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The Delta IX rocket
Fo3 Delta XI Rocket.png
base id00044b3a

The Delta IX rocket was commissioned in 2020 by the United States Space Administration[1] and constructed by REPCONN Aerospace.


The Delta IX was the last of the manned rockets to Earth's moon. Over the next 15 years the Delta IX recorded over 77 successful launches making it one of the most successful rockets in American history. However, after these 15 years, all the remaining Delta IX rockets were converted for U.S. military purposes, and the crew and instrument sections were replaced with nuclear warheads.[1] The last manned mission to the Moon occurred in 2052.[2]

The rocket, developed entirely by USSA scientists, was a single-stage vehicle with an ejectable crew section or satellite storage bay. The propulsion system was a nuclear-electric derivative drive, using a massive electrical jolt to start the nuclear reaction on launch. The crew section was protected from the radioactive chambers by way of a massive titanium-vanadium disc. The spacecraft had the capability to sustain two astronauts up to a maximum of 24 days. The longest recorded space flight in a Delta IX rocket was the 17-day Zeus 12 mission to the moon.[1]

The Delta IX Rocket in the Washington, D.C. Museum of Technology was donated by the United States Space Administration and by a grant from the United States Department of Antiquities.[3]


The Delta IX rocket is mentioned in the Museum of Technology on a description plate, next to a full-scale model of the rocket itself. There is also a crashed and radioactive Delta IX rocket located in Vernon Square, near the exit to the Statesman Hotel. This rocket was launched at China but malfunctioned and crashed by the hotel instead. There is also a rocket statue in front of the REPCONN Test Site.


The Delta IX rocket appears in Fallout 3 and Fallout: New Vegas.


  • The Delta IX rocket in the Museum of Technology has the real life "Stars and Stripes" on the side, complete with the 50 stars and 13 stripes. The rocket in Vernon Square has the game version.



  1. 1.0 1.1 1.2 Museum of Technology terminals#Delta IX Rocket Information
  2. Museum of Technology placard: "This unusual flag was recovered from the surface of the moon by the very last manned flight to its surface in 2052. The flag is from the old "Valiant 12" Virgo III Lunar Lander that touched down November 14, 1969. It's remarkable condition can be attributed due to its construction; the flag is actually made of special materials to withstand the harsh environment of space."
  3. Museum of Technology placard: "The Delta IX Rocket was donated by the United States Space Administration and by a grant from the United States Department of Antiquities."