 craft propulsion units, or maybe it's the alloys that make the composition of a fuselage of a certain type of craft, or it's the optics that are on a craft. Those types of companies that are contracted by the federal government are out here in the desert, not unlike what's under Groom Lake, except that the Groom Lake facility or Area 51 is far more well-known. Whatever, if there is a name for what's out here under the Sedona area, is more or less unknown.