ArticleslgStudy

science

The Report on Unidentified Flying Objects

The Report on Unidentified Flying Objects is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand The Report on Unidentified Flying Objects rather than just read about it. In short: The Report on Unidentified Flying Objects is a 1956 book by then-retired Air Force UFO investigator Edward J. Ruppelt, detailing his experience running Project Blue Book.

The Report on Unidentified Flying Objects — main illustration
The Report on Unidentified Flying Objects — illustration

Key takeaways

  • The Report on Unidentified Flying Objects belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect The Report on Unidentified Flying Objects to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of The Report on Unidentified Flying Objects from memory before moving on to harder problems.

Reference excerpt

The Report on Unidentified Flying Objects is a 1956 book by then-retired Air Force UFO investigator Edward J. Ruppelt, detailing his experience running Project Blue Book. The book was noted for its suggestion that a few UFO sightings might be linked to spikes of atomic radiation. Contemporary media summarized four topics discussed in the book:

There is "no real proof" that flying saucers exist—no reliable photographs, no "hardware". While the Air Force is officially dismissive of the spaceship theory, that conclusion is "far from unanimous". Some staff within the Air Force had produced a UFO analysis, called the "Estimate of the Situation", concluding that some UFOs were interplanetary spaceships. That analysis was rejected by a panel of scientists meeting in January 1953. Technological explanations were not considered: "No one at the meeting gave a second thought to the possibility that the UFOs might be super-secret US aircraft or a Soviet Development". In 1960, Ruppelt authored a second edition in which he reported being "positive" that UFOs do not exist.

Contents Ruppelt was a captain in the US Air Force who served as director of official investigations into UFOs: Project Grudge and Project Bluebook. During his time as director, Ruppelt had coined the term UFO. In the foreword, Ruppelt argues: "It is well known that ever since the first flying saucer was reported in June 1947 the Air Force has officially said that there is no proof that such a thing as an interplanetary spaceship exists. But what is not well known is that this conclusion is far from being unanimous among the military and their scientific advisers".

Introduction Ruppelt begins Chapter One with a tale, set in Summer 1952, where an unnamed F-86 fighter pilot fires on an unidentified target, only to be ridiculed as having 'cracked up' or panicked. Ruppelt claims the report on the incident was burned and never submitted to Bluebook—Ruppelt claims he learned of the incident through informal channels. Ruppelt describes how Bluebook handled income UFO reports. Many stories were classed "Insufficient Data for Evaluation", while a "Crackpot" file held reports from people "who had talked with flying saucer crews, who had inspected flying saucers that had landed in the United States, who had ridden in flying saucers, or who were members of flying saucer crews." In contrast, potentially-"good" reports were those from trusted, trained observers like higher-ranking military personnel. Ruppelt describes giving briefings to students at Air Force's Command and Staff school, Air Force Intelligence School, Office of Naval Research, as well as the Atomic Energic Commission's Los Alamos laboratory and Sandia Base. Ruppelt notes the discrepancy between public denials of official interest during the same era his groups was actively studying UFOs: "All of this time unnamed Air Force officials were disclaiming serious interest in the UFO subject. Yet every time a newspaper reporter went out to interview a person who had seen a UFO, intelligence agents had already been flown in, gotten the detailed story complete with sketches of the UFO, and sped back to their base to send the report to Project Sign. Many people had supposedly been "warned" not to talk too much. The Air Force was mighty interested in hallucinations."

1947 craze Chapter Two, "The Era of Confusion Begins", discusses the Kenneth Arnold UFO sighting and the subsequent 1947 flying disc craze. After initial skepticism, sightings from military personnel caught the attention of the Air Force Technical Intelligence Center. Ruppelt explains that "as more UFO's were observed near the Air Force's Muroc Test Center, the Army's White Sands Proving Ground, and atomic bomb plants, ATIC's efforts became more concentrated." Ruppelt described the Maury Island Incident, in which original saucer witness Kenneth Arnold was given mundane lava rocks claimed to have come from flying saucer. Arnold contacted Air Force investigators, who flew to investigate. On their return, the two investigators died when their plane suffered engine trouble.

Twining memo

The Report on Unidentified Flying Objects was the first to reveal that on September 23, 1947, Lieutenant General Nathan Twining had issued a memo to Brigadier General George Schulgen of the Army Air Forces. The subject line of the memo read "AMC Opinion Concerning 'Flying Discs.'" The general tone of the memo was that unidentified objects seen in the skies by military personnel were not weather, astronomical or other phenomenon but rather objects that warranted further investigation. Twining wrote "The phenomenon reported is something real and not visionary or fictitious." The Twining memo should not be confused with the "Cutler/Twining memo" dated July 14, 1954, included as part of the alleged Majestic 12 documents in 1985. The Federal Bureau of Investigation (FBI) declared those documents to be "completely bogus", and many ufologists consider them to be an elaborate hoax.

1948: pilot sightings and green fireballs Chapter Three, "The Classics" discusses the three most prominent reports of 1948: The Mantell Incident, where a National Guard pilot died chasing a UFO; The Chiles-Whitted Incident, where airline pilots reported a near-collision with a UFO; and the Gorman Dogfight, where a National Guard pilot engaged a UFO. Ruppelt discusses alleged incidents at Oak Ridge and Hanford, both major US atomic plants. Ruppelt discusses a report from Germany, dated November 23, 1948, which marked the first report featuring visual contact while simultaneously being picked up on radar. Chapter Four, "Green Fireballs, Project Twinkle, Little Lights, and Grudge", being with descriptions of green fireballs first seen over New Mexico in November 1948. Ruppelt recalls "They might be common meteorites, psychologically enlarged flares, or true UFO's, but whatever they were they were playing around in one of the most sensitive security areas in the United States." Ruppelt reports that a conference was called at Los Alamos in February 1949. In Summer 1949, the Air Force's Cambridge Research Laboratories established "Project Twinkle" to attempt to photograph the objects; it yielded no results.

… excerpt ends here. Continue reading the full article.

Illustrations

The Report on Unidentified Flying Objects illustration

Worked examples

Example 1 — a first encounter with The Report on Unidentified Flying Objects

Start with the simplest possible case. Write down what The Report on Unidentified Flying Objects claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to The Report on Unidentified Flying Objects before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about The Report on Unidentified Flying Objects ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of The Report on Unidentified Flying Objects

In research
The Report on Unidentified Flying Objects appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses The Report on Unidentified Flying Objects in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
The Report on Unidentified Flying Objects is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1947 flying disc craze, 1952 Washington, D.C., UFO incident, 1956 non-fiction books, so understanding it makes those chapters shorter.
In everyday life
Look for The Report on Unidentified Flying Objects outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “The Report on Unidentified Flying Objects” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study The Report on Unidentified Flying Objects in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what The Report on Unidentified Flying Objects means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain The Report on Unidentified Flying Objects out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is The Report on Unidentified Flying Objects in simple terms?

The Report on Unidentified Flying Objects is a 1956 book by then-retired Air Force UFO investigator Edward J. Ruppelt, detailing his experience running Project Blue Book.

Why does The Report on Unidentified Flying Objects matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study The Report on Unidentified Flying Objects?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on The Report on Unidentified Flying Objects.

Tags

  • 1947 flying disc craze
  • 1952 Washington, D.C., UFO incident
  • 1956 non-fiction books
  • Alleged UFO-related aviation incidents
  • Books about extraterrestrial life
  • Flying saucers
  • UFO-related literature
  • UFO sightings in the United States

Keep exploring