High Quality Content by WIKIPEDIA articles! Space Launch Complex-6 (SLC-6, nicknamed "Slick Six") at Vandenberg Air Force Base in California is a launch pad and support area. It was originally designed for the launching of the Titan III in support of the cancelled Manned Orbiting Laboratory, and was later rebuilt for the Space Shuttle, which also never used it due to budget, safety and political considerations. It was subsequently used briefly by Athena rockets, before being remodified to support the Delta IV family of unmanned launchers, which have used the pad since 2006. Launches from SLC-6 fly southward into a polar orbit, not eastward as is typical of launches from Florida.