Exploration Upper Stage
Rocket stage in NASA's Space Launch System / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about Exploration Upper Stage?
Summarize this article for a 10 year old
SHOW ALL QUESTIONS
The Exploration Upper Stage (EUS) is a rocket stage under development that will be used for future flights of NASA's Space Launch System (SLS). Used on SLS Block 1B and Block 2, it will replace the SLS Block 1's Interim Cryogenic Propulsion Stage. The stage will be powered by four RL10C-3 engines burning liquid oxygen and liquid hydrogen to produce a total thrust of 433.1 kN (97,360 lbf). The EUS is expected to first fly on Artemis 4 in 2028.[7]
Quick Facts Manufacturer, Country of origin ...
![]() 2020 design of the Exploration Upper Stage | |
Manufacturer | Boeing[1] |
---|---|
Country of origin | United States |
Used on | SLS Block 1B and Block 2[2] |
General characteristics | |
Height | No more than 18 m (59 ft) |
Diameter | 8.4 m (28 ft) (LH2 tank) 5.5 m (18 ft) (LOX tank)[3] |
Propellant mass | 278,000 lb (126,000 kg)[4] |
Empty mass | 31,110 lb (14,110 kg)[5] |
Engine details | |
Powered by | 4 RL10C-3[6] |
Maximum thrust | 433.1 kN (97,360 lbf) |
Specific impulse | 460.1 seconds (vacuum) |
Propellant | LOX / LH2 |
Close