ENGINEERING
PROPULSION SYSTEMS

For the next generation
of European spaceflight

LIQUID PROPELLANTS
PARSEC ENGINEERING
Reusable spaceplane
with combined propulsion
3D MODEL / RENDER — SPACEPLANE
Main hero visual, large
Three.js interactive or high-res render
Spaceplane in flight or orbital view
Hot-fire test campaign
ENGINE TEST VIDEO LOOP
Muted autoplay, looped
Real test footage
Our technology Get in touch
[X]+ Full duration
hotfire tests
[X] kN Peak
thrust
[X] Seconds of
specific impulse
LIQUID PROPELLANTS PARSEC ENGINEERING
Hardware
Hot-fire tested

Liquid rocket engine with regenerative cooling, successfully fired at 6 kN steady thrust, exceeding the 5 kN design target

Architecture
Jet + Rocket

Combined propulsion for runway takeoff. Jet engine for atmosphere, rocket ignition at altitude. No launch pad

Approach
Reusable by design

Takeoff from a runway, reach the edge of space, return and land. Fly again within hours, not months

HOT-FIRE TEST VIDEO
Autoplay / muted / looped
Real test footage
Propulsion
Tested under fire

Real hardware, real data. Our engine completed its first hot-fire campaign with regenerative cooling holding at design parameters across every burn

~6 kN steady thrust
50+ bar feed system
TRL 4-5 readiness
Technology →
Regen cooling

Fuel channels in nozzle walls absorb heat. Thermal loads within design limits through every burn

Throttleable

Pintle injector: 30-100% thrust range. Trajectory control, fuel optimization, soft landing

Metal 3D printing

Complex geometries, part consolidation. Design-print-test in days, not weeks

ML-driven dev

CFD surrogates for rapid iteration. ML test data analysis. AI structural optimization

Combined propulsion
Two engines, one vehicle, no launch pad

Jet engine for runway takeoff and atmospheric cruise. Rocket engine activates at altitude for high-speed and suborbital missions. Returns and lands like an aircraft

FLIGHT PROFILE ANIMATION
Runway → jet climb → rocket ignition at altitude → coast → reentry → jet landing
Scroll-animated
Vision
Beyond atmosphere

Defense, science, commercial. A reusable vehicle that operates from any runway, reaches suborbital altitudes, and lands back for the next mission

Explore use cases →
3D SPACEPLANE — ORBITAL VIEW
Vehicle above Earth's curvature
PARSEC in numbers
[X]

Hot-fire tests
completed

[X] s

Total burn
time

[X]

Flight demonstrators
in development

€[X]

Raised
to date

Placeholder values — update with real numbers

Defense & ISR
Above the threat

Responsive launch from military runways. High-altitude reconnaissance beyond air defense reach

Learn more →
Hypersonic testing
The missing test range

Reusable platform for payloads at Mach 3 to 5 with post-flight hardware recovery

Learn more →
Science
Ignorosphere, explored

Repeated flights through 50-100 km with in-situ measurement and full payload recovery

Learn more →
Latest
2026Hot-fire test campaign completed
2026PARSEC at Future Forces Forum 2026
2026Company founded
All news →
Let's talk

Investors, defense partners, researchers, talent

Contact →
HOT-FIRE TEST — FULL VIEWPORT VIDEO
Autoplay / muted / looped
Full-screen engine firing footage
Propulsion system

Liquid rocket engine

Regenerative cooling, high-pressure feed, pintle injector for throttle control. Designed for reusable flight integration

Regeneratively cooled
rocket engine V1
ETHANOL / N₂O BIPROPELLANT
PRESSURE-FED / PINTLE INJECTOR
3D MODEL — ENGINE CROSS-SECTION
HUD labels on scroll:
"Regen nozzle" / "Pintle" / "Feed system"
Suborbital tech demonstrator V1
SPACEPLANE RENDER
Concept render
~6 kNSteady-state
thrust
50+ barFeed system
pressure
TRL 4-5Technology
readiness
LIQUID PROPELLANTS PARSEC ENGINEERING
Hot-fire results
~6 kN

Steady-state thrust Design: 5 kN

50+ bar

Feed system pressure

TRL 4-5

Readiness level Most EU peers: TRL 3-4

HOT-FIRE HIGHLIGHT REEL
Ignition, flame, nozzle, sensors
Measured data
PropellantEthanol / N₂ONon-toxic bipropellant
Feed pressure50+ barPressure-fed
Steady thrust~6 kN5 kN design
Burn duration2 s / 4 sTests 1 & 2
Regen coolingNominalWithin design limits
Regenerative cooling

