https://www.cnet.com/news/spacex-falcon-heavy-static-fire-test-launch-elon-musk/

The first demonstration launch of the new biggest rocket in the world could still be weeks away, but first SpaceX is planning to test fire Falcon Heavy's 27 engines on launch pad 39-A at NASA's Kennedy Space Center as soon as Tuesday.

SpaceX founder and CEO Elon Musk has said Falcon Heavy, which is basically three Falcon 9 rockets strapped together and attached to a single upper stage, will be the most powerful rocket since the Saturn V beast that took Apollo astronauts to the moon. It will also pack more than twice the punch of the next largest rocket system currently in use today.