 Complete the following phrase:  In 1885 W:m Crichton  C:o produced its largest vessel by then, gunboat Bobr Beaver with displacement of 1 187 tonnes. She featured two engines with total output of 1 140 hp, which gave her maximum speed of 11 knots. The vessel was heavily armed; two 9 cannons on the bow and a 6 cannon on the stern and additional smaller six 42-mm and four 37-mm guns. The gunboat served in the Russian Pacific fleet until it sank due to Japanese fire in 