In October 1942, when the Allies were having a headache about German submarines, British naval engineer Geoffrey Parker proposed a way to build an aircraft carrier out of ice to deal with German submarines. At first, Parker considered dragging huge icebergs from the Arctic to the Atlantic Ocean and transforming them into artificial Iceland, but this plan proved difficult to implement. ?

In early 1943, Parker invented a new building material called "Parker Cement". It is actually a special kind of ice mixed with a certain proportion of wood pulp. This kind of ice is not only as hard and strong as cement, but can also be soaked in seawater for a long time without melting or deforming. Parker's invention attracted great attention from British Admiral Louis Mountbatten. After some inspection and testing, Mountbatten tried his best to persuade the Allied top brass to accept Parker's suggestion. ?

Subsequently, physicists and shipbuilding experts from the United States, Britain, and Canada established a joint test team to begin testing the feasibility of using this mixed ice to build aircraft carriers. In June of that year, an ice aircraft carrier model built by the test team using "Parker Cement" in Patricia Lake, Canada, survived the summer safely without melting. This further strengthened Mountbatten's confidence. Soon after, scientists designed an ice-made aircraft carrier named "Habakuk" in accordance with the requirements of the Navy. It is about 600 meters long, 12 meters thick, has a total weight of 2.2 million tons, and has 26 propellers. It can carry 1,500 soldiers and 200 aircraft, and can also install a full set of equipment such as battle cannons. ?

People who know about this development plan are excited and look forward to the release of this new secret weapon as soon as possible. However, U.S. President Roosevelt, who had promised to fund the construction of an ice-based aircraft carrier, has always been skeptical about this plan. He sent his own scientific advisers to conduct further research and demonstrations. It was found that this aircraft carrier had fatal problems, the most important of which was the insufficient estimation of the heat dissipation of the large power plant on the ship. ?

In fact, as long as the engine is started, the surrounding ice will immediately begin to melt in large quantities, and no matter what remedies are used, it will not prevent the rapid shrinkage of the ship's hull. After hearing this situation, Admiral Mountbatten, who was full of confidence, also discovered and admitted the fatal flaw of the ice aircraft carrier, and was forced to announce the termination of the plan. In this way, the ice aircraft carrier aborted midway. ?

This picture is an imaginary picture drawn by later generations.