If it's a success, Falcon Heavy will be the most powerful and cheapest way to launch heavy payloads into space.
"If we are successful in this, it is game over for all the other heavy lift rockets," Musk said Monday evening on a press call.
The Falcon Heavy has three boosters attached to each Falcon 9 rocket, and SpaceX has become quite good at recovering them for refurbishment and reuse.
Musk said it was designed to be reused more quickly than the Falcon Heavy.
It would need extra testing and provide more power than what planned future Falcon Heavy missions would require.
If Falcon Heavy blows up the launchpad, rebuilding will take nine months to a year, Musk said.
"It's either going to be an exciting success or an exciting failure â I'd say tune in," Musk said. »