Ursa Major Company Profile

Key Takeaways

• Hadley is Ursa Major’s most proven engine, with real hypersonic flight heritage.
• Draper has moved from concept to flight test and now anchors Ursa’s defense push.
• Ursa Major’s center of gravity in March 2026 is defense propulsion more than commercial launch.

Where Ursa Major Stands in March 2026

Ursa Major is no longer best understood as a startup trying to sell engines into a crowded launch market. That description fit the company a few years ago, when its public story leaned heavily on outsourced propulsion for small and medium launch vehicles. By March 2026, the evidence points somewhere else. Ursa has become a propulsion company with real flight heritage in hypersonics, a growing role in tactical and defense propulsion, a widening solid rocket motor business, and a smaller but still relevant launch-engine portfolio that now sits beside in-space mobility and space-based defense work.

That shift did not happen because the company abandoned launch. It happened because the market rewarded other things first. The United States needed reusable hypersonic test propulsion, tactically storable liquid propulsion, and new domestic missile-industrial capacity faster than it needed another standalone launch-engine success story. Ursa Major happened to have product lines that could move into those gaps. The result is a company whose most visible accomplishments now come from Stratolaunch flights, Air Force Research Laboratory programs, solid rocket motor expansion, and space-security contracts rather than from a single commercial rocket reaching routine orbital service.

There is a sharper way to put it. Ursa Major matters in March 2026 because it has become a real part of the American propulsion base. That is a stronger and more durable position than the old startup ambition of attaching one engine family to one breakout launch vehicle.

The Company and Its Current Leadership

Ursa Major was founded in 2015 in Colorado around the idea that propulsion could be sold as a product rather than treated as an internal capability of vertically integrated launch firms. Early company messaging framed that as a “pure-play” rocket propulsion business. The original target market was broad: commercial launch providers, hypersonic platforms, and later in-space systems.

The company’s leadership story changed twice in ways that matter for how its engine business should be read. On August 2, 2024, Ursa Major announced that Dan Jablonsky would become chief executive officer effective August 5, 2024, taking over from founder Joe Laurienti . Then on February 19, 2026, Ursa Major announced that Chris Spagnoletti had been appointed CEO. As of March 2026, Spagnoletti is the company’s current chief executive, and any article that still identifies Jablonsky as the present CEO is out of date.

That leadership progression aligns with the company’s strategic evolution. Under Laurienti, Ursa Major built its early identity around independent propulsion and additive manufacturing. Under Jablonsky, it pushed more visibly into defense, solid rocket motors, and operational contract wins. Under Spagnoletti, the public posture as of early 2026 is even more direct: scalable hypersonic systems, missile-related propulsion, tactical space mobility, and production ramp. That is not just corporate language. It reflects the actual projects that now dominate the public record.

How Ursa Builds Engines

Ursa Major’s technical identity is tied to additive manufacturing far more deeply than most aerospace firms that use the term in passing. The company has repeatedly stated that its engines are more than 80 percent 3D printed by mass. In July 2022, Ursa said its Youngstown operation had compressed copper combustion-chamber production cycles to one month, down from roughly six months through traditional methods. In July 2024, it announced a new Youngstown-area research and development center with a capital investment of $14.5 million, including $4 million in JobsOhio grant support.

That matters because propulsion is a manufacturing business as much as a design business. Engine companies rarely fail because they cannot draw a promising schematic. They fail because materials, cycles, tolerances, test tempo, inspection, and repeatability become painful when real hardware starts to scale. Ursa’s message has gradually matured on this point. It now talks less about additive manufacturing as a novelty and more about what additive manufacturing enables: faster iteration, reduced part count, production-rate improvement, vertical integration of key components, and shorter lead times across different product lines.

That does not mean additive manufacturing removes aerospace difficulty. It does not. Printed chambers still have to survive combustion, thermal gradients, and manufacturing variation. Rotating machinery still has to work. Qualification still takes time. Yet Ursa has shown enough hardware movement and test activity that its manufacturing claims cannot be dismissed as startup decoration. The company has actual flight articles, repeat customer contracts, and multiple propulsion categories now rooted in that production philosophy.

