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. P. M. Beames H. P. M. Beames Hewitt Pearson Montague Beames, (9 May 1875 – 5 March 1948) was Chief Mechanical Engineer of the London and North Western Railway from 1920 to 1922. Beames was born in Monkstown, Dublin in 1875, and educated at Corrig School, Kingstown, County Dublin, (now Dún Laoghaire), at Dover College, and Crawley's Military Academy. He then became an apprentice under, and pupil of, Francis William Webb at the Crewe works of the London and North Western Railway (LNWR). A keen rugby union player, Beames played for Lancashire on several occasions, and was invited to tour Canada with the