Donald Campbell was killed his jet powered boat, Bluebird K7, on Lake Coniston. Jan. 4, 1967. His body was never recovered, but an oxygen mask and helmet were amidst the debris of the hydroplane. Movie film shows plunge downward from 60 feet and subsequent explosion. 5. Underside of craft shows after boat somersaults in midair and downward plunges. 6. Mushroom cloud erupts upon impact and explosion. 7. Spray caused by crash dies down. 8. Bluebird's tail is visible above the water line only seconds before it disappeared below the surface of the 150 foot deep lake. - (CSU_2015_5_20)