Airfoil Or Triangular Craft
An airfoil or triangular craft refers to a class of unidentified aerial vehicle described by multiple witnesses as an isosceles triangle shape, with the longest side measuring approximately 300 feet. Unlike disc-shaped or egg/bell-shaped craft — which appear across a much wider range of UAP accounts — triangular craft are considered a comparatively rare morphological category, leading researchers to treat sightings of triangular objects as potentially indicative of a more recently recovered or less prolific non-human vehicle type, or alternatively of classified reverse-engineered airframes derived from such vehicles.
Description
The characteristic isosceles profile distinguishes the airfoil-type triangular craft from the equilateral triangular craft described in accounts such as Borland's Triangular Craft Sighting at Langley Air Force Base. The two profiles are treated as potentially distinct vehicle types rather than variants of a single design, since the structural geometry implies different aerodynamic or propulsive design principles.
At approximately 300 feet on the longest side, a craft of this size would be substantially larger than any conventional fixed-wing military aircraft. The scale combined with the observed silent flight behavior characteristic of UAP accounts — no audible propulsion, no rotor wash — is what leads witnesses and researchers to distinguish these objects from conventional military platforms.
Rarity and Significance
The rarity of triangular craft observations relative to disc or ovoid accounts is cited as a reason for treating the triangular form factor as potentially newer technology. One interpretation within the UAP research community is that if triangular craft represent recovered non-human vehicles, fewer samples were recovered — explaining why sightings are rarer. A competing interpretation holds that triangular craft are human-built reverse-engineered derivatives — consistent with the TR-3B-type craft discussed in declassified AATIP research themes — and their rarity reflects limited production numbers under classified programs.
The "Hidden Wing" investigation by UAP Gerb treats the triangular craft morphology, whether in the equilateral form (Borland's Langley sighting) or the isosceles airfoil form, as one of the key vehicle signatures associated with the alleged Hidden Wing portfolio of Air Force test and evaluation programs at the Western Ranges.