The Engine Lineup in March 2026

Ursa Major’s current launch and hypersonics pages show four major liquid-engine names that frame the company’s story: Hadley , Ripley , Arroway , and Draper . Hadley is listed at 5,000 pounds-force at sea level and up to 6,500 pounds-force in a vacuum variant, running on liquid oxygen and kerosene in an oxygen-rich staged-combustion cycle. Ripley is listed at 50,000 pounds-force, also using liquid oxygen and kerosene in an oxygen-rich staged-combustion cycle. Arroway is now presented more broadly as a full-flow staged-combustion methane and oxygen engine spanning roughly 65,000 to more than 300,000 pounds-force, suitable for heavy and national security launch. Draper is a tactical, storable engine using hydrogen peroxide and kerosene in a closed catalyst cycle and is publicly framed for hypersonics, missile defense, in-space propulsion, and space-based interception.

That is a broader portfolio than many outside observers still realize. The company is no longer just a launch-engine developer with one interesting hypersonic application. It now has a liquid engine that has flown on reusable hypersonic testbeds, a storable tactical liquid engine that has completed flight demonstration, a medium-class kerosene engine with public launch heritage claims and less visible recent momentum, a large methane engine still on the books, and a hydrazine -based in-space propulsion system for tactical satellite buses.

The harder judgment lies in separating what is flight-proven from what is still programmatic or strategic. Hadley and Draper have crossed that line in meaningful ways. Ripley remains a real product with historical redesign and hot-fire progress. Arroway remains more aspirational in the public record than the company’s top two defense-oriented engine lines. That is not a slight. It is simply where the evidence is strongest.

Hadley

Hadley is the engine that most clearly validates Ursa Major’s technology claims. The company lists it as a 5,000-pound-force sea-level engine with a 6,500-pound-force vacuum variant, using liquid oxygen and kerosene in an oxygen-rich staged-combustion cycle . Ursa has long emphasized that Hadley was the first American-made oxygen-rich staged-combustion engine to be hot-fired. That is notable, but it is no longer the most meaningful thing about the engine. Flight history matters more now.

The first flight milestone came on March 9, 2024, when Ursa Major stated that Hadley powered Stratolaunch’s Talon-A1vehicle over the Pacific. That mission reached high supersonic speeds approaching Mach 5 . It was an important propulsion milestone, but it was not the same thing as sustained hypersonic flight. That distinction matters because the later Talon-A2 campaign is what elevated Hadley from an interesting small engine to one of the few privately built American engines with strong operational hypersonic heritage.

On May 5, 2025, Stratolaunch announced that Talon-A2 had completed its second hypersonic flight and recovery in March 2025, following its first hypersonic flight in December 2024. On May 6, 2025, Ursa Major stated that Hadley had achieved sustained hypersonic speeds during two separate tests since late 2024, with both flights featuring successful post-landing recovery of the Talon-A2 vehicle for reuse. That is the key point. By spring 2025, Hadley was no longer just flight-tested. It was tied to repeated Mach 5-plus reusable missions.

This engine’s 2025 and 2026 story did not stop there. On July 17, 2025, Ursa Major published a release stating that on June 16, 2025 it had been awarded a $32.9 million contract to develop and deliver 16 upgraded Hadley H13 engines for Stratolaunch’s hypersonic test program. Then on March 4, 2026, Ursa Major announced that Hadley H13 had completed its first hot fires. The company described H13 as a mission-upgraded, off-the-shelf variant designed to improve reusability, increase engine life, and support both hypersonics and light launch. It also stated that H13 can be reused more than twice as many times as previous variants.

That makes Hadley the company’s most mature liquid engine in the public record. It has flown, supported sustained hypersonic missions, been tied to a repeat customer with a multi-engine production award, and entered a new H13 phase with additional hot-fire validation. Hadley is not simply Ursa’s flagship engine. It is the proof that the company can move an additively manufactured, staged-combustion engine from development into repeat operational use cases. In March 2026, that is the strongest fact in the Ursa engine story.

