Smith

This report describes the Modeling of Unlikely Space-Booster Failures in Risk Calculations, documenting historical launch failure modes and recommending corrective actions to address them using novel modelling techniques.

Each of these incident summaries includes a "Check-List - Unidentified Flying Objects" that contains details about the incident. Many summaries also include witness lists or statements and other narrative reports or descriptions.

A collection of USAF Incident Summary Sheets from 1947-1948, detailing UFO sightings across the United States and Japan. Reports include witness statements from civilians, pilots, and military personnel, with descriptions of object shapes and behaviors.

This file contains memorandums, correspondence, and forms related to the reporting of information on flying discs and investigations into sightings.

Collection of U.S. Army Air Forces reports from July-September 1947 detailing 'Flying Disc' sightings by airline pilots near Boston, MA, military personnel and civilians in Birmingham, AL, and multiple witnesses in Newfoundland, Canada.

FBI file from 1957 detailing an interview with Wladyslaw Krasuski, a Polish WWII POW, who reported observing a circular craft in Germany in 1944. The file also contains a 1966 inquiry from the Oklahoma UFO Research Association.