Relativity Space is a startup focused on 3D-printed rockets that was founded by former SpaceX and Blue Origin engineers

The company has secured a launch site at Cape Canaveral Air Force Station in Florida.

Called Launch Complex 16, it's a historic location where missiles and Space Race hardware were once tested.

The US Air Force awarded Relativity Space a contract for the site, saying they "were impressed" by the company's team and technologies.

Relativity Space seeks to prove that its first rocket, Terran 1, and overall approach is viable in an increasingly competitive market for launches.

Relativity Space, an aerospace startup based in Los Angeles, has secured a historic home in Florida from which to launch its 3D-printed rockets — and the site is sandwiched among the company's biggest competitors.

The company was founded in 2015 by Jordan Noone and Tim Ellis, two young defectors from more-established SpaceX and Blue Origin (respectively). Relativity's big gamble is to use cutting-edge "Stargate" 3D-printing technology to simplify the construction of complex rocket parts and engines by about 100-fold.

The company believes this scheme will allow for more automation in manufacturing, decrease errors, increase reliability, speed up the pace of development, and ultimately lower the cost of access to space dramatically. Relativity's slogan is "Rockets built and flown in days instead of years."

"We believe it will be even more disruptive technology than what you've seen from other private space companies," Ellis told Business Insider. To date, Relativity has raised more than $45 million, some of it from famed investor Mark Cuban, and brought on 60 full-time employees.

Read more: Defectors from SpaceX, Blue Origin, and Tesla are developing a remarkable technology called 'Stargate' to help colonize other planets

Relativity's first make-or-break goal is to build, test, and launch a 100-foot-tall orbital rocket that it calls Terran 1.

But to prove Terran 1 works — not to mention Relativity's overall 3D-printing approach — the startup needs a place to launch the rocket.

On Thursday, Relativity announced that it has won a competitive contract from the US Air Force to retrofit and exclusively use Launch Complex 16 (or LC-16) at Cape Canaveral Air Force Station in Florida.

What Launch Complex 16 might look like after Relativity Space is done improving it. Relativity Space

"We're the very first venture-backed company that has won approval from the USAF for this site and only the fourth company to join the Cape," Ellis said. "This is the most elite launch facility in the world. This is where most of the history for launch has occurred."

SpaceX has the rights to Launch Complex 40, located just north of Relativity's new site, and Blue Origin is leasing Launch Complexes 11, 36A, and 36B to the south. United Launch Alliance — a daughter company of Boeing and Lockheed Martin — also leases launch complexes in Cape Canaveral.

If Relativity can successfully launch a Terran 1 rocket and send a payload to orbit within five years, it will get the chance to lease LC-16 for perhaps 20 years.

A giant leap for Relativity Space

The 3D-printed Aeon rocket engine fires from a testing stand at NASA's Stennis Space Center in Mississippi. Relativity Space

Depending on how each Terran 1 rocket is outfitted, Ellis says it could launch up to 2,750 pounds (1,250 kilograms) into low-Earth orbit for about $10 million per launch.

SpaceX's larger, more powerful, and partly reusable Falcon 9 rockets can launch about 10 times that much payload for roughly $62 million, or about one-third cheaper per pound.

But Ellis says Terran 1 is just a starting point.

"We can capture several billion dollars' worth of payloads in that class," Ellis said, adding that "exciting news" may be announced this year on that front.

Relativity has already gotten a lot done since its founding in 2015. The company built a 60,000-square-foot factory and headquarters in Los Angeles and also fleshed out its Stargate 3D-printing technology. It also secured a 20-year agreement to use rocket-engine test stands at NASA's Stennis Space Center in Mississippi.

Relativity is using the Mississippi site to test-fire its 3D-printed Aeon rocket engines. Ellis previously told Business Insider that so far, the engines have been tested successfully more than 100 times. Such tests are crucial, since nine of the engines will line the lower stage (or booster) of every Terran 1 rocket, and one engine will propel the upper stage (and its payload) into orbit.

Stargate by Relativity Space is arguably the largest metal 3D printer in the world. Relativity Space

Although one aerospace industry analyst has expressed uncertainty about the company's long-term value, Ellis offered a few ways to counter these doubts.

He said Relativity is poised to make good on its investments by reducing complexity, simplifying supply chains, and speeding up innovation. He added that the company has has hired about a dozen senior leaders from other private space companies.

Plus, Ellis noted that competition for the LC-16 site was "fierce," since many aerospace startups in the US are looking to secure a launchpad. That makes the Air Force's sign-off significant.

"I view it as a huge vote of confidence, not only that Relativity will launch rockets to orbit, but [the USAF] vetted our team and our technology approach as viable," he said. "We're inventing new ways to do this that no one has ever seen or done before."

To that end, Thomas Eye, a director within the USAF's 45th Space Wing, said in a press release: "We were impressed with Relativity's seasoned team and its innovative approach to space technology, and we look forward to working with them as they continue the process to launch the Terran 1 vehicle from Cape Canaveral Air Force Station."

A launch site for the ages — and the future

"ICBM Row" or "Missile Row" at Cape Canaveral Air Force Station, Florida, as seen in 1964. Launch Complex 16, which Relativity Space plans to develop, is highlighted. NASA; Business Insider

LC-16 has a "rich history of supporting national security and human exploration," as Ellis put it.

During the 1960s, it was used to test-fire hardware for NASA's Gemini and Apollo space programs. Prior to that, the US military used it to test some of America's first intercontinental ballistic missiles — rockets designed to fly nuclear warheads through space and strike an adversary — including the Titan I and Titan II.

Ellis said the company has a lot of work to do to retrofit the site for its use, since it needs to build an assembly building, mobile erector (to set up Terran 1 rockets for launch), propellant storage tanks, and lightning protection towers.

An illustration of a Terran-1 rocket by Relativity Space sitting on a launch pad at the US Air Force's Launch Complex 16 in Cape Canaveral, Florida. Relativity Space

One feature the company will keep, though may not necessarily use, is a historic underground roundhouse.

"They used to literally sit in that building and control launches from several hundred feet away, which sounds crazy in today's world," Ellis said. "They were basically standing under the rocket inside a bank vault." (Modern launches are controlled from thousands of feet if not miles away.)

The company hopes to launch its first Terran 1 rocket by the end of 2020, then start launching a growing manifest of commercial and government satellites thereafter.

When asked about SpaceX's recent 10% reduction in its workforce, Ellis hinted it may be helpful to Relativity Space.

"We're getting flooded with applications," he said.