| Country | United States |
| State or Province | Missouri |
| City | St. Clair |
| Date | 1982 |
| Time | Daytime |
| Weather | Clear, no clouds |
| Duration | Not Specified |
| Witnesses (Number) | Multiple (exact number not specified) |
| Distance | Approximately a half mile |
| Solid Object | Yes |
| Size | Comparable to a small private plane |
| Shape | Disc |
| Shape Details | Flat bottom, Frisbee-like |
| Metallic/Shiny | Yes |
| Color | Aluminum |
| Glow/Halo | No |
| Lights | No |
| How Many Lights | Not Specified |
| How Bright | Not Specified |
| Light Coloration | Not Specified |
| Sound | Not Specified |
| Motion/Speed | Hovering, then disappeared rapidly |
| Number of Objects | 1 |
| Coordination/Communication | Not Specified |
| Windows | None |
| Occupants | Not Specified |
| Description | In 1982, near St. Clair, Missouri, on a clear day, the witness observed a Frisbee-shaped, aluminum-colored object hovering approximately 1000 feet above a rest area along I-44. The object was about the size of a small private plane and had a flat bottom. It was initially thought to be an experimental aircraft from McDonnell Douglas in St. Louis. Traffic on the highway came to a stop, suggesting that others also saw the object. When the witness looked away momentarily and then back, the object had vanished, disappearing faster than a normal aircraft. |
| Nearby Landmarks | Rest area on I-44, McDonnell Douglas Aircraft in St. Louis |
| Latitude | 38.3472 |
| Longitude | -90.9839 |
| Altitude | About 1000 feet |
| Propulsion | Not Specified |
| Advanced Capabilities | Rapid disappearance |
| Visible Payload | Not Specified |
| Radar | Not Specified |
| Signatures | Not Specified |
| Awareness | Not Specified |
| Aggression | Not Specified |
| Health Effects | Not Specified |
| Physical/Environmental Effects | Not Specified |
| Animal Disturbance | Not Specified |
| Witness Feelings | Not Specified |
| Witness Assessment | Assumed experimental aircraft, surprised by rapid disappearance |
| Additional Info | Not Specified |
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