XMB Booster Engine

 is a world object in Fallout 4.

Characteristics
The XMB Booster Engine is located in the ArcJet Systems building in the western Commonwealth

History
The XMB Booster Engine was a nuclear propulsion system developed by Dr Rory McClellan. The rocket was commissioned by the USSA as the main propulsion for the Mars Shot Project. ArcJet began developing the XMB Booster Engine in 2075, even before it had won the USSA contract. CEO Thomas Reinhardt, eager to deliver on its first Agency contract, hired Dr. Rory McClellan, a private military contractor, to help develop the Booster. Great progress was made in the first few months. This fortune would be short lived, however. It was in March of 2076 that the project reached a halt. Strict USSA guidelines meant that Dr. McClellan's booster was hundreds of tons overweight. At the same time, the USSA began its public relations campaign, officially announcing the booster July of 2076. This was much to the dismay of Thomas Reinhardt, who hid the setbacks from the press and government. The weight problem was solved in November of 2076, just in time to begin preliminary testing. The rocket successfully passed preliminary tests, but was ultimately delayed by the events leading to The Great War.