What Hadley Has and Has Not Proven

Hadley has proven more than many engines ever do. It has shown that Ursa Major can work with a demanding aerospace customer, survive real flight environments, and generate follow-on business based on performance rather than promise. The engine has also shown that Ursa’s manufacturing approach can support hardware that flies repeatedly in one of the most punishing test regimes in aerospace. Reusable hypersonic flight is not forgiving. It exposes engines to operational conditions that ground tests cannot fully mimic.

At the same time, Hadley has not yet proven that Ursa can dominate the orbital-launch market. That is a different standard. There is no public record of Hadley serving as the engine base for a high-cadence orbital launcher carrying routine customer payloads through 2026. There are announced launch relationships, including Astra ’s Rocket 4 upper-stage plan in April 2023 and earlier Phantom Space work, but those do not add up to the same thing as a thriving operational launch service. The strongest evidence still points toward hypersonics and defense uses.

That should not be read as a weakness. It should be read as the market choosing the most valuable near-term use for the engine. The United States needed a reusable hypersonic test propulsion solution more urgently than it needed another small-launch workhorse. Hadley met that need first.

Draper

Draper is the engine that best explains Ursa Major’s strategic direction in 2026. The company introduced it on May 24, 2023 as a 4,000-pound-thrust hydrogen peroxide and kerosene engine using a closed catalyst cycle. The design was pitched for hypersonic defense, in-space propulsion, and rapid launch applications. That may have sounded expansive at the time, but the subsequent milestones have given it weight.

The first major development step came on May 31, 2024, when Ursa announced that Draper had been successfully hot-fired in March 2024, within roughly a year of its public introduction. Ursa described the engine as drawing on the architecture and manufacturing legacy of Hadley while replacing cryogenic handling requirements with storable propellants better suited for tactical missions and in-space applications. That was not yet field proof, but it showed that the company had moved beyond concept slides quickly.

The next step came on May 2, 2025, when Ursa announced that AFRL had awarded it a firm-fixed-price contract worth $28,565,857 for responsive space, hypersonic, and on-orbit propulsion. Ursa said this work would culminate in a flight demonstration and stated that Draper had already accumulated more than 200 hot fires. This is the kind of detail that matters in propulsion. Contract size says something about government confidence, but accumulated hot-fire count says more about program seriousness.

By December 1, 2025, Ursa reported a full-duration static fire of the Affordable Rapid Missile Demonstrator , or ARMD, powered by Draper. Then on March 12, 2026, AFRL announced that AFRL and Ursa Major had executed a flight of ARMD, powered by Draper, achieving supersonic speeds and demonstrating concepts of operations. AFRL’s imagery and release tied the flight to January 27, 2026. This sequence leaves little ambiguity. Draper has now progressed from program announcement to hot fire, to full-duration demonstrator static fire, to actual flight.

The engine also expanded into another mission set in September 2025, when Ursa announced a $34.9 million contract to advance Draper for space-based defense. The company’s current hypersonics and space pages now present Draper not only as a hypersonic-defense engine but as a tactical, storable liquid engine relevant to on-orbit maneuver, interception, and space-based defense architectures.

This is why Draper should not be treated as a niche side effort. In March 2026, Draper is one of the clearest indicators that Ursa Major has found a product category where its propulsion philosophy aligns with customer demand. A storable, throttleable, manufacturable liquid engine solves a real problem for hypersonic targets, missile defense concepts, and maneuverable space systems. Draper is the company’s most strategically revealing engine, even if Hadley remains the best-proven one.

Why Draper Fits the U.S. Defense Market

Draper addresses a gap that has frustrated American defense planners for years. Solid rocket motors offer storability, compactness, and readiness, but once ignited they are far less flexible. Cryogenic liquid systems offer control and restart, but they are poor fits for many tactical settings. Draper tries to combine the better parts of each approach. Its storable propellants reduce handling complexity and improve readiness, while its liquid architecture preserves throttle control, restart capability, and maneuver flexibility.

That is not a theoretical value proposition. It fits the Pentagon’s evident appetite for affordable target systems, responsive propulsion, and adaptable maneuvering in both atmospheric and orbital contexts. Ursa now goes a step farther and packages the engine into a system-level offering. On February 24, 2026, it unveiled the HAVOC missile system, describing it as a complete hypersonic capability powered by Draper and boosted by Ursa’s in-house solid rocket motors. Whatever one thinks of the branding, the move says something substantial. Ursa no longer wants only to be a component supplier. It wants to be a provider of integrated propulsion-centered systems.

