Assertion: steel hangar | /r/HasProperty | built for earlier rigid airships
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text: The main blimp hangar was commissioned and designed in 1941, before Pearl Harbor and steel rations, so it has a design similar to other steel hangars built for earlier rigid airships, like the Goodyear Airdock at Akron, Ohio, and Hangar 1 at Moffett Field, California, with clamshell doors that opened on curved tracks around the end of the building.