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
P&H Mining ability of their manufacturing enterprise to endure economic recessions and continue growing into a modern, global business referred to by their customers simply as “P&H” by the start of the 1900s. P&H Mining Equipment formalized the name of its service support business in 1996 by renaming it “P&H MinePro Services”. P&H took over The Beloit Corporation in 1986. Beloit Corporation was a large, worldwide paper machine manufacturing corporation based in Beloit, Wisconsin. The Beloit Corporation had started nearly 150 year prior as BIW "Beloit Iron Works" corporation and sat on the original grounds of Beloit Iron Works. By the year