TR-3B Black Manta: The secret US aircraft with ‘anti-gravity’ technology
March 29, 2026
Have you ever seen or heard stories of a black triangular object hovering at low altitudes? For three decades, the object has been reported as a silent black UFO with bright colored lights in its centre.
It is said to be a secret US aircraft called TR-3B Black Manta. Typically observed at night, the TR-3B is rumoured to have a steady geometry that silently loiters in the air and vanishes like a state change.
The visible bright pulsating lights change through modes, giving the UFO a mysterious look. The aircraft is allegedly a top-secret, anti-gravity reconnaissance aircraft developed by the US military under a black project.
A black project is a classified military project not formally acknowledged by a government or associated authorities.
What is a TR-3B Black Manta, and what is it possibly designed for?
While the existence of the TR-3B UFO is speculative, the strong pattern of sightings in different parts of the world suggests the presence of a purpose-built aircraft. A recent article from Medium, which focused on the physics and engineering of the TR-3B, states that the UFO shows two operational patterns.
A steady power mode showing silent low-altitude hovers for station-keeping, and a pulsed mode revealing state-change transitions through speeds and altitudes. The sightings imply that the TR-3B is purposely designed to perform station control, power transitioning, and thermal management under atmospheric loads.
The Black Manta is speculated to also have what is known as the “anti-gravity” technology. While having no gravity is impossible, counteracting the gravity in various ways can be achieved. The UFO may use nuclear energy to accelerate high-pressure plasma, creating an anti-gravity field around it.
Moreover, specialised thrust generators onboard the UFO offer rapid transitions in speed, orientation, and position. Military.com states that the plasma created through nuclear reactions significantly reduces radar signatures, enhancing the aircraft’s survivability and lethality.
The perceived capability coincides with the TR-3B’s reported sightings at various locations. The aircraft can fly to any part of the world undetected by most air traffic radars and defence systems.
The design elements were determined from hundreds of Black Triangle sightings
The National Institute of Discovery Science (NIDS) conducted an extensive investigation into the black triangle sighting, following the accumulation of over 150 separate reports from the US, Canada, and Europe. All reports suggested the sighting of a large, low-flying triangle object. Based on the NIDS reports and from the accounts of independent aircraft designers, the size, thrust, and payload approximations of the black triangle were estimated.
| TR-3B Black Manta | |
|---|---|
| Length | 600 ft (183 m) |
| Width | 300 ft (91.5 m) |
| Height | 40 ft (12.2 m) |
| Mass | 100 tonnes |
| Horizontal Surface | 180,000 sq.ft |
| Vertical Surface | 94,245 sq. ft |
| Total Surface | 274,245 f sq.ft |
| Horizontal Thrust | 468,000 lbs. / 234 tons |
| Vertical Thrust | 245,037 lbs. / 122 tons |
| Total Thrust | 713,037 lbs. / 356 tons |
| Hull Volume | 3,600,000 cubic ft. |
| Pay Estimate | 200,000 lbs. / 100 tons |
The NIDS concluded that the black triangular-shaped object is a very large, brightly lit, and extremely silent craft. It is mostly sighted near water, including lakes. Moreover, its ability to quickly accelerate from a hovering position suggests the use of powerful nuclear-based technology. The Black Manta may be designed to conduct intelligence, surveillance, and reconnaissance (ISR) missions.
Given the aircraft’s relatively flat triangular shape, as suggested by numerous sightings, a range of advanced systems can be installed. From aperture radars and high-resolution cameras, to Electro-optical/infrared (EO/IR) sensors, the patterns suggest sensing and data-gathering missions.
With its low observability and minimal signatures, the TR-3B seems to operate in specific timeframes while having significantly long station times. Moreover, if Black Manta is indeed a human-built aircraft, it could be designed as a technology demonstrator to explore advanced technologies for future IS aircraft.
Featured Image: NATO NELLE FORZE ARMATE / YouTube Channel
