https://techcrunch.com/2018/02/06/spacexs-historic-falcon-heavy-successfully-launches/

SpaceX has had a very good first test of its Falcon Heavy rocket, the heavy-lift orbital vehicle that can carry twice the weight of its closest competition in active operation. The massive, three-booster rocket took off from Cape Canaveral in Florida as planned on Tuesday at 1:30 PM EST, lifting off from Kennedy Space Center’s LC-39A.

This is a historic moment for SpaceX, since it has been aiming to build and launch the large capacity rocket since 2011. Initially, the planned schedule had targeted 2013 as a launch window, but various delays and setbacks pushed down its inaugural flight – until today. Musk has previously described SpaceX’s early views on how hard it would be to build this rocket as “naive,” to account in part for the considerable departure from that early timetable.