Aldergrove Boomerang — Saebels

In the late evening of November 24, 1991, multiple witnesses in Aldergrove, British Columbia reported observing an enormous boomerang-shaped craft drifting at low altitude over the community with no engine noise whatsoever. The primary witness, identified in UAP literature as Saebels, was outside when he first noticed the object passing over residential rooftops at an altitude he estimated at no more than 200 to 300 feet — low enough that structural detail was clearly visible against the overcast sky.

The craft's scale was the feature most emphasized by witnesses: it was described as substantially larger than a football field, its wingspan estimated at 300 to 400 feet. The underside displayed a regular array of dim reddish-orange and white lights that did not pulse or strobe like conventional aircraft lighting but maintained a steady glow. Despite its tremendous mass and apparent solidity, the object moved in complete silence — no jet roar, no propeller noise, no mechanical hum, not even the displacement sound one might expect from an object of that size moving through air.

Other witnesses in the area, including neighbors who were drawn outside by Saebels's report, confirmed independently observing the same or a similar object within the same timeframe. The consistency of witness descriptions — regarding the boomerang or V-shape configuration, the estimated size, the lighting pattern, and critically the total absence of engine sound — gave investigators confidence that the reports described the same object rather than unrelated misidentifications.

The incident was reported to the National UFO Reporting Center (NUFORC) and became part of the UFOBC (UFO British Columbia) case files, which documented a cluster of triangular and boomerang-shaped craft sightings in the lower mainland of British Columbia during the early 1990s. Researchers examining these reports noted that the Aldergrove boomerang was consistent with a broader wave of large, silent, triangular craft sightings across North America during the late 1980s and early 1990s — a period during which similar objects were reported over the Hudson Valley in New York and across Belgium in 1989–1991.

Belgian authorities, confronted with virtually identical reports of enormous, silent, triangular objects hovering at low altitude, conducted the most rigorous official investigation of this type of craft undertaken by any Western government. The Belgian Air Force investigated over 2,000 reports and scrambled F-16 fighters, which obtained radar lock on an object performing maneuvers beyond the capabilities of known aircraft. The similarity between the Belgian cases and reports like the Aldergrove boomerang suggested either a common source or a global phenomenon of unknown origin active during that period.