Blue Origin Charon Test Vehicle
Blue Origin is a quiet space company, founded by Amazon's Jeff Bezos. I have high hopes for them, they have a development center in Kent, Washington near the former Boeing Kent Space Center.
"Blue Origin's first flight test vehicle, called Charon, was powered by four vertically mounted Rolls-Royce Viper Mk. 301 jet engines rather than rockets. The low-altitude vehicle was developed to test autonomous guidance and control technologies, and the processes that the company would use to develop its later rockets. Charon made its only test flight at Moses Lake, Washington on March 5, 2005. It flew to an altitude of 316 feet (96 m) before returning for a controlled landing near the liftoff point."
Seen in the Museum of Flight, Seattle, Washington USA.