HyPrSpace
HyPrSpace
Main page
2378379

HyPrSpace

logo
Community Hub0 subscribers
Read side by side
HyPrSpace
View on Wikipedia
from Wikipedia
Logo of HyPrSpace

HyPrSpace (Hybrid Propulsion for Space) is a rocket startup, founded in 2019, in Bordeaux, Nouvelle-Aquitaine, France. It develops orbital (Orbital Baguette-1/OB-1, pronounced Obi-wan) and suborbital (Baguette One) launch vehicles and hybrid propulsion systems.[1][2][3][4]

Funding

[edit]

In 2022, the company raised €1.1 million to develop its rocket.[4][5] In 2024 as part of a consortium (with the companies CT Ingénierie, SpaceDreamS and Telespazio France) it has raises €35 million to develop their launcher Orbital Baguette One (the Le Projet Agile de Développement d'Accès à l'espace 1—PADA1—project), 60 percent of the funding from the French government—as the winner of the France 2030 program supported by the State.[6][2][7][3][8][9][10][11][12]

Rockets

[edit]

Baguette One is a 7 metres tall, single-stage suborbital rocket, with a payload capacity of 300 kilograms.[2] The first suborbital mission is planned for 2026.[2] Baguette One will launch from DGA Essais de missiles, a missile testing site in mainland France.[13][14] Orbital Baguette-1 (OB-1) is a 16 metres tall micro-launcher with a payload of 250 kg to 400 km low Earth orbit (LEO).[1][15][8][9][16]

Engine

[edit]

The hybrid engine uses solid fuels (including HDPE) in combination with a liquid oxidizer and doesn't need a turbo pump.[6][17][16][9][4][12] On 11 July 2024, the first hot fire test of its Terminator hybrid rocket engine was completed with success.[18][19][20][15] In December 2024, HyPrSpace announced a successful hot test in the second Terminator testing campaign.[21]

References

[edit]

Further sources

[edit]
[edit]
Revisions and contributorsEdit on WikipediaRead on Wikipedia

HyPrSpace

View on Grokipedia
from Grokipedia
HyPrSpace (officially Hybrid Propulsion for Space) is a French aerospace startup founded in 2019 by Alexandre Mangeot, Sylvain Bataillard, Vincent Rocher, and Alexis Azoulai in Le Haillan, near Bordeaux, Nouvelle-Aquitaine, France. The company specializes in developing patented hybrid rocket propulsion systems that combine solid high-density polyethylene (HDPE) fuel with cryogenic liquid oxygen oxidizer in a pressure-fed, turbopump-free architecture to achieve simpler, safer, more robust, and cost-effective access to space.[1][2] HyPrSpace's hybrid engine technology features a thin annular combustion chamber for efficient performance across altitudes, uses helium-pressurized tanks to maintain flow, and eliminates the complexity and cost of turbopumps, reducing parts count significantly compared to traditional liquid engines. This design draws on recycled HDPE materials for sustainability and aims to overcome longstanding challenges in hybrid propulsion scalability. The company develops both suborbital and orbital launch vehicles to validate and apply this technology.[1] Its flagship projects include the Baguette One, a 10-meter-long single-stage suborbital demonstrator capable of carrying up to 300 kg payload, planned for its inaugural flight in the first half of 2026 from a French Ministry of Defence missile test site in mainland France, and the Orbital Baguette-1 (OB-1), a micro-launcher designed to deliver up to 235 kg to low Earth orbit, with an initial orbital test flight targeted for late 2027.[1][3][2] Backed by major public and private funding, HyPrSpace secured €21 million in an oversubscribed Series A round in late 2025 led by Red River West and DeepTech 2030 (managed by Bpifrance), alongside earlier investments, a €35 million contract from France 2030 for Baguette One development, and a €50 million CNES contract (R2D2) for OB-1 launches. The company has achieved key milestones including full-scale engine ignitions (such as the "Terminator" in 2024) and preliminary design reviews, while also exploring defense applications for its hybrid propulsion technology.[1][3][2]

History

Founding

HyPrSpace, officially known as Hybrid Propulsion for Space, was founded in 2019 in Le Haillan, near Bordeaux in the Nouvelle-Aquitaine region of France.[4] The company was officially registered on May 23, 2019.[4] It was established by aerospace engineers Alexandre Mangeot, Sylvain Bataillard, Vincent Rocher, and Alexis Azoulai, who created the startup specifically to file their first patent for a revolutionary hybrid engine architecture.[1] The founders aimed to develop hybrid rocket propulsion systems and launch vehicles that would provide simpler, safer, and more cost-effective access to space, addressing longstanding challenges in traditional rocket technologies through their patented innovations.[1]

