XERUS LYNX

Xerus is a two-person reusable spaceplane proposed by XCOR Aerospace, which takes off and lands like a conventional aircraft. It is capable of climbing suborbitally to 100km using a cluster of reusable rocket engines developed by XCOR to use non-toxic propellants. After a short period of weightless free fall the vehicle then re-enters the atmosphere. While the primary market for Xerus is space tourism, the vehicle is also being targeted at microsatellite delivery and suborbital science payloads.
XCOR's Lynx, announced in March of 2008, is a follow-on design based on Xerus. Like Xerus, Lynx is a two-person suborbital spaceplane designed for the space tourism market but also aimed at science and research applications.
XCOR's primary business is the development of reusable rocket engines, in pursuit of which they previously developed and flew the EZ-Rocket airplane as a demonstrator and test bed for their reusable rocket technology. Much of the engineering team previously worked on the propulsion systems of Roton at the former Rotary Rocket company.