Mobile launcher platform
Mobile Launcher Platform2 (MLP2) (formerly called the Mobile Launcher2 or ML2) was used for the uncrewed Apollo 6 mission, followed by three crewed Apollo launches; Apollo 9, Apollo 12 and Apollo was subsequently used for the launch of Skylab on a Saturn V in 1973.. Following the launch of Skylab, ML2 was the second of the Mobile Launchers to be converted for use by the Space Shuttle.