Funding history

HyPrSpace has raised a combination of private investment and non-dilutive public funding to support the development of its hybrid propulsion technology and launch vehicles. The company's funding began with a €3.5 million seed round in November 2021.[1] In April 2022, HyPrSpace received €500,000 through the France 2030 program's call for micro-launcher projects, recognizing the maturity of its technology.[1] In March 2024, the company secured a €50 million commercial contract with the French space agency CNES under the R2D2 program to support the development and first launches of its orbital micro-launcher Orbital Baguette-1.[1] In October 2023, HyPrSpace obtained €35 million for the PADA1 project under the France 2030 initiative, leading a consortium with CT Engineering and Telespazio France to finalize the design of Orbital Baguette-1 and conduct the inaugural flight of the suborbital Baguette One demonstrator.[5] In June 2024, a €6 million pre-Series A round provided additional capital for ongoing development.[1] In November 2025, HyPrSpace closed an oversubscribed €21 million Series A round led by Red River West and DeepTech 2030, with participation from Bpifrance-managed funds and other investors. This round supports engine qualification, industrialization, and preparation for the Baguette One suborbital launch.[6][2][7]

Key milestones

The development of HyPrSpace has been marked by several significant milestones in its hybrid propulsion and launch vehicle programs. Prior to the company's official founding, the first test of the Lily hybrid engine occurred at the end of 2018, serving as the initial proof-of-concept that sparked the project's development.[1] In late 2021, HyPrSpace introduced the Joker demonstrator, a 1/20th-scale version of its hybrid engine designed to validate critical aspects of the technology through ground testing.[1] In December 2024, the company successfully completed the Preliminary Design Reviews (PDRs) for both the Baguette One suborbital demonstrator and the Orbital Baguette-1 (OB-1) micro-launcher, confirming the maturity of the designs.[8] In March 2025, HyPrSpace received the Grand Prix Arts et Métiers des Industries Responsables award, recognizing its contributions to sustainable and responsible industrial innovation in the space sector.[9] In June 2025, the company achieved a historic regulatory milestone with official authorization for the Baguette One launcher to conduct its inaugural flight from mainland France, marking the first private civil launch from metropolitan French territory.[7] HyPrSpace's roadmap targets the first suborbital flight of Baguette One in the first half of 2026 to validate the hybrid propulsion in flight, followed by the inaugural orbital mission of Orbital Baguette-1 by the end of 2027.[1]

Hybrid propulsion technology

Principles and advantages

Hybrid rocket propulsion systems use a solid fuel grain and a liquid or gaseous oxidizer stored separately until the moment of combustion. The oxidizer is injected into the central port of the fuel grain, vaporizing upon contact and forming a diffusion flame in the turbulent boundary layer along the fuel surface. This diffusion-limited combustion process results in a fuel regression rate that is proportional to the oxidizer mass flux, with limited dependence on chamber pressure.[10][11] Common solid fuels include polymers such as hydroxyl-terminated polybutadiene (HTPB) and paraffin-based formulations, while typical oxidizers include liquid oxygen (LOX), nitrous oxide (N₂O), and hydrogen peroxide (H₂O₂).[11] Hybrid rockets offer distinct advantages over both liquid and solid propulsion systems. Compared to liquid rockets, they provide mechanical simplicity by requiring only a single liquid propellant, reduced plumbing, fewer valves, and no turbopumps. The physical separation of fuel and oxidizer also enhances safety during handling and operation.[10][11] Relative to solid rockets, hybrids deliver higher specific impulse, enable throttling and restarting by modulating oxidizer flow, and support safer manufacturing, storage, transportation, and handling because the fuel grain remains inert and non-explosive without premixed oxidizer. Thrust termination and abort capability are also possible by stopping oxidizer flow.[11][10] Hybrid systems, however, face inherent challenges. Low fuel regression rates typically require multi-port grain designs to achieve sufficient thrust, which can increase complexity, lead to uneven burning, and leave residual propellant. Shifts in the oxidizer-to-fuel ratio during the burn and reduced combustion efficiency from diffusion-limited mixing are additional drawbacks.[10][11]

