Experimental Spaceplane (XS-1)

Added: Nov 12, 2013 9:51 am The objective of the Experimental Spaceplane (XS-1) program is to demonstrate a reusable first stage launch vehicle capable of carrying and deploying an upper stage that inserts 3,000 to 5,000 lb. payloads into Low Earth Orbit (LEO), designed for less than $5M per launch for an operational system. Technologies derived from the XS-1 program will enable routine space launch capabilities with aircraft like cost, operability and reliability. The long-term intent is for XS-1 technologies to be transitioned to support not only next-generation launch for Government and commercial customers, but also global reach hypersonic and space access aircraft.

Current space launch vehicles are very expensive, have no surge capability and must be contracted years in advance (i.e., long call up times). For example, the U.S. Air Force's Evolved Expendable Launch Vehicle (EELV) and Minotaur IV launch vehicles have dramatically increased in cost since the inception of the programs. In an era of declining budgets and proliferating foreign threats to U.S. air and space assets the need for responsive, affordable access to space is increasingly critical. XS-1 will directly address the need for small payloads launched using low cost and operationally efficient concepts of employment (CONEMPs) based on a "clean pad" approach. Moreover, it will provide a foundation to build upon for larger launch systems in the future.

It is also envisioned that the XS-1 program will mature many of the key technologies and operational processes needed to enable future hypersonic aircraft and space access vehicles. Missions performed by such follow-on vehicles could include hypersonic technology maturation and routine global reach intelligence, surveillance and reconnaissance (ISR) as well as other military applications. The potential to transition XS-1 designs, technology and corresponding operating concepts to future aircraft is an important opportunity for the program.