That is a meaningful strategic turn. Suppliers of individual engines can be swapped more easily than suppliers embedded in flight demonstrators, missile architectures, and production plans. If HAVOC remains a public concept and ARMD remains the nearer-term validated path, the direction is still clear. Ursa is trying to move up the value chain from “engine vendor” to “system enabler.”

Ripley

Ripley occupies a more ambiguous place in the Ursa lineup. The engine is currently listed as a 50,000-pound-thrust liquid oxygen and kerosene engine using an oxygen-rich staged-combustion cycle, aimed at small to medium commercial launch. Historically, this product represented a bridge between Hadley’s smaller thrust class and Arroway’s large methane category. It also showed Ursa stretching its oxygen-rich staged-combustion experience into a more substantial launch role.

The public development trail around Ripley is real, though quieter than the stories around Hadley and Draper. In July 2022, Ursa said the engine had been redesigned from 35,000 to 50,000 pounds of thrust, with Youngstown additive work helping support that change. In December 2023, during the company’s $138 million Series D and D-1 funding announcement, Ursa said it had redesigned and hot-fired the 50,000-pound-thrust Ripley engine. Those are solid milestones, and they confirm that Ripley is not a notional product.

What is missing in March 2026 is the same kind of visible operational record seen with Hadley or Draper. Ripley appears on the current space page. It remains part of Ursa’s product lineup. It was included in the 2022 Phantom Space order for more than 200 Ursa engines, which covered both Hadley and Ripley and was framed around launches planned from 2023 through 2026. Yet the public record does not show a comparably prominent recent flight program, repeat contract announcement, or public-use milestone that would make Ripley the centerpiece of Ursa’s current story.

That does not make Ripley unimportant. It makes it underexposed. The engine may still have a role in responsive launch, medium-class vehicles, or defense-oriented launch systems. But the evidence available by March 2026 does not support placing it on the same maturity tier as Hadley’s hypersonic work or Draper’s flight-demonstrated tactical path.

Arroway

Arroway is the most ambitious engine in the family and the one that requires the most caution. Ursa introduced Arroway on June 2, 2022 as a 200,000-pound-thrust methane and oxygen staged-combustion engine for medium and heavy launch. At that time the company said Arroway was slated for initial hot-fire testing in 2023 and delivery in 2025. It presented the engine as a domestic answer to the loss of Russian propulsion options and as a commercially available engine that could support heavy launch when clustered.

A year later, in May 2023, Ursa said an AFRL contract would further develop Arroway alongside Draper, and the company then described Arroway as expected to hot-fire in 2025. The present-day space page shows a broader Arroway family with full-flow staged combustion, methane and oxygen propellants, and a sea-level thrust span of 65,000 to more than 300,000 pounds-force. That suggests the company has widened or recharacterized the Arroway concept over time.

What the public record does not clearly show is a confirmed March 2026 milestone trail matching those early expectations. There is no visible primary-source announcement in the current open record establishing that the initial hot-fire and delivery targets were achieved on the schedule first advertised. Arroway remains part of Ursa’s portfolio, and it still matters strategically, but a careful article should stop there.

This is where some uncertainty remains. Arroway may be farther along than the public record suggests, especially if customer work is shielded by nonpublic arrangements. Still, an article claiming more than that would be leaning beyond the visible evidence. The safest conclusion is that Arroway remains an active strategic program with a meaningful place in Ursa’s launch ambitions, but its present maturity is less publicly documented than Hadley’s or Draper’s.

Launch Customers and Partnerships

Ursa Major’s launch-customer history is real, though mixed. One major early agreement came on May 4, 2022, when Phantom Space announced an order for more than 200 Ursa engines, including Hadley and Ripley. The order was framed around Phantom’s Daytona rocket and later upgrades, with planned launches across 2023 through 2026. That deal showed the appeal of outsourced propulsion during the period when many launch startups were still trying to buy rather than build.

