https://www.rgj.com/picture-gallery/travel/destinations/explore-nevada/2014/05/02/historic-tonopah-army-air-field/8052267/
This hangar was used as a repair facility for the P-39 Airacobras at the Tonopah Army Air Field. After they were phased out this become a top secret facility where the developed the glide bomb, the forerunner of today's smart bomb.