UFO Waves & Flaps

Concentrated bursts of reporting in time and space — ufology's temporal navigation layer, from the 1896 Mystery Airships to the 2024 drone flap.

November 1896 – May 1897

The Mystery Airships

United States (California first, then the Midwest and Texas)

Pre-Wright-brothers America, saturated with Jules Verne and with real dirigible experiments in the press. Witnesses reported cigar-shaped airships with searchlights, propellers, and occasionally human 'inventors'…

May – December 1946

The Ghost Rockets

Scandinavia (Sweden foremost), spreading across Europe

One year after WWII, projectile-like objects crossed Scandinavian skies, some reportedly crashing into lakes; Swedish military dredging found nothing. With Soviet-occupied Peenemünde nearby, the assumption was Russian…

1944 – 1945

The Foo Fighters

European and Pacific theaters of WWII

Allied (and, files later showed, Axis) aircrews reported glowing balls of light pacing their aircraft through evasive maneuvers. Each side suspected the other's secret weapon. The name came from the Smokey Stover comic…

June – July 1947

The Summer of the Saucers

United States (nationwide within two weeks of Arnold)

Kenneth Arnold's June 24 sighting near Mt. Rainier — nine crescent objects 'skipping like saucers' — was misrendered by the press as 'flying saucers', and within days America saw them everywhere. On July 8, Roswell Army…

April – December 1952 (peak July)

The 1952 Flap & the Washington Merry-Go-Round

United States, focal point Washington D.C.

The biggest official flap in U.S. history. On the weekends of July 19-20 and 26-27, unknowns tracked on radar at Washington National Airport and Andrews AFB — with simultaneous visual and airborne confirmations —…

September – November 1954 (peak October)

The Great French Wave

France, spilling into Italy, Spain, and Latin America

The densest close-encounter wave ever recorded: landed domed objects on country roads, paralysis beams, and small suited occupants, reported by farmers and gendarmes across rural France at a rate of several per night.…

July 1965 – late 1967

The Mid-Sixties Wave

United States (nationwide), with strong echoes in South America and Australia

The wave that broke the Air Force. Blackout-night sightings over the Northeast (1965), the Exeter close encounters, police chases in Ohio, a schoolyard mass sighting in Melbourne (Westall), and a documented 'crash-dive'…

August – November 1973 (peak October)

The Great 1973 Flap

United States, strongest in the Southeast and Midwest

With Blue Book dead, the biggest post-war flap had no official landing place — reports went to police, press, and the new civilian networks (MUFON, founded 1969, came of age here). October 1973 delivered Pascagoula's…

August 1977 – early 1978 (Operação Prato: October-December 1977)

Colares & Operação Prato

Ilha de Colares and the Baixo Amazonas, Pará, Brazil

The most physically aggressive wave on record. Luminous objects — locals called them 'chupa-chupa' (sucker-sucker) — descended nightly over fishing villages, projecting beams that left burns, puncture marks, anemia and…

November 29, 1989 – April 1990 (long tail to 1991)

The Belgian Triangle Wave

Belgium (Eupen, Wallonia, Brussels corridor)

The definitive black-triangle wave: silent, slow platforms with three corner lights, reported by gendarmes, air-traffic controllers, and thousands of citizens. On the night of March 30-31, 1990, Belgian F-16s scrambled…

March 13, 1997 (with an Arizona reporting spike through spring 1997)

The Phoenix Lights

Arizona, USA (Phoenix–Prescott–Tucson corridor)

The largest mass sighting in modern U.S. history — actually two events: an enormous silent V of lights (many insisted one solid craft blotting out stars) crossing the state around 8pm, and a string of stationary lights…

November 2004 – present (public from December 2017)

The Navy Encounters & the UAP Era

U.S. training ranges (Pacific off San Diego; Atlantic off Virginia), then worldwide reporting

The wave that renamed the subject. The USS Nimitz 'Tic Tac' encounter (November 2004: radar drops from 80,000 ft to sea level in seconds, pilot visual by Cmdr. David Fravor, FLIR video) stayed classified-adjacent until…

November 2024 – January 2025

The New Jersey Drone Flap

New Jersey and the U.S. Northeast

A fully modern flap: thousands reported large 'drones' with unusual flight behavior over New Jersey, near military sites and critical infrastructure. Congress demanded answers; the White House ultimately attributed the…