A second notable launch-related agreement came on April 25, 2023, when Ursa announced that it would provide vacuum-variant Hadley engines for the upper stage of Astra’s Rocket 4 as part of Launch System 2. The stated case for Hadley in that role was clear: an oxygen-rich staged-combustion upper-stage engine with restart capability that could support longer missions and direct orbital insertion.

These deals matter historically neither agreement by itself proves that Ursa has already become the propulsion backbone of a thriving orbital-launch ecosystem. The launch market has been harder than many startups expected. Rideshare economics, capital constraints, slips, and vertical integration have all reshaped demand. What the agreements do show is that the outsourced-propulsion thesis had real traction with launch firms. What they do not show is that launch became Ursa’s primary growth engine. The defense record is stronger.

Hypersonics and the Stratolaunch Relationship

The Stratolaunch relationship deserves special treatment because it turned Hadley into a mission-proven product. Talon-A1’s March 2024 powered flight mattered, but Talon-A2 is where the relationship became a durable part of Ursa’s identity. Stratolaunch’s May 2025 release confirmed two reusable hypersonic flights and recoveries of Talon-A2, in December 2024 and March 2025, both at speeds beyond Mach 5. Ursa then tied that record directly to Hadley.

The July 2025 contract for 16 upgraded Hadley H13 engines is the strongest sign that this was not a one-off demonstration relationship. It supports a growing test cadence and extends a series of successful collaborations. In other words, Stratolaunch did not just validate Hadley. It kept buying into the engine’s future. That is a much better signal than praise alone.

This relationship also gives Ursa something rare in propulsion marketing: operational context that outsiders can understand without technical hand-waving. Reusable vehicle, Mach 5-plus performance, recovery, repeat flight, and follow-on engine procurement all point in the same direction. Few engine companies can tell a cleaner story than that.

AFRL, ARMD, and the Defense Pivot

The AFRL relationship is just as important as Stratolaunch, though for a different reason. Stratolaunch validates reusable flight performance. AFRL validates relevance to U.S. defense needs and future system integration. The May 2023 AFRL contract supported development of Draper for hypersonic defense and further work on Arroway for launch. The May 2025 AFRL award expanded that into a broader responsive-space, hypersonic, and on-orbit propulsion effort ending in flight demonstration. The March 2026 AFRL release then confirmed that the flight demonstration had occurred.

ARMD is especially revealing because it puts Ursa in the role of lead vehicle integrator, not just component supplier. The company’s current hypersonics page says Draper-powered ARMD validates the engine as a storable, throttleable, flight-ready solution for responsive space, on-orbit maneuver, and hypersonic strike. The tone is forward-looking, but the underlying fact remains: Ursa is being tested not only on whether it can make an engine, but on whether it can deliver a functioning demonstrator around that engine.

That is a deeper kind of customer trust. It also supports the broader reading that defense propulsion is now Ursa Major’s center of gravity.

Solid Rocket Motors and Why They Matter to the Liquid-Engine Story

An article on Ursa rocket engines cannot ignore the solid rocket motor expansion, because it changes what the liquid-engine business means. In September 2024, Ursa Major announced a $25 million joint investment with the U.S. Navy , built around a $12.5 million DoD investment matched by the company, to mature its Lynx solid rocket motor manufacturing process. The release tied the effort to a Navy prototype program and to a separate award for a second-source Mk104 dual-thrust rocket motor.

In December 2024, Ursa and Raytheon announced a successful U.S. Army missile flight test using an advanced long-range solid rocket motor. The companies stated that qualification work was expected in 2026. By early 2026, Ursa was also talking about production ramp, common modular motors, and a 200-SRM-per-year rate.

This matters to the engine discussion because it shows Ursa is not a single-lane propulsion company anymore. It is building a broader propulsion house that can pair liquid engines like Draper with in-house boosters and feed those into larger system offerings such as HAVOC. That integrated approach changes the commercial logic around the liquid engines. They are now part of a family of propulsion products and mission packages, not isolated catalog items.

