New Short-Duration Test Firings of SpaceShipTwo’s Engine

ss2_landing_june29-wide
RocketMotorTwo Hot-Fire Test Summaries

Courtesy of Scaled Composites

UPDATE: For some unexplained reason, Scaled Composites edited out all references on its log page to the length of the test firings (5 seconds) on three of the four listings below. I have heard that the other test, which took place on Dec. 6 in Mojave, was relatively short as well, an estimated 10 seconds.

Fire:21
Date:14 Dec 12

Objectives:
Twenty-first full scale flight design RM2 hot-fire. Continued evaluation of all systems and components:
– Pressurization
– Valve/Injector
– Fuel formulation and geometry
– Nozzle
– Structure
– Performance

Results:
All objectives completed. Performed targeted 5 second hot fire as planned. Duration of burn chosen to allow examination of internal geometry.


Fire:20
Date:06 Dec 12

Objectives:
Perform third full scale rocket motor hot-fire at Scaled’s test facility:
– Test stand evaluation
– Data Acquisition system evaluation
– Rocket Motor Controller performance
– Pressurization System Controller performance
– Rocket system performance
– Valve / Injector / Igniter evaluation
– Fuel formulation evaluation
– CTN structural evaluation

Results:
Third full scale firing of a rocket motor at Scaled’s test site under full control of the spaceship’s Rocket Motor Controller (RMC). All objectives achieved.


Fire:19
Date:27 Nov 12

Objectives:
Nineteenth full scale flight design RM2 hot-fire. Continued evaluation of all systems and components:
– Pressurization
– Valve/Injector
– Fuel formulation and geometry
– Nozzle
– Structure
– Performance

Results:
All objectives completed. Performed targeted 5 second hot fire as planned. Duration of burn chosen to allow examination of internal geometry.


Fire:18
Date:02 Nov 12

Objectives:
Eighteenth full scale flight design RM2 hot-fire. Continued evaluation of all systems and components:
– Pressurization
– Valve/Injector
– Fuel formulation and geometry
– Nozzle
– Structure
– Performance

Results:
All objectives completed. Performed targeted 5 second hot fire as planned. Duration of burn chosen to allow examination of internal geometry.