The Joe Davies Heritage Airpark at Palmdale Plant 42, formerly known as the Palmdale Plant 42 Heritage Airpark is an aviation museum and airpark located in Palmdale, California with various United States military aircraft on display. The park is located adjacent to the United States Air Force Plant 42 and the Blackbird Airpark Museum. All of the aircraft on display were donated or loaned to the city of Palmdale, which owns and operates the park.