Obit: Man Who Flew Through a Mushroom Cloud

The Telegraph has the obituary of Air Marshal Sir Geoffrey Dhenin.  As a young pilot he was given the assignment of flying though the mushroom cloud after a nuclear test.

When the first weapon was detonated, on October 13, Dhenin was already airborne at 30,000ft. As soon as the mushroom cloud developed he turned towards it and placed a wing tip, with a sensor attached, into the cloud to obtain radiation readings. Using special instruments, his observer calculated the probable dose rate. Once assured that the rate “would not be suicidal”, Dhenin turned for the centre of the cloud.