, they were flush-decked, shallow draught and for their dimensions heavily armed. Rated as a sloop, she had a design based on the Danish Praam English Pram, allowing the combination of heavy armament with a draught of only 11 feet. Her design may well have been influenced by the flush-decked, shallow draught vessels of Napoleons 