Project Blue Book Case #2128. On September 27, 1952, an unidentified object was observed in the vicinity of Inyokern, California — the small desert community adjacent to the Naval Ordnance Test Station (NOTS) at China Lake, one of the military's most important weapons development and testing facilities. The object's presence near this highly sensitive installation elevated the case's priority.
China Lake / NOTS was responsible for developing and testing naval weapons systems including missiles, rockets, and experimental aircraft. The base encompassed over a million acres of restricted desert terrain, with some of the most heavily surveilled airspace in the country. Any unidentified object in this vicinity was of immediate concern to military security.
The object was reported during the waning days of the great 1952 wave, when Blue Book was still processing hundreds of cases from the summer's extraordinary activity. Despite the high volume of reports, cases near sensitive weapons facilities received particular attention from investigators.
Details of the observation indicated an object that did not conform to any known aircraft or weapons test profile. The desert environment around Inyokern, with its clear air and excellent visibility, provided optimal conditions for visual observation. Investigators coordinated with China Lake to verify all test schedules and flight operations for the date, finding no correlation with the reported object.
The proximity to an active weapons test range introduced the possibility of experimental aircraft, but base records confirmed no tests or flights that could account for the sighting. Case #2128 was classified "Unknown."