Developmental Progress

The initial Advent concept used parallel (side by side) stages with the payload on top of the orbiter stage. This concept facilitated ocean operations, making it easy to mount the orbiter stage onto the booster stage. The payload was then to be loaded onto the orbiter stage. However, recent analysis indicates that series stages; the orbiter and payload on top of the booster, reduces aerodynamic interference and is likely to reduce cost more than it increases ocean operations cost. The early configuration shown here may be altered as the analysis is more thoroughly studied.

Advent Launch Services has created two scale models of the Advent vehicle to illustrate the concept. One is for the ANSARI X PRIZE system and the other for illustrating the all-up orbital delivery system.

An engineering prototype model has been used for aerodynamics testing A radio controlled flight test model is scheduled for test in the near future.

The Xprize entry is shown in the shop before the outer cover was applied. Also, the cryogenic checkout is shown. The propulsion system for the ANSARI X PRIZE was tested in June 2004. The photograph shown is derived out of the video recording of the test. Two successful engine runs were accomplished. However, an oxygen servicing line was overheated by the rocket plume, causing the line to rupture. The resulting fire damaged the Xprize entry to the extent that repairs could not be made before the prize was won by Bert Rutan.

Additional engine testing is required and negotiations are in progress with NASA's Stennis test facility in Mississippi.