Delta Clipper Experimental Advanced (DCXA) Reusable Launch Vehicle

The DC-X, short for Delta Clipper or Delta Clipper Experimental, was an unmanned prototype of a reusable single stage to orbit launch vehicle built by McDonnell Douglas in conjunction with the DOD’s SDIO from 1991 to 1993. After that period it was given to NASA, who upgraded the design for improved performance to create the DC-XA.