Complex sentence: The US Navy developed in 1943,10 Airship Bases but due to steel rations, a total of 17 large wooden hangars to house six (6) blimps in each, are built.
Split into simpler sentences: The US Navy developed in 1943,10 Airship Bases. Due to steel rations, a total of 17 large wooden hangars to house six (6) blimps in each, are built.