Rockets of Today

ALPHA (α) — USA, 2022?

Firefly Space Systems had ambitious plans to build a small rocket called the Alpha with an aerospike engine, like NASA was trying in the VentureStar program that some say got killed by Dick Cheney. They went bust in 2016, thanks in part to a lawsuit by Virgin Orbit, claiming that Firefly’s original CEO Tom Markusic, who had worked at Virgin, took trade secrets with him. But then they got revived as Firely Aerospace by a new owner called Noosphere Ventures. The new company is ditching the aerospike idea for traditional kerosene turbopump propulsion, which ironically makes them more likely than before to be using the same technology as Virgin Orbit. They’re also making the rocket bigger than it was in the original plan... which I suspect might not be all that good an idea, as they’re trying to compete on cheapness. This means that many of their small-sat customers will still have to settle for sharing rides, which will be cheaper on a big rocket. Firefly hired many more employees than before, including a branch in Ukraine, the homeland of Noosphere boss Dr. Max Polyakov, who has sunk some $150 million of his own cash into the venture.

Polyakov’s Ukrainian parents were both aerospace engineers. His goal, beyond making a profit, was to revive Ukrainian high-tech industry, which was a shambles after the Crimean invasion made cooperation with Russia impossible. To this end, Polyakov founded a new engineering school there. But Polyakov doesn’t just do aerospace: his first successful venture was a company that ran disreputable dating websites (are there any other kind?) which got accused of fraud, leaving him with a lot of distrust from the western financial world, which adds to the distrust they already have of entrusting sensitive aerospace work to Ukraine.

This rocket is somewhat like the electron, but not nearly as small. It has two carbon fiber stages, both burning kerosene, with four “Reaver 1” engines (yeah, we know what their favorite TV show is) on the booster and a single little “Lightning 1” on the upper stage. Both engines employ a tap-off power cycle, which is rarely used — the pump turbine is powered from a hole in the side of the main combustion chamber. The four first-stage engines each gimbal on one axis only.

They plan to follow it up with a Beta (or β as they prefer to spell it), which they originally sai would be basically an Alpha Heavy, with three boosters side by side. But then they told people that the Beta would have a larger core and use the Aerojet-Rocketdyne AR1 engine — the staged-combusion kerosene burner which was originally intended to replace the Russian RD-180 in the Atlas and Vulcan. But Firefly’s website still shows the version with three Alpha boosters.  The AR1 has enough power that some said the Beta would have a capacity of eight tons, whereas the triple Alpha would do at most four. Then they ditched that and said it would use a new engine of their own called Miranda — seven of them. (They were previously going to just call it Reaver 2.) No details seem to be available yet about that engine... as far as I know, it does not exist yet even as a design on paper.

I wonder what kind of deal Firefly was given by Aerojet-Rocketdyne... who farted around for years, procrastinating on making the AR1 despite increasingly urgent Congressional mandates, only to find that by the time they finally started getting serious with it, Blue Origin had beaten them to the punch and stolen their main customer, ULA. (At one point, A-R had even offered to buy ULA entirely! Apparently $2 billion was too low an offer. A few years later the shoe was on the other foot, and Lockheed would have bought them out if regulators hadn’t blocked it. Then the Aerojet-Rocketdyne board split into two factions and created a bunch of drama trying to decide the future of the company. In the end, CEO Eileen Drake defeated board chair Warren Lichtenstein, who had tried to push her out... even though when the two went to court, the ruling was that Drake was the one who had acted illegally.)

In January of 2020, Firefly managed to get a completed booster onto a stand for a static fire test. Unfortunately it caused a fire which wasn’t quite static — flames in the engine compartment due to a fuel leak — which prompted a rapid evacuation of surrounding neighborhoods. The test immediately aborted itself and extinguishers automatically blew out the fire, with no real damage done.

(That’s a much better situation than rival company Rocket Crafters, or Vaya, suffered around the same time, in which an “overpressure event” during an engine test punched holes in their roof and started grass fires outside. They were trying to make a hybrid engine called STAR3D, in which the S was supposed to stand for “safe”. They eventually tried a suborbital flight, and the rocket immediately went sideways. They didn’t tell anyone until weeks after.)

Firefly hoped to get to orbit within six months after fixing whatever caused the leak. It took eight to get a successful run on the test stand, but that left them thinking they could go for orbit within weeks. It was not to be... even after the rocket arrived at Vandenberg, the expected launch window passed by with no word from the company for months after. It wasn’t until the following September (thanks in part to covid) that they finished the updates to the launch pad, completed a static fire on it, and launched. It looks like it lost an engine early, and managed to keep flying for about two more minutes before it went sideways and they had to blow it up. (In such cases you usually want to get it as far as you can from the launchpad, with as little remaining fuel as possible, before pushing the boom button.)

Firefly is also eyeing the lunar landing market, which NASA is trying to fund commercial development for. They’re working on a small lander which they call Genesis — no, now they’re calling it Blue Ghost — and a kick stage bus with an ion engine which they’re calling the Solar Utility Vehicle. That will use the same Aerojet-Rocketdyne hall-effect thruster that is used on the secret X-37B spaceplane, and the Blue Ghost will license some technology developed for Israel’s Beresheet lander, which crash-landed on the moon in its maiden flight. They are aiming for a capacity of 85 kilograms for a lunar surface instrument payload, and have apparently got several NASA missions lined up for it if they get it working.

Finally, they’re talking about their Gamma (γ) rocket being a spaceplane. That is of course many years away.

Meanwhile, they’re also willing to sell engines, it seems, or license them. They signed a deal with Astra to let them build Reaver engines for use in their own rockets. The purpose of this is not clear, as Astra’s own Delphin engines, though smaller, seem to be about as ready and reliable as the Reaver is. This deal was made just after both companies, at nearly the same time, had test launches fail because one engine gave out.

And while struggling to launch, US regulators forced Polyakov to give up the company, without any public statement as to why. Rumor has it that behind the scenes, they told Firefly that they would never allow it to use a launch pad until Polyakov was gone. In 2022 he sold his stake, with some bitter and angry remarks at being “betrayed”. This was just weeks before Putin invaded his homeland, so overall he’s not having a good year. He’s still in rocketry, though, as he’s bought into Skyrora.

This left CEO Markusic as the main man, but a few months later the buyers ousted him, making him Chief Technical Advisor to save face. He’s also on the board because he has some ownership stake. They took a while to name the new CEO. Meanwhile, the second Alpha was at Vandenberg preparing for its launch opportunity, but no date was announced.

Then came the announcement that Northrop Grumman would get a new booster from Firefly to lift their Antares replacement — in all but name, a Beta. And it appears that the newest redesign of the Beta is, in fact, designed specifically for use in the Antares — the tanks are made in the compatible size, and so on. They hope to get it flying in three years, which is going to leave Northrop with a bit of a gap even in the most optimistic circumstances... and I for one am not optimistic, given Firefly’s slow pace at getting the Alpha to work.

Some say that the end goal of the new owners is to get bought out by Northrop, which would relieve them from trying to figure out how the company should be run.

α: mass 54 t, diam 1.8 m, thrust 740 kN, imp 2.9 km/s, type Tk, payload 1.0 t (1.9%), cost hopefully $15M/t, record 0/1/0 through 2021.