SpaceX this week is preparing to launch Falcon Heavy, the biggest rocket in the company's history, for the first time. From a report: The 230-foot-tall three-booster launcher is scheduled to blast off Tuesday between 1:30 and 4:30 p.m. ET. SpaceX says Falcon Heavy is the most powerful rocket in the world. SpaceX's founder, Elon Musk, wanted this test launch to happen as early as 2013, though he recently said it could end in an explosion. Instead of putting a standard "mass simulator" or dummy payload atop Falcon Heavy, Musk -- who once launched a wheel of cheese into orbit -- will put his personal 2008 midnight-cherry-red Tesla Roadster on top of the monster rocket. In an Instagram post over the weekend, Musk also revealed that the car would carry a dummy driver, which Musk is calling "Starman," wearing a SpaceX space suit. "Test flights of new rockets usually contain mass simulators in the form of concrete or steel blocks. That seemed extremely boring," Musk said in an Instagram post in December, adding that the company "decided to send something unusual, something that made us feel." However, all rocket payloads need a permit from the Federal Aviation Administration to launch, and Musk's sleek electric car is no exception. The FAA granted SpaceX that permission on Friday in a staunchly formal notice, which Keith Cowing posted on NASA Watch.