Coniston Water per hour () in "Blue Bird K4". Between 1956 and 1959 Sir Malcolm's son Donald Campbell set four successive records on the lake in "Bluebird K7", a hydroplane. In 1966 Donald Campbell decided that he needed to exceed 300 miles per hour (483 km/h) in order to retain the record. On 4 January 1967, he achieved a top speed of over 320 miles per hour () in "Bluebird K7" on the return leg of a record-breaking attempt. He then lost control of "Bluebird", which somersaulted and crashed, sinking rapidly. Campbell was killed instantly on impact when decapitated by the K7's
H. M. Wilson with a water cannon, for fighting fires. She was built to operate in icy waters. H. M. Wilson The H. M. Wilson is a tugboat especially designed for service in Churchill, Manitoba, the only Arctic Ocean port connected to the North America railroad grid. The vessel was designed by the well-known naval architectural firm, Robert Allan Ltd.. She was designed to be broken down into several loads that could each be shipped on a railroad flatcar, to be reassembled in Churchill. She was designed with a relatively flat bottom, due to the lack of any nearby ports with maintenance facilities.