Kinross UFO Incident — The F-89C Scorpion: Aircraft Profile
Kinross UFO Incident — The F-89C Scorpion: Aircraft Profile
[edit | edit source]Overview
[edit | edit source]The Northrop F-89 Scorpion*** was an American all-weather jet interceptor designed specifically for the Air Defense Command's mission of detecting and destroying enemy aircraft entering American airspace. It was the standard interceptor in service with Air Defense Command units in the early 1950s and the aircraft type that scrambled from Kinross on November 23, 1953.
Specifications
[edit | edit source]| Specification | Detail |
|---|---|
| Manufacturer | Northrop Aircraft Company |
| Designation | F-89C Scorpion (C variant) |
| Type | All-weather jet interceptor; two-seat |
| Crew | Two: pilot (forward seat) and radar operator (rear seat) |
| Engines | Two Allison J35-A-21 turbojet engines |
| Maximum speed | Approximately 567 mph (913 km/h) at altitude |
| Service ceiling | Approximately 49,200 feet |
| Range | Approximately 905 miles (1,457 km) |
| First flight (F-89 prototype) | August 16, 1948 |
| F-89C variant introduced | 1951 |
| Primary armament | Wingtip-mounted unguided rockets; later variants carried Genie nuclear rockets |
| Radar | Hughes E-1 fire control system (early variants) |
| Avenger Red serial number | 51-5853A |
| Avenger Red home base | Truax Air Force Base, Madison, Wisconsin |
The C Variant
[edit | edit source]The F-89C was an early variant of the Scorpion with known mechanical issues, particularly with engine reliability. The C model experienced a higher-than-average accident rate during its service life, which has led some researchers to propose mechanical failure as a straightforward explanation for the Kinross incident — the aircraft simply suffered a catastrophic engine or system failure over the lake and plunged into the water too quickly for either crew member to eject or transmit a distress call.
The mechanical failure theory has the virtue of simplicity but fails to account for the simultaneous disappearance of the unidentified target's radar blip.
The Jet's Location at Kinross
[edit | edit source]The aircraft that flew the fateful mission was not permanently based at Kinross. It was an F-89C assigned to Truax AFB*** in Madison, Wisconsin, that was temporarily stationed at Kinross as part of the base's alert aircraft rotation. When the alert was called on November 23, the F-89C designated 51-5853A was in the five-minute alert queue at Kinross and was therefore the aircraft scrambled for the intercept.
Lieutenant Moncla was also temporarily assigned to Kinross from Truax, so both the pilot and the aircraft came from the same Wisconsin base. This detail is worth noting: the Kinross incident involved two men far from their home station, flying a temporarily deployed aircraft — circumstances that complicated subsequent record-keeping and administrative follow-up.
The Known F-89C Accident Record
[edit | edit source]The F-89C variant had a documented history of mechanical problems that resulted in multiple accidents across Air Defense Command units. On the same day as the Kinross incident — November 23, 1953 — another F-89C from Truax AFB crashed near Madison, Wisconsin, killing both crew members. The coincidence of two F-89C accidents from the same base on the same day has been noted by researchers as potentially relevant to the mechanical failure theory — though it also raises questions about whether the Kinross incident was simply one of two concurrent accidents or something qualitatively different.
