An item reported that the British torpedo gunboat HMS Porpoise (1) built by the firm Thomson, Glasgow performed her trial on 9 March off Portsmouth during 4 hours with forced draught. Her engine was manufactured by her builder. With a medium steam pressure of 124 British pounds ad 154 rpm developed the engine 3.934 hp allowing a speed of 17,5 miles . With standard draught were 2.477,5 hp developed achieving a speed of 16 miles .
Note
1. Torpedo cruiser launched at the shipyard of Thomson, Glasgow on 7 May 1886 and finally sold on 10 February 1905 at Bombay.