Patented architecture

HyPrSpace's patented hybrid propulsion architecture eliminates the need for turbopumps—one of the most complex and expensive components in traditional rocket engines—by employing a pressure-fed system that uses helium to deliver the liquid oxidizer.[1][12] This design significantly reduces complexity, resulting in approximately 30 times fewer parts compared to conventional rocket engines.[1] The system uses solid high-density polyethylene (HDPE) fuel—often recycled for sustainability and cost advantages—paired with cryogenic liquid oxygen (LOX) as the oxidizer.[1][3][12] A key innovation is the thin annular (toroidal) combustion chamber, which surrounds a cylindrical oxidizer tank and is lined with solid fuel blocks, creating an efficient combustion zone that maintains stable mixing and high performance across varying operating conditions.[1][12] This architecture enables thrust modulation through control of the oxidizer flow rate, allowing variable thrust profiles, engine shutdown, and restart capability.[12] The non-pyrotechnic nature of the propellants, which do not react without intentional ignition, enhances operational safety.[1] Overall, the patented design aims to provide simpler, safer, and more cost-effective access to space by leveraging these features to minimize production costs, shorten lead times, and improve reliability.[1]

Engine development and tests

HyPrSpace's engine development has centered on the Terminator hybrid rocket motor, a full-scale demonstrator for the propulsion stages of its suborbital and orbital launch vehicles. Testing has progressed through incremental hot fire campaigns conducted in partnership with the Direction Générale de l'Armement (DGA) at the missile testing site in Saint-Médard-en-Jalles, Gironde, France. These efforts have focused on verifying performance against theoretical predictions and accumulating operational experience with cryogenic propellants.[13] The first successful hot fire test of the Terminator stage demonstrator took place on July 11, 2024, lasting approximately 20 seconds. This test marked the start of an initial campaign that included four hot fire tests in July 2024, demonstrating basic engine functionality and initiating exploration of the propulsion system's operating range.[14][15] A second hot fire test campaign included a 40-second firing on December 13, 2024, achieving an average engine efficiency of 94%.[15] HyPrSpace completed two full-scale engine test campaigns with the DGA, announced on January 15, 2025. These campaigns comprised multiple firings with varying thrust levels and thrust modulation, using an incremental test-and-learn approach. The results experimentally confirmed that the Terminator engine's performance aligned with predictive theoretical models, provided proof of reliability, and validated the company's patented hybrid propulsion technology for both suborbital and orbital use. The tests also delivered critical hands-on expertise in cryogenic propellant operations.[13]

Launch vehicles

Baguette One suborbital demonstrator

Baguette One is a single-stage suborbital demonstrator rocket developed by HyPrSpace to validate its patented hybrid propulsion technology in actual flight conditions. The vehicle measures approximately 10 meters in length and is designed to carry payloads of up to 300 kg.[16][17] Powered by HyPrSpace's Terminator hybrid rocket engine, which uses solid high-density polyethylene fuel and liquid oxidizer in a pressure-fed configuration without turbopumps, Baguette One demonstrates the simplicity, reliability, and reduced complexity of this propulsion approach compared to traditional systems.[1][3] The inaugural flight is scheduled for the first half of 2026 from a site operated by the French Directorate General of Armaments (DGA) Essais de Missiles in southern France, marking the first private civil space launch from metropolitan French territory.[16][17][3] This mission serves as a key technology demonstrator, gathering in-flight data to support further refinement of the hybrid propulsion system and pave the way for subsequent orbital launch vehicle development.[17][3]

Orbital Baguette-1 micro-launcher

The Orbital Baguette-1 (OB-1) is an orbital micro-launcher under development by HyPrSpace, designed to provide dedicated access to low Earth orbit for small payloads using the company's patented hybrid propulsion technology.[1] The vehicle is intended to carry payloads of up to 235 kg to low Earth orbit, offering a cost-effective and reactive launch solution for small satellites and other payloads.[1] Development of OB-1 is supported by the R2D2 contract with the French space agency CNES, HyPrSpace's first commercial contract valued at approximately €50 million, which calls for five orbital launches and aims to ensure France's strategic autonomy in space access.[1] The launcher also benefits from the PADA1 project, a €35 million initiative under the France 2030 program and supported by Bpifrance, where HyPrSpace leads a consortium with CT Ingénierie and Telespazio France to finalize the vehicle's detailed design.[1][18] HyPrSpace has completed the preliminary design review for OB-1, with the first orbital flight targeted for the end of 2027 following validation through the suborbital Baguette One demonstrator.[1][19] The micro-launcher is positioned to address the growing demand for flexible, affordable smallsat deployment options through its simplified hybrid architecture.[3]
User Avatar
No comments yet.