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. Polk P. H. Polk P. H. Polk (November 25, 1898 – December 29, 1984) was an African-American photographer known for his powerful, acute portraits of African Americans from all walks of life. He also served for several years as head of the Tuskegee Institute's Department of Photography. Prentice Herman Polk was born on November 25, 1898, in Bessemer, Alabama, one of four children of Jacob Prentice Polk and Christine Romelia Ward. After his father's death, he adopted his father's given name and became Prentice Herman Polk, known as P. H. In 1916, he enrolled at the Tuskegee Institute intending to become