Skunk Works Aurora

"The evidence supporting the Aurora is circumstantial or pure conjecture, there is little reason to contradict the government's position."

Spiritual successor of the SR-71 Blackbird, the Aurora is rumored to be a Mach 5 capable spyplane. To this day, the black project has never been confirmed by the US government, however, it has not stopped artists from conceptualizing its configuration. Sightings describe an isosceles triangle shaped object leaving behind "donut" shaped contrails, supposedly the byproduct of a RDE (rotating detonation engine).

This rendition of the vehicle is a spaceplane. It can acheive orbit by combining 4 zero-bypass turbojets with 2 kerolox engines.