 Complete the following phrase:  HMS Penelope was a central-battery ironclad built for the Royal Navy in the late 1860s and was rated as an armoured corvette. She was designed for inshore work with a shallow draught, and this severely compromised her performance under sail. Completed in 1868, the ship spent the next year with the Channel Fleet before she was assigned to the First Reserve Squadron in 1869 and became the coast guard ship for Harwich until 1887. Penelope was mobilised as tensions with Russia rose during the Russo-Turkish War of 187778 and participated in the 