In-Space Mobility and Space-Based Defense

Ursa’s current space business is broader than launch engines. On March 14, 2025, the company announced a contract worth $10 million to $15 million to deliver fully integrated GEO propulsion systems for a customer focused on space missions, with six-degree-of-freedom maneuverability and in-house integration of tanks, thrusters, and avionics. The current space page presents this as a hydrazine-based, tactically responsive satellite propulsion system designed for operations from LEO to GEO and beyond.

That in-space propulsion line is not a footnote. It reveals another reason Draper matters. The same company logic that produced a storable tactical liquid engine for hypersonics can also support maneuverable orbital systems. Ursa has publicly connected Draper to responsive space, on-orbit maneuver, and space-based defense. In September 2025, the company announced a $34.9 million contract to advance Draper for space-based defense. The term “space-based defense” carries political and doctrinal baggage, but the contract itself signals a real customer interest in propulsion that is storable, maneuverable, and manufacturable.

The result is that Ursa’s propulsion roadmap now stretches from launch ascent to hypersonic testbeds to tactical missile concepts to satellite maneuver systems. That breadth brings risk, because focus can erode when portfolios spread too far. Yet it also creates resilience. If launch demand is inconsistent, defense demand can carry the company. If one program slips, another may still mature.

Financing, Bookings, and Scale

Ursa Major’s financing history helps explain why it has been able to widen its propulsion lineup. The company announced an $85 million Series C round in December 2021. It then announced a $138 million Series D and D-1 raise in December 2023, tied to scaling propulsion and introducing Lynx solid rocket motors. In November 2025, Ursa announced a $100 million Series E round, plus an additional $50 million in debt funding commitments. In the same release, it stated that it had booked more than $115 million in contracts through the first three quarters of 2025, including work with the U.S. Department of Defense , AFRL, Stratolaunch, and BAE Systems .

Those figures do not make Ursa a giant. They do show that the company has moved beyond seed-stage storytelling. It is now operating at a level where financing rounds, bookings, and government-linked contracts have enough size to support real manufacturing expansion, leadership hiring, and diversification into adjacent propulsion markets. That does not guarantee long-term success. Aerospace companies can burn through large raises without building durable businesses. Still, by March 2026 Ursa has more than rhetoric behind it.

The Customer Base

Ursa’s public customer and partner list is broader than one might expect from a company still often described in shorthand as a launch startup. Publicly announced relationships include Stratolaunch for hypersonic test vehicles, AFRL for Draper and ARMD-related work, Phantom Space for Hadley and Ripley orders, Astra for upper-stage Hadley work, an unnamed customer for GEO satellite propulsion, Raytheon for advanced long-range solid rocket motors, the U.S. Navy and DoD Office of Strategic Capital for Lynx-related investment, Teledyne Brown Engineering under the U.S. Army SMDC D3I Domain 1 IDIQ structure, and BAE Systems within the company’s 2025 bookings disclosure.

That list supports the view that Ursa’s addressable market is no longer just “engines for rockets.” It is propulsion for missiles, targets, launchers, and satellites. It also explains why the company now presents itself as an aerospace and defense company rather than purely a space company.

The Competitive Picture

Ursa operates in one of the hardest manufacturing categories in aerospace, and its competition is serious. In large methane engines, SpaceX and Blue Origin define the most visible benchmark class. In solids, incumbent suppliers remain powerful. In tactical and missile-related propulsion, large defense primes and long-established specialists already occupy much of the market. Ursa does not dominate any of those domains outright.

Its edge lies in a different combination: independence, additive-heavy production, productized propulsion, and demonstrated movement across liquid engines, solid rocket motors, and integrated systems. The company is not trying to win by matching the largest incumbents line for line. It is trying to win where speed, flexibility, and manufacturability matter enough that customers are willing to adopt a newer supplier. That is a rational strategy, and the existing contracts suggest it is working.

The Best Way to Judge Ursa Major in March 2026

The easiest mistake is to judge Ursa only through the lens of launch. That lens misses the company’s strongest proof points. The best-validated engine is Hadley, not because it is attached to a thriving orbital-launch fleet, but because it has flown repeatedly in real hypersonic missions and produced follow-on procurement. The most strategically revealing engine is Draper, not because it is already fielded everywhere, but because it aligns so well with defense demand for storable, throttleable, maneuverable propulsion. Ripley remains relevant but quieter. Arroway remains meaningful but not yet publicly mature enough to carry the whole launch story.

