The fastest man-made object, unofficially, is by the Pleiadean Empire.
This was a flying saucer, which I think was dead-manned on the throttle, about fourteen times the speed of light or greater, periceing the wall of the universe, till this distance was equidistant or greater than this actual real-time sphere.
The fastest object claimed by humanoids, was the acceleration phase as told in the Andreessen Affair Book One, of the Gem Worker Robots, going some fifteen times the speed of light, to one of the God-points, of the Gem continnum.
In universal speed, is different from out of the universe speed.
One of the fastest saucer.crafts, belong to the Pleiadean Empire, at a high speed just under light, but there are others so this is relative.
The Voyager Deepest spacecraft, by Earth is also pretty fast.
The quickest object accelerated on Earth, I believe or test projectiles, short from railguns, at hypervelocity speeds, in atmosphere.
The quickest new aircraft, I believe in the Aurora, air space craft, which has an explosive out of airframe method of propulsion, where the cavity shape of the aft portion of the engine, acts as the shape in which the fuel is detonated.
The fastest historical craft, was the SR-71, CIA run A-12 series, with twin engines, by Marquette, that had rotating geared in and out front engine diffuser spikes.This aircraft was declared a historic active aircraft by Senator Byrd, of West Virginia.
The Habu has offered unbelievable performance as an aircraft, by outflying high set top of the line Russian surface to air missiles, in a said attempt to photograph Chinese nuclear atomic test.
Habu is a remarkable aircraft, as this aircraft designed by Kelly Johnson, as a bulb locked cherry riveted high temperature fastener, with chined, or a dished fluted exterior.The air friction heat generated by the SR-71 is about nine hundred degrees, the same temprature as a very hot oven.
The fastest object I think ever recorded flying into our central sun, was a large comet, traveling over 200,000 miles per hour, into the chronosphere, as recorded by the U.S. Naval Observatory, shortly before it was eaten.
The fastest object noted as a particle emission, was a timed superluminal expansion rate, from a quasar, which exceeded the speed of light over a measured course, via astronomical means, over three times the speed of light.