The Fiat G.91 is a jet fighter aircraft designed and built by the Italian aircraft manufacturer Fiat Aviazione, which later merged into Aeritalia.

According to Aviation Week, Project Aurora referred to a group of exotic aircraft, and not to one particular airframe. Funding of the project allegedly reached $2.3 billion in fiscal 1987, according to a 1986 procurement document obtained by Aviation Week.

Whispers about the Aurora, a supposedly classified hypersonic aircraft, have resonated in aviation circles since the 1980s. Yet evidence of this enigmatic triangular craft is as elusive as the wind.

夏爾·戴高樂號航空母艦 （法語： Charles de Gaulle R91）是一艘隸屬於 法國海軍 的核子動力航空母艦，也是 法國 現役的唯一一艘 航空母艦。 戴高樂號於2001年5月18日正式成軍，是法國史上擁有的第十艘航空母艦，其命名源自於法國軍事將領與政治家 夏爾·戴高樂。 戴高樂號是法國第一艘核動力航空母艦，也是第一艘及現時唯一一艘不屬於 美國海軍 的核動力航空母艦。

2023年10月30日 · Rumored to have been developed in the 1980s or 1990s, the SR-91 “Aurora” is purported to be a Mach 4+ hypersonic, clandestine, high-altitude Intelligence, Surveillance, and Reconnaissance (ISR)...

夏尔·戴高乐号航空母舰（法语： Charles de Gaulle R91 ）是一艘隶属于法国海军的核子动力航空母舰，也是法国现役的唯一一艘航空母舰。 戴高乐号于2001年5月18日正式成军，是法国史上拥有的第十艘航空母舰，其命名源自于法国军事将领与政治家 夏尔·戴高乐 。

2023年10月29日 · Rumors of a classified hypersonic aircraft known as Aurora have permeated aviation circles since the 1980s, but evidence of this triangular jet remains as sparse as ever. Could it be possible that...

2021年12月13日 · The document was authentic, and “Aurora” was a real plane—but it wasn’t the plane that everyone thought it was.

戴高乐号航空母舰（英文：French aircraft carrier Charles de Gaulle，法文：porte - avions français charles de gaulle，舷号：R91），是法国第一艘核动力航空母舰和世界上唯一一艘非美国海军隶下的核动力航空母舰，也是法国海军目前唯一一艘现役航空母舰，亦为法国海军旗舰。

The continually growing evidence suggests that the answer to this question is YES. Perhaps the most 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.