UFO Pendulum Motion.

[Karl12]

Would recommend this interview with NASA's Dr Richard Haines and like many other scientists (and governments) over the years he's been quite busy cataloging 'global UFO characteristics'.

When it comes to UFO flight behaviour (and pattern recognition) it also looks like there are quite a number of reports of unknown objects performing a kind of 'pendulum' or 'falling leaf' motion during vertical descent or ascent

Peculiar behaviour such as falling leaf or pendulum motion during vertical descent has been independently reported many times by UFO witnesses in widely separated parts of the world..

Know I keep on saying it but it's pretty disturbing just how much UFO content has now been deleted from the internet - some of it gets archived so (for posterity) below are some related articles, reports and speculation dealing with UFO 'pendulum' or 'falling leaf' motion - alternate links are provided where possible.

NASA's Paul Hill goes into some detail below about specific UFO flight characteristics and there's a relevant section here taken from NICAP's 'UFO Evidence' report.

Pendulum/Falling Leaf Motion

A curious, but fairly common, flight characteristic of UFOs is a pendulum-like motion (swaying back and forth) during hovering, slow climb, or descent. Witnesses frequently have compared this to the gyrations of a falling leaf.

Side-to-Side Oscillation

A very similar pendulum-like motion, occurring as a UFO travels in a horizontal plane (rather than ascending or descending) has been noticed occasionally. It consists of a side-to-side oscillation as the UFO proceeds in a constant direction.


SECTION XII - PATTERNS

• Paul Richard Hill - NASA Aerodynamicist:

Maneuvers. Hovering at any altitude is common. UFOs hover close to the ground for long times instead of landing. The different maneuvers include:



a. falling leaf or UFO-rock like a coin falling in water

b. silver-dollar wobble - like a coin with a slow spin on a flat surface. This maneuver is consistently observed at the end of a rapid descent as the UFO initiates hovering

c. acute-angle turn with rapid stop at the vertex

d. sudden reversal of direction

e. bank and turn - exactly like conventional aircraft

f. straight-away speed run either horizontal or vertical

g. tilt to maneuver "UFOs tilt to perform all maneuvers ... they sit level to hover, tilt forward to move forward, tilt backward to stop, bank to turn"

UFO Research of NASA's Paul R. Hill.

UFOCAT - the massive sighting database compiled by Dr Hynek's CUFOS organisation also used to have lots of open info on the subject but unfortunately many links are now defunct.

The UFOCAT documents 180 instances of pendulum or “falling leaf” maneuver by UFOs. In two of those instances (Reports Number 16,982 and 87,715) the maneuver is executed in reverse. The UFO falls like a leaf UPWARDS before accelerating away. UFOs are perfectly capable of going straight up or down. Belgian radar recorded a drop by a UFO of 3,000 feet in 2 seconds. So why the occasional pendulum or falling leaf motion?

UFOCAT Link / PDF

Also a nice section here on falling leaf pattern from Otto Binder's (marvellous) book 'What We Really Know About Flying Saucers'.

Falling Leaf Pattern


Remarkably consistent, described over and over the same way by countless witnesses, is the "falling leaf" (or"dead leaf") manner of a UFO's losing altitude when it wants to descend a short way. This is often during the time it is approaching the ground for a landing, or for low-level and treetop flight.


Outstanding examples are:



• September 26, 1954, Col du Chat, France . Fifteen people saw a disc like an "inverted plate" that was descending "like a falling leaf."


• February 24, 1958, Salvador . Three people observed a hemispherical UFO descend from 90 feet to 9 feet above the ground by imitating a "falling leaf."


• September 20, 1952, Topcliffe, Yorkshire, England. Following a Meteor-Jet, a silvery disc descended with a "pendulum motion


• July 1957, Azusa, California. A disc-shaped UFO with a row of amber lights on its rim descended with a "wobbling motion."


• December 25, 1960, Cottonwood, Minnesota. A family observed a hemispherical ball slowly flutter down like a "falling leaf."


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