A torpedo boat (length 86 feet, beam 11 feet), with machinery of 450 horsepower, built by Yarrow and Co., Poplar for the Austrian Government achieved a trial speed of 21.8 knots on the 4th of July 1879, in the presence of Count Cassini, naval attaché to the Austro-Hungarian Embassy and Herr A Waldvogel, chief engineer to the Austrian Navy.