The Dam Dusters

The true story of a top secret RAF squadron in WWII. In 1944 the RAF hatched a brilliant and subtle plan to destroy the many dams that were dotted along the large rivers of Germanys’ industrial heartland. The plan was to repeatedly fly over the dams at night and drop a fine layer of dust. On each successive occasion the layer of dust would grow imperceptibly.
Eventually the combined weight of the dust layers would be enough to crack the dam, then water would start to flow through and widen the cracks until there was a catastrophic failure. The plan was abandoned when the Brits lost 223 bombers before the dust level had even reached 0.15 millimetres.