Our Technology

Hylmpulse is developing cutting-edge launcher and spacecraft technology, including its disruptive and defining hybrid rocket technology, combining safety, efficiency, and performance for the next generation of space missions.

Why Hybrid Propulsion?

High Performance

High performance due to efficient combustion technology. Our in-house developed revolutionary hybrid rocket fuels unleash the same energy as liquid rocket fuels.

Affordable

Affordability achieved via our production know-how, technology and smart choice of materials.

Reliable

Lower system complexity, reliable and readily available.

Customizable

Flexibility and customization: tailored solutions for every size and clustering.

Safe & Easy to Handle

Safe to assemble and transport due to inert fuel grains. Paraffin / LOX are both the most affordable and safe, non-toxic propellants.

TNT equivalence of zero

Accident proof system due to spatial separation between the propellants (similar to liquid rockets, but unlike solid) and the propellants are in different states of matter (unlike both solid and liquid rockets).

OUR PROPULSION SYSTEMS

Our hybrid motor family powers suborbital and orbital vehicles with lightweight composite casings, thrust vector control, and modular interfaces, providing liquid-like performance with hybrid simplicity.
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- the 90 kN motor powers the SL1 orbital launcher and was successfully hot-fire tested in 2025.
- the 75 kN motor drives the SR75 sounding rocket and was validated in flight.
- the 10 kN motor, tested over 100 times, shares the same scalable architecture.

Our systems build on the flight-proven nitrous oxide hybrid technology used in the HEROS rockets, which flew above 100,000 ft in 2016.
In-house turbomachinery and powerpacks further ensure efficient, reliable performance across all missions.

Structure

Full composite casing

Throttling

Shutdown & restart possible

Customizable

Mission-ready & Scalable

ITAR Free

No Restrictions

Re-ignitable

Multiple burns possible

Feed System

Pressure or pump-fed

System Design

Analyzing subsystem and overall system performance in both nominal and off-nominal scenarios is essential for mission success. This process is strengthened through integrated, multidisciplinary testing. Strong coordination between system engineering, design, and mission analysis ensures that all elements work together seamlessly to fulfill your mission objectives.

Avionics & Flight Software

At the core of our launch vehicle, HyImpulse’s advanced avionics system ensures precise guidance, navigation, and control (GNC). Our flight software is tailored for each mission, optimizing performance while maintaining cost efficiency. By streamlining data continuity from design to launch, we enable seamless adaptation for diverse payloads, launch sites, and mission requirements.

Tanks & Structures

HyImpulse is using state of the art lightweight structures. Advanced linerless CFRP (Carbon Fiber Reinforced Plastic) LOX tanks and COPVs offer a lightweight and cost-effective solution that enhances the efficiency and performance of our spaceflight operations. Our hybrid rocket engines are leveraging the carbon composite wrapping technology.

Test Sites in Europe

Scotland

Operational test site for HyPLOX90 and HyPLOX75 ground testing

Germany

Full scale test benches at DLR Lampoldshausen

Germany

Research and subscale tests at DLR Lampoldshausen M11

DLR

HyImpulse Technologies GmbH is a spin-off of the DLR without DLR holding any equity shares or any other participation in HyImpulse Technologies GmbH´s company assets and develops innovative and safe hybrid propulsion technologies for low cost small satellite launcher.