An artist’s conception of the Aurora aircraft Via Wikipedia Related Article: List of Top 15 Secret Military Aircraft projects in history. The well-known instance which provides evidence of such an aircraft’s existence is the sighting of a triangular plane over the North Sea in August 1989 by oil-exploration engineer Chris Gibson. The Aurora Project. Aurora was a mid-1980s American reconnaissance aircraft development project, that did a large amount of research into triangular shaped aircraft including the B-2 Advanced Technology Bomber (the one that uses the gravito-electric T.T. Brown Effect for additional lift), The SR-91, The SR-75 Penetrator, and the TR-3B Astra or TR-3 Black Manta.

Aurora LightningStrikeThe Vertical Take-Off and Landing Experimental Aircraft ( VTOL X-Plane) program is an research project sponsored by the (DARPA). The goal of the program is to demonstrate a aircraft design that can take off vertically and efficiently hover, while flying faster than conventional.

There have been many previous attempts, most of them unsuccessful.A helicopter with a conventional rotor layout has a theoretical top speed of 200 knots (230 mph; 370 km/h), after which it suffers from. Some designs have successfully created hovering and high-speed aircraft, including the that can fly at 275 knots (316 mph; 509 km/h) and the that flew at 260 knots (300 mph; 480 km/h), but both made significant aerodynamic compromises to hovering efficiency or range. DARPA's goal is to demonstrate a VTOL aircraft that can achieve a sustained top speed of 300 to 400 knots (345 to 460 mph (555 to 740 km/h)).All competitors for the program opted to demonstrate their concepts using an even though it was not required, but the technologies are intended to be applied to manned aircraft as well.was selected to create a test design, which will fly in 2018.

Contents.Requirement and programme DARPA announced the programme in February 2013 with a requirement to create a new aircraft that uses the best features from both vertical take-off and landing technology and that used for conventional aircraft. ^ - News.USNI.org, 19 March 2014. Warwick, Graham.

', 24 March 2013. Accessed: 25 May 2014. ^ Whittle, Richard. ', October 2015.

Accessed: 26 September 2015. Defense-Update.com, 18 March 2014. ^ - Flightglobal.com, 4 March 2016. 25 February 2013. Retrieved 22 December 2013.

^. Retrieved 22 December 2013. ^. 20 December 2013. Retrieved 22 December 2013. Niles, Russ (23 December 2013).

Retrieved 26 December 2013. Richard Whittle. New York Post.

From the original on 11 October 2015. Retrieved 11 October 2015. Flightglobal.com, 18 March 2014.

Aviationweek.com, 20 December 2013. Aurora press release, 4 February 2014. Ainonline.com, 21 March 2014. Armedforces-Int.com, 25 June 2014.

Defensetech.org, 28 August 2014. Defenseone.com, 4 March 2016. Breakingdefense.com, 4 March 2016. Defense-Update.com, 3 March 2016.

Ainonline.com, 6 March 2016. Flightglobal.com, 18 April 2016. Gizmag.com, 18 April 2016. Gizmag.com, 5 April 2017. Graham Warwick (Apr 24, 2018). Aviation Week Network.External links External image only works in Microsoft Internet Explorer.

He wrote: 'I do believe its real, but I also believe this is alien technology used by the USAF. Its a new generation TR3B USAF craft.“It has the three glowing orbs just as the TR3B has.' The US military puts 98 per cent of its top secret test flights outside of the US, so that no one will know who created them.'

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Be we do, don't we? Just like in the 1980-90s, the US flew an alien craft over England called the Aurora Project.' It’s nothing new here, but I just wanted to shed some light on it, and I hope it helps.' The Aurora Project was an earlier myth about a rumoured mid-1980s American reconnaissance aircraft. They also considered if it could have been a pass of the International Space Station (ISS), but also discounted this.The witness added: 'Well, we've done a bit of research about this and according to the astronomy sites that we have referred to, there were no visible passes of the ISS when this footage was taken.' And it was in view for more than the usual two to three minutes which is the stated time that we can normally get a sighting opportunity of the ISS from the UK.'

A BEAMS Reader, who claimed to be an expert in unusual meteorological phenomena, said he could also rule out this possibility, and believes it must be alien rather than a secret spy craft.He said: 'I have a bachelors degree in the aeronautical and aerospace sciences which naturally would include a great deal of study of unusual meteorological phenomena and that's like nothing I've ever seen or read about.' The reader added he had seen the Northern Lights (Aurora Borealis) several times and what was in the video was nothing like the phenomenon.

He said: 'I grew up during Apollo and lived in Florida so I saw more than a few space launches.' I can with reasonable certainly eliminate rockets and missiles from what we saw in this video.'

One can never completely eliminate the possibility of unknown natural phenomena, however that was a structured self-illuminated object that gave every appearance of changing its form in mid flight.' Any secret military aeronautical vehicles would most certainly not be flown in the controlled class B airspace around a population centre like London.' Those sorts of things are done in remote coastal areas and over the ocean so no wreckage remains.'

It is difficult to question the authenticity of this video from the couples reactions.' They seemed entirely genuine, spontaneous, and unrehearsed.' In my reasonably informed opinion humans did not make whatever that was.'