Rocket Motor Ground Tests
The rocket motor main components, the composite nitrous oxidizer tank and CTN (unitized motor case/throat/nozzle) have been in development at Scaled since mid 2001. Those components passed their qualification tests by late 2002. The other motor components (controller, valve, injector, aft bulkhead, head insulation, ignition system and fuel) are being developed and tested by two competing subcontractors. The two companies are eAc and SpaceDev .
Due to the competitive nature of the current rocket ground test program, test details cannot be divulged. The following are the dates of the full-scale motor firing events. This list does not include sub-scale or cold flow tests. All these tests have used full-scale, flight-article components, mounted on our mobile rocket motor test stand. The test stand uses the same tank, CTN and adjacent structure as SpaceShipOne.
Due to the competitive nature of the current rocket ground test program, test details cannot be divulged. The following are the dates of the full-scale motor firing events. This list does not include sub-scale or cold flow tests. All these tests have used full-scale, flight-article components, mounted on our mobile rocket motor test stand. The test stand uses the same tank, CTN and adjacent structure as SpaceShipOne.
| VENDOR | DATE OF TEST | INFORMATION |
|---|---|---|
| SpaceDev | 21 Nov 02 | |
| eAc | 16 Jan 03 | |
| eAc | 22 Feb 03 | |
| SpaceDev | 12 Mar 03 | |
| SpaceDev | 19 Mar 03 | |
| eAc | 22 Mar 03 | |
| SpaceDev | 03 June 03 | |
| eAc | 19 June 03 | |
| eAc | 24 July 03 | full-duration |
| SpaceDev | 31 July 03 | full-duration |
| eAc | 4 Sept 03 | full-duration |
| SpaceDev | 18 Nov 03 | Flight motor qualification run. A ground test to validate the first two planned powered flights of SpaceShipOne. All performance requirements and safety limits were met. |
Pilot Bios
Press Releases
- Unveiling of the Tier One Program
- X-Prize Press Release
- The SpaceShip Company
- More Press Releases ...

Founded in 1982 by Burt Rutan, Scaled has broad experience in air vehicle design, tooling and manufacturing, specialty composite structure design, analysis and fabrication, and developmental flight tests of air and space vehicles.
Founder, 





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