XCOR Aerospace has been in the aerospace business since 1999. They're headquartered at the Mojave Spaceport just down the tarmac from Virgin Galactic and their specialty is re-usable liquid fueled rocket engines.
A big project is a joint-venture with Boeing to develop a very low cost 30,000 lb-f/30 kilo-Newton 2nd stage liquid hydrogen engine for boosters that could easily be scaled way up. They have also developed a reciprocating piston liquid hydrogen pump that could further cut booster costs by replacing the very expensive turbo-pumps currently in use. Lots of interested parties for that one.
Then there is the project that is starting to get a lot of attention, and customers for when it flies - the Lynx suborbital spaceplane. Lynx is on one hand like SpaceShipTwo, and on the other hand very different.
SS2 - Lynx comparisons:
SS2 is 60ft/18.29m long with a 27ft/8.23m wingspan.
Lynx is 30ft/9m long with a 24ft/7.5m wingspan
SS2 is launched from the White Knight Two mothership at 50,000 feet.
Lynx takes off directly from the ground, requiring a very short runway.
SS2 uses a hybrid solid/liquid engine; rubber fuel, nitrous oxide oxidizer.
Lynx uses 4 re-usable liquid rocket engines; kerosene fuel, liquid oxygen oxidizer.
SS2 carries 6 passengers and a crew of 2.
Lynx carries 0-1 passengers and a crew of 1.
SS2 passengers will pay $200,000 at first
Lynx passengers will pay about $100,000 at first
SS2 passengers will be able to de-seat and float around and look out through portholes.
Lynx passengers will have to remain seated, but the cockpit has a panoramic view.
SS2 can only fly from spaceports with a runway capable of handling White Knight Two and refurbing its hybrid engine
Lynx can fly from short runways, and the fuel/liquid oxygen handling can be done using a portable cart.
SS2 can carry internal experiments and mount external micro-satellite size payloads.
Lynx can do the same, but it can also launch small orbital satellites from a Dorsal Pod on its back, or even carry small telescopes for missions like NASA's Sophia flying telescope - but much higher.
These missions are not theoretical - they are sold missions and Lynx is very, very real!
This is for Neoadorable: they are working on a larger, orbital, Lynx-like vehicle that will also take off from a runway, but using a fly-back booster.
Pics below with appropriate labeling -
Flight profile animation
Lynx spaceplane

Lynx cutaway

Lynx cockpit cutaway - payloads

Lynx with Payload Pod

Lynx launching satellite (or ??) from the Dorsal Pod

Lynx with telescope in Dorsal Pod







