Jeff Bezos’ Blue Origin space venture says it’s put its orbital-class New Glenn rocket through its last major test in preparation for its first-ever launch from Cape Canaveral Space Force Station in Florida.

“All we have left to do is mate our encapsulated payload … and then LAUNCH!” Blue Origin CEO Dave Limp said in an update posted to the X social-media platform.

Today’s integrated vehicle hotfire test took place just hours after the Federal Aviation Administration issued a five-year license for New Glenn launches and landings. The first launch hasn’t yet been officially scheduled but is likely to take place soon. “We are really close, folks,” Limp said in an earlier update on X.

New Glenn, which is named after the late astronaut and senator John Glenn, has been in the works for more than a decade. The first launch will send up Blue Origin’s Blue Ring Pathfinder, a demonstrator spacecraft that will test the communications, power and control systems for the company’s Blue Ring space mobility platform.

During today’s pre-launch rehearsal, all seven of New Glenn’s first-stage BE-4 engines fired simultaneously for 24 seconds while the booster was held down on the pad. The engines were brought up to 100% thrust for 13 of those seconds.

At their maximum, New Glenn’s first-stage engines are designed to generate 3.8 million pounds of thrust at liftoff, which is about half the thrust that was produced by the Saturn V rocket of the Apollo era. Limp wrote that the seven BE-4 engines “produce enough horsepower to propel two Nimitz-class aircraft carriers at full tilt.”

Jarrett Jones, Blue Origin’s senior vice president for New Glenn, said today’s hotfire test was “a monumental milestone and a glimpse of what’s just around the corner for New Glenn’s first launch.”

“Today’s success proves that our rigorous approach to testing — combined with our incredible tooling and design engineering — is working as intended,” Jones said in a news release.

Blue Origin says it has several New Glenn vehicles in production at its Florida factory, and has filled out a “full customer manifest” for launches in the months ahead. High-profile missions include satellite launches to low Earth orbit for Amazon’s Project Kuiper broadband constellation and the launch of twin orbiters for NASA’s ESCAPADE mission to Mars.

New Glenn’s first launch will be part of the certification process for the U.S. Space Force’s National Security Space Launch program.