The company’s trajectory is easier to understand when framed as an industrial-base story. The United States has wanted more propulsion depth, more domestic options, faster manufacturing, and more supplier diversity. Ursa Major has not solved all of those issues, but by March 2026 it has become one of the few younger firms that can credibly claim to be moving the needle in more than one propulsion segment at once. That is its real significance.

Summary

Ursa rocket engines are no longer just a catalog of promising products. As of March 2026, they represent a propulsion family with uneven but meaningful maturity. Hadley is the company’s most validated engine, with flight history beginning on Talon-A1 in March 2024, sustained Mach 5-plus reusable missions on Talon-A2 in December 2024 and March 2025, a $32.9 million follow-on contract from Stratolaunch, and a new H13 variant that completed first hot fires in March 2026. Draper has advanced from its 2023 unveiling to 2024 hot fire, 2025 AFRL contract expansion, 2025 full-duration ARMD static fire, and a January 27, 2026 flight demonstration publicly disclosed by AFRL in March 2026. Ripley remains a real 50,000-pound-thrust engine with redesign and hot-fire history, but less visible current momentum. Arroway remains part of the portfolio, though the public record does not yet support treating its early schedule targets as achieved.

The new point that deserves the most weight is this: Ursa Major’s future does not depend on becoming the loudest launch-engine company in the market. Its stronger path is becoming hard to replace inside the U.S. propulsion base, across hypersonics, tactical liquid systems, solid rocket motors, and maneuverable space propulsion. That is the role the evidence supports in March 2026, and it is a larger role than many people still assign to the company.

Appendix: Top 10 Questions Answered in This Article

What is Ursa Major’s most proven rocket engine as of March 2026?

Hadley is Ursa Major’s most proven rocket engine in the public record. It has flown on Stratolaunch’s Talon-A vehicles, supported sustained Mach 5-plus missions, and led to a follow-on contract for 16 upgraded H13 engines.

What does the Hadley engine use for propellants and cycle?

Hadley uses liquid oxygen and kerosene. It operates on an oxygen-rich staged-combustion cycle and is listed at 5,000 pounds-force at sea level with a 6,500-pound-force vacuum variant.

Did Hadley reach hypersonic speed on its first flight?

No sustained hypersonic claim was made for the first March 2024 Talon-A1 flight. That mission reached high supersonic speed approaching Mach 5, while the later Talon-A2 flights in December 2024 and March 2025 were the sustained hypersonic flights.

What is Draper and why does it matter?

Draper is Ursa Major’s storable liquid engine for hypersonics, missile defense, and in-space propulsion. It matters because it combines tactical storability with liquid-engine throttle control and has now completed a real flight demonstration.

Has Draper actually flown?

Yes. AFRL announced in March 2026 that the Affordable Rapid Missile Demonstrator powered by Draper had flown and achieved supersonic speed, with the flight tied to January 27, 2026.

What is Ripley’s role in the product lineup?

Ripley is a 50,000-pound-thrust liquid oxygen and kerosene engine for small to medium launch. It remains part of Ursa Major’s lineup, but its recent public milestones are less visible than Hadley’s or Draper’s.

What is the current status of Arroway?

Arroway remains an announced methane-and-oxygen heavy-launch engine in Ursa Major’s public portfolio. The open record does not yet clearly confirm that its early hot-fire and delivery targets were achieved on the original schedule.

Who is Ursa Major’s CEO in March 2026?

Chris Spagnoletti is Ursa Major’s CEO as of March 2026. He was appointed on February 19, 2026 after Dan Jablonsky’s earlier tenure as chief executive.

Is Ursa Major still mainly a launch company?

No. It still offers launch engines, but its strongest public traction now lies in hypersonics, tactical propulsion, solid rocket motors, and space-defense mobility systems.

What is the clearest conclusion about Ursa rocket engines in March 2026?

Ursa Major has moved beyond startup-stage engine development into a broader propulsion role. Its best evidence of success now comes from defense and hypersonic programs rather than from a dominant commercial launch position.