Fuel channels in nozzle walls absorb heat before combustion. Thermal loads within limits through entire burn

Throttleable

Pintle injector: 30-100% thrust range. Soft-start, trajectory control, fuel optimization

Metal 3D printing

Complex internal geometries, part consolidation. Design-print-test in days

ML-driven dev

CFD surrogates, test data analysis, structural optimization for AM

Combined propulsion
Two engines, one vehicle, no launch pad

Jet engine for runway takeoff and cruise. Rocket engine at altitude for high-speed and suborbital flight. Returns and lands like an aircraft

FLIGHT PROFILE ANIMATION
Runway → jet climb → rocket ignition → coast → reentry → jet landing
SPACEPLANE CONCEPT RENDER
Side view / translucent panels / engine visible

Conceptual design. Configuration subject to development and funding.

Path to flight
Progressive demonstrators

Each step validates the next. Timeline depends on propulsion results and funding

01
Propulsion
qualification
02
Demonstrator
design & build
03
Ground
integration
04
Atmospheric
jet flights
05
Rocket-powered
flights

Europe needs sovereign
access to space

No European country operates a reusable launch vehicle. Defense budgets are at historic highs. The infrastructure for responsive space access does not exist on this continent

Defense & ISR
Above the threat

Responsive launch from any military runway. Reconnaissance beyond air defense reach. Reusable, affordable, sovereign

Defense capabilities →
ISR MISSION VISUAL
HYPERSONIC TEST VISUAL
Hypersonic testing
The missing test range

NATO identified the capability gap. A reusable vehicle carrying test payloads at Mach 3 to 5 with post-flight hardware recovery

Science
The ignorosphere, explored

50 to 100 km. Too high for balloons, too low for satellites. Repeated flights with in-situ measurement and payload recovery

UPPER ATMOSPHERE VISUAL
Market context
$8.7B

European defense startup
investment, 2025

+500%

Growth since 2021

€900M+

ESA Launcher Challenge

$27.7B

Small launch market
by 2033

Defense capabilities

Responsive. Resilient.
Affordable. Sovereign.

Reusable space access from any military runway, without dependence on fixed launch infrastructure

Responsive launch

Rapid deployment from existing airfields. No fixed, targetable launch pads. The runway is the launch pad

ISR overmatch

Jet cruise for range. Rocket boost above 80,000 ft. Collect, return, land. Fly again

Hypersonic testbed

Test materials, sensors, systems at Mach 3 to 5. Post-flight recovery and inspection

Launch pads are fixed targets

A runway-operated vehicle launches from any suitable airfield. This is the difference between a capability that survives the first hours of a conflict and one that does not

NATO STARLIFT
EU Space Strategy for Security & Defence
EDF REACTS
EASA Higher Airspace Operations 2027+
Defense inquiry

Capabilities briefing, R&D collaboration, partnership

[email protected]
Our story
Started with a rocket engine at a university lab

A propulsion research project that outgrew the lab. A team of engineers who decided to build something that flies. The only company in the Czech Republic developing liquid rocket propulsion and reusable flight systems.

TEAM PHOTO
At test stand / in workshop
The team
PORTRAIT
[Name]
CEO & Co-founder
PORTRAIT
[Name]
Propulsion Lead
PORTRAIT
[Name]
[Role]
PORTRAIT
[Name]
[Role]
Aerospace ecosystem
Czech Republic

120+ aerospace companies. ESA member since 2008. EUSPA headquartered in Prague. Dense supplier network for propulsion, composites, avionics

Partner
Partner
Partner
Partner
News
2026
Hot-fire test campaign completed

Liquid rocket engine successfully test-fired. Regenerative cooling nominal. Thrust exceeding design target.

Photo
2026
PARSEC at Future Forces Forum 2026

Innovation Pavilion, PVA EXPO Praha, 21-23 October

Photo
2026
Company founded

PARSEC formally established as an aerospace company

Photo
Careers

Build what flies

The first space flight program of its kind here. Real propulsion hardware, not simulations. A small team where your work directly shapes what flies

WORKSHOP PHOTOS
Open positions
Propulsion Engineer
Full-time  |  Prague / Brno
Apply →
Avionics / GNC Engineer
Full-time  |  Prague
Apply →
Composite Structures
Internship  |  Prague
Apply →
Get in touch

Different channels for different conversations

Investors
invest@parsec.space

Seed round, strategic partnerships

Defense & Government
defense@parsec.space

Capabilities, R&D, procurement

Media & Press
media@parsec.space

Interviews, press materials

Download press kit
General
hello@parsec.space

Talent, research, partnerships, everything else