Project : Aurora

6.00: Aurora Project or "deep black" projects

The "Black Projects" are governmental projects that are considered technological secrets. These can range from laser and particle beams to top secret aircraft. The "Aurora Project" is the name given to one of these types of projects by the industry experts involving two new types of reported aircraft. These aircraft where observed in the south west US and are said to have been developed at highly classified government facilities in the Nevada desert. There are two types of advanced aircraft reported.

One is nick named the "Pulser" aircraft. There have been many sights of this aircraft by several different witnesses. When sighted it has repetitively been described as "A high-speed aircraft characterized by a very loud, deep, rumbling engine noise (1-2 Hz pulse rate) reminiscent of heavy-lift rockets." The smoke trail of the aircraft is described as being segmented and in a linked sausage shape. (Or another good example would be to look at one side of your coat zipper, un-zipped, with the teeth facing you) It is also described as a high-altitude aircraft that crossed the sky at extremely high speeds. Both ground based and airborne observers have reported it to be seen flying at altitudes above 50,000 ft. observers have reported see the aircraft as a single bright light that seldom changed direction, however speed changes where observed. One observer estimated that it covered 350 miles in 6 minutes. (3500 miles/hr)

This this aircraft may indeed exist. There has been research in to what are called Pulsed Detonation Engines (PED's) also refereed to as Pulsed Detonation Wave Engines. These are different type of engine than the pulse jet engines, which is already publicly know, and has been tested in aircraft. The PED's are said to be in laboratory and computer analysis level of development (reported oct of 91) The PED's exhaust emission produces smoke trails that closely match the pulser aircraft. Simulations of theses engines are said to be able to propel large aircraft in the "Mach 0.2-3.0 flight regime"

How PED's work: PED's use shock waves created in a detonation to compress the fuel-oxidizer mixture prior to combustion. A cylinder chamber designed to support the detonation is constructed with a flat forward end which makes up the thrust wall. Air along with fuel is fed into the engine from behind the thrust-wall. The detonation wave created travels forward to the thrust wall at about Mach 4 and compresses the fuel-air mixture, promotes supersonic combustion and causes a pressure rise in the engine. The wave then strikes the thrust wall and rebounds accelerating the combustion products towards the nozzle. Some of the products are ejected by the wave to the outside air-stream through the air inlet openings creating a toroidal vortex out side the engine. Then the cycle repeats.

The said advantages of this type of engine are:

Theoretically a higher fuel efficiency than a "constant pressure engine"
Engines can be produced in many sizes and thrust outputs from a few inches in diameter at a thrust of several pounds to larger one that can output in the thousands of pounds range.
They have high thrust to weight ratio (ie.lighter engine, more thrust)
They are mechanically simple, and have few moving parts.
They could operate in or out of the atmosphere using fuel oxidizers.

There is very little information on the other reported aircraft. It is reported as "A triangular-shaped, quiet aircraft". This craft has been seen by many observers and flying with several F-117 stealth aircraft.

Main Sources:
Aviation Week & Space Technologies, (Oct 1, 90 pp20-23) & 
  (oct 28, 91 pp68-69)

Also See:
Aviation Week & Space Technologies [please note: one of these dates is a
December 24, 1990 pg. 41-44         couple days off, on the actual
June 20,     1991 pg. 20-21         magazine date.]
March 9,     1992 pg. 66-67
May 11,      1992 pg. 62-63

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The X-Files - Aurora.

Synopsis - Beyond Aurora - Dreamship.

Some Aurora Drawings.

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