Clever D-Day Inventions That Made The Invasion A Success

June 6, 1944, was the day that changed the direction of World War II in the Allies’ favor. On that day, over 156,000 Allied troops stormed the beaches of Normandy toward almost certain death in the name of freedom. Although there were at least 10,000 Allied casualties, the mission was still considered a success. Even though much can be attributed to the bravery and sacrifice of the soldiers involved, the inventions designed for the invasion are what made the mission possible. Discover what the military devised and unveiled on D-Day that made the largest sea-to-land invasion ever feasible, and ultimately won the war.

The Tide-Prediction Machine Identified The Best Days For The Invasion

Photo Credits: Hulton-Deutsch Collection/CORBIS/Corbis via Getty Images
Photo Credits: Hulton-Deutsch Collection/CORBIS/Corbis via Getty Images

When it came to planning the landing on the beaches of Normandy, the moon and the tides played a critical role. Air operations needed clear skies and a full moon for visibility, the navy required calms waters, and the infantry required a low tide to expose German defenses. Such an invasion needed perfect conditions across the board for all aspects of the military.

So, British mathematician Arthur Thomas Doodson got to work on perfecting old tide-predicting machines. In 1944, he announced the best time for the invasion to be between June 5th and 7th. The attack took place on June 6.