They were quite different from the Admiralty-designed ships of the Admiralty M class, although based on a basic sketch layout provided by the British Admiralty from which J I Thornycroft developed their own design.

The midships 4-inch (100 mm) gun was shipped between the second and third funnels.

Patriot was fitted to carry a kite balloon.

Note Thornycroft also built six other M-class destroyers for the Royal Navy – Michael, Milbrook, Minion and Munster, all ordered on 20 September 1914, and Nepean and Nereus, both ordered on 20 November 1914; however these were to the Admiralty 'M' design and are included with the article on that large group of destroyers.

Media related to Thornycroft M class destroyer at Wikimedia Commons