Episode 62: Project Habakkuk

During the second World War, U Boat Wolf Packs stalked the Atlantic, harassing and sinking various Allied military and merchant vessels, threatening the vital resource lines supplying Britain. A long swath of ocean lay outside the range of land-based anti-submarine aircraft, known as "the Gap". Then, British inventor Geoffrey Pyke had an idea: a giant unsinkable aircraft carrier constructed entirely out of ice.