You can watch many TR-3B sightings -here- .
The TR-3B is Code named Astra. The tactical reconnaissance TR-3B first operational flight was in the early 90s. The triangular shaped nuclear powered aerospace platform was developed under the Top Secret, Aurora Program with SDI and black budget monies. At least 3 of the billion dollar plus TR-3Bs were flying by 1994. The Aurora is the most classified aerospace development program in existence. The TR-3B is the most exotic vehicle created by the Aurora Program. It is funded and operationally tasked by the National Reconnaissance Office, the NSA, and the CIA. The TR-3B flying triangle is not fiction and was built with technology available in the mid 80s. Not every UFO spotted is one of theirs.
The TR-3B vehicles outer coating is reactive to electrical Radar stimulation and can change reflectiveness, radar absorptiveness, and color. This polymer skin, when used in conjunction with the TR-3Bs Electronic Counter Measures and, ECCM, can make the vehicle look like a small aircraft, or a flying cylinder--or even trick radar receivers into falsely detecting a variety of aircraft, no aircraft, or several aircraft at various locations. A circular, plasma filled accelerator ring called the Magnetic Field Disrupter, surrounds the rotatable crew compartment and is far ahead of any imaginable technology.
Sandia and Livermore laboratories developed the reverse engineered MFD technology. The government will go to any lengths to protect this technology. The plasma, mercury based, is pressurized at 250,000 atmospheres at a temperature of 150 degrees Kelvin and accelerated to 50,000 rpm to create a super-conductive plasma with the resulting gravity disruption. The MFD generates a magnetic vortex field, which disrupts or neutralizes the effects of gravity on mass within proximity, by 89 percent. Do not misunderstand. This is not antigravity. Anti-gravity provides a repulsive force that can be used for propulsion. The MFD creates a disruption of the Earth's gravitational field upon the mass within the circular accelerator. The mass of the circular accelerator and all mass within the accelerator, such as the crew capsule, avionics, MFD systems, fuels, crew environmental systems, and the nuclear reactor, are reduced by 89%. This causes the effect of making the vehicle extremely light and able to outperform and outmaneuver any craft yet constructed--except, of course, those UFOs we did not build.
The TR-3B is a high altitude, stealth, reconnaissance platform with an indefinite loiter time. Once you get it up there at speed, it doesnt take much propulsion to maintain altitude. At Groom Lake their have been whispered rumours of a new element that acts as a catalyst to the plasma. With the vehicle mass reduced by 89%, the craft can travel at Mach 9, vertically or horizontally. My sources say the performance is limited only the stresses that the human pilots can endure. Which is a lot, really, considering along with the 89% reduction in mass, the G forces are also reduced by 89%.
What you have to remember is, that the 3 rocket engines only have to propel 11 percent of the mass of the Top Secret TR-3B. The engines are reportedly built by Rockwell. Many sightings of triangular UFOs are not alien vehicles but the top secret TR-3B. The NSA, NRO, CIA, and USAF have been playing a shell game with aircraft nomenclature - creating the TR-3, modified to the TR-3A, the TR-3B, and the Teir 2, 3, and 4, with suffixes like Plus or Minus added on to confuse further the fact that each of these designators is a different aircraft and not the same aerospace vehicle. A TR-3B is as different from a TR-3A as a banana is from a grape. Some of these vehicles are manned and others are unmanned.
USAF Top secret nuclear powered flying triangle - The TR-3b.
Click on the picture to enlarge.
He goes on to say some of his soures said the performance is only limited only to the stresses to the human pilots can endure. With 89% reduction in G's what would have been 4.2g limit is now a 40G limit. The TR3B's main propulsion is by three multi-mode thrusters mounted at each corner of the triangle. The craft is a sub mach 9 craft, at 120,000 feet,and below.Its never been tested any higher, so who know its limits. The first pictures ever taken of the TR3B were in Belgium March 31 1990 (LINK), it was again sighted in Idaho in 2000 when it flew within 200 feet of some people camping. The one thing that makes it stick out is the three lights,one on each corner, and one main light in the center
The campers said it was noiseless except for a small huming,when it moved. Rumors that the pending official disclosure of the existence of the TB3R a been around for a while now. Most want to know how it works, but I'm sure its going to be a while before it becomes public.
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