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Low-angle view of