Pratt and Whitney Double Wasp engine.

All German and British aircraft engines were water cooled...one hit to the cowling and their planes were done. The US Aircraft and their pilots kept being able to be sent back into theater, and given the emphasis on land battle and the vastness of Russia, the entire "air space" of Western Europe was ceded to the Americans. A good primer is how little the United States used its very formidable Navy in World War 1. In the Interwar Years (1919-1941) the USA concentrated on perfecting an air cooled radial engine (Curtis Wright had the other) and then concentrated on building a heavy bomber (the B17) with that engine (a "Superfortress") and then battle trained their "Air Force" in China against the Japanese.

The USA was never under threat of a Sea or Ground invasion during World War 2.

Pratt and Whitney Double Wasp engine.

All German and British aircraft engines were water cooled...one hit to the cowling and their planes were done. The US Aircraft and their pilots kept being able to be sent back into theater, and given the emphasis on land battle and the vastness of Russia, the entire "air space" of Western Europe was ceded to the Americans. A good primer is how little the United States used its very formidable Navy in World War 1. In the Interwar Years (1919-1941) the USA concentrated on perfecting an air cooled radial engine (Curtis Wright had the other) and then concentrated on building a heavy bomber (the B17) with that engine (a "Superfortress") and then battle trained their "Air Force" in China against the Japanese.

The USA was never under threat of a sea or ground invasion during World War 2.

Pratt and Whitney Double Wasp engine.

All German and British aircraft engines were water cooled...on hit to the cowling and their planes were done. The US Aircraft and their pilots kept being able to be sent back into theater and given the emphasis on land battle and the vastness of Russia the entire "air space" of Western Europe was ceded to the Americans. A good primer is how little the United States used its very formidable Navy in World War 1. In the Interwar Years (1919-1941) the USA concentrated on perfecting an air cooled radial engine (Curtis Wright had the other) and then concentrated on building a heavy bomber (the B17) with that engine (a "Superfortress") and then battle trained their "Air Force" in China against the Japanese.

The USA was never under threat of a Sea or Ground invasion as a result of World War 2.

Pratt and Whitney Double Wasp engine.

All German and British aircraft engines were water cooled...one hit to the cowling and their planes were done. The US Aircraft and their pilots kept being able to be sent back into theater, and given the emphasis on land battle and the vastness of Russia, the entire "air space" of Western Europe was ceded to the Americans. A good primer is how little the United States used its very formidable Navy in World War 1. In the Interwar Years (1919-1941) the USA concentrated on perfecting an air cooled radial engine (Curtis Wright had the other) and then concentrated on building a heavy bomber (the B17) with that engine (a "Superfortress") and then battle trained their "Air Force" in China against the Japanese.

The USA was never under threat of a Sea or Ground invasion during World War 2.