The maiden flight of Space Exploration Technology Corp .‘s larger and most powerful Falcon Heavy rocket will be a success if it doesn’t blow up on the launch pad, according to Chief Executive Officer Elon Musk.

” This is a test mission, so we don’t want to set expectancies of perfection ,” Musk said on a bellow with reporters Monday ahead of the planned show flight from NASA’s Kennedy Space Center in Florida.” I would consider it a win if it just clears the pad .”

The new rocket, which is expected to take off as early as 1:30 p.m. local period on Tuesday, is a reusable” super heavy” launch vehicle that will allow the closely comprised company to bid on heavier commercial and government payloads. It has doubled the ability of its closest challenger, United Launch Alliance’s Delta IV Heavy. And competitors are watching closely, with Jeff Bezos of Blue Origin LLC and ULA’s Tory Bruno both wishing Musk good luck via Twitter as tourists swarm Florida’s space coast.

Read More: Musk’s New Falcon Heavy Rocket Gets Ready For First Test Flight

In words of designing, Falcon Heavy is basically three of SpaceX’s Falcon 9 rockets strapped together. While one Falcon 9 has nine Merlin engines in its first stage, Falcon Heavy has 27. The Hawthorne, California-based corporation, whose driving principle is to intend rockets for reusability, will attempt to land all three rocket cores for re-use in a later launching and posted an animation on Monday of what the mission could look like.

If the show flight is all very well, Musk said SpaceX would plan to wing its first mission for a paying spacecraft operator in three to six months. If it moves seriously and the pad is destroyed, it is unable to take up to a year to restore the site before launches can resume, though rocket production would continue during that time, he said.

” It will be a really huge downer if it blows up ,” Musk said.” If something is wrong with you, hopefully it goes wrong far into the mission so we at the least learn as much as possible along the way .”

Epic Views

The Falcon Heavy’s show flight is targeting Mars orbit, with Musk’s personal ruby-red Tesla Roadster sports car as the warhead. Musk said that three cameras would be mounted on the Roadster, which should provide” epic views” of the car swimming toward Mars, if everything be applicable to plan.

SpaceX had originally expected the Falcon Heavy would mail two paying tourists around the moon late this year. But Musk wrote on Instagram Monday that SpaceX will likely use its still-in-development “Big F—ing Rocket” for moon missions instead.

” Could do crewed missions to the moon and Mars with orbital refilling, but better to leave that to the BFR program ,” he said. When requested information about the moon schemes during the conference call, Musk declined to give an updated timeline and said that the BFR development is” moving rapidly .”