Since 1955, it had been suspected that extraterrestrial technology had been used in several secret projects carried out by the US military.
A photo, presumably of one of the Silver Bug project saucers. © Image credit: public domain 
Also known as USAF Project 1794 or WS-606A, Project Silver Bug was conceived by the Air Force with a clear objective: to develop an impeccable flying craft. To do this, they partnered with a Canadian company based in Ontario called Avro Aircraft Limited. Thus, the creation of a ship capable of taking off and landing vertically and reaching competition speeds at more than 3,000 meters high began. 
The Silver Bug Project and an advanced ship
The official report revealed that Project Silver Bug was canceled in September 1961, mainly due to problems flying at high altitudes. However, since 1955, it was already suspected that extraterrestrial technology had been used. Therefore, for many, its cancellation only confirmed this rumor.
Many researchers expressed doubts about the declassification report of the National Archives, since before this, the government did not provide any explanation about the project. This increased uncertainty around its true nature.
What was the real objective of the project? Why was it cancelled? There are multiple versions about it; some believe that a series of fatal accidents during consecutive experiments led to their cancellation. This suggests that the prototype ship was so dangerous that the staff panicked. Other theories suggest that extraterrestrial technology or even Vril energy was used.
In 1922, Dr. Winfried Otto Schumann, a professor at the Munich University of Technology, discovered the resonance effect of the earth-air-ionosphere system, known as Schumann waves, and developed a prototype circular spacecraft powered by Vril energy. 
One of the leaked Project Silver Bug plans reveals intriguing details:
- Crew: 2
- Capacity: 1 observer / engineer
- Diameter: 18 feet (5.5 m)
- Height: 3 ft 6 in (1.07 m)
- Wing area: 254 square feet (23.6 m²)
- Curb Weight: 3,000 lbs (1,361 kg)
- Maximum takeoff weight: 5,560 lb (2,522 kg)
- Image credit: Wikimedia Commons
According to some experts, it is a vital energy concentrated inside each planet, with unlimited powers and that can be disciplined and used as fuel for all types of machines.
Land-based flying saucers, although they had some setbacks such as the crash of the manned disk during its maiden flight, showed notable progress. A more advanced five-meter version called “RFZ-2” flew successfully. This ship was acquired in 1944 by the E-IV SS Division of Hitler’s Third Reich. 
These ships were combined with antigravity turbojet systems and conventional propulsion, allowing them to rise vertically. Although some designs, including the Silver Bug Project, earned a bad reputation for their need for extensive maintenance, the antigravity Vril designs showed much more efficiency.
The Vril’s giant gyroscopes could levitate by generating their own gravitational fields. Its characteristics included turns of up to 90 degrees and speeds of up to 12,000 kilometers per hour at right angles without any sensation of movement or inertia.
Although for a long time the Silver Bug Project was considered an urban legend, the declassification of files increasingly reveals the truth about the UFO issue and the terrestrial constructions developed using these technologies.
