«Single Stage Rocket Technology (SSRT) DC-X Test Program Environmental Assessment». Defense Technical Information Center(en inglés estadounidense) (Washington: The Strategic Defense Initiative Organization (SDIO)) (AD-A265 940). junio de 1992. Consultado el 1 de septiembre de 2019. «suborbital, recoverable rocket (SRR) capable of lifting up to 3,000 pounds (1361 kg) of payload to an altitude of 1.5 million feet (457 km); returning to the launch site for a precise soft landing; with the capability to launch for another mission within three to seven days».