In May 2018, SpaceX’s propulsion engineering lead Tom Mueller said that flight-ready Raptor engines were already in work. The Raptor design would have to be completed and manufacturing work was beginning. Elon Musk just said he was really excited about the propulsion system’s advanced design.
Over the next 12 months, dozens of Raptor engines will be built and many will be put into the first BFS and BFR which will begin hop tests.
An immense liquid oxygen (LOX) tank just arrived at @SpaceX's prospective Boca Chica, TX facility, likely to be dedicated to BFR & BFS testing. @NASASpaceflight forum user "Nomadd" caught some of the first detailed photos, as well as the tank's arrival at SpaceX land on July 11. pic.twitter.com/hr7SeA6BGw
— Eric Ralph (@13ericralph31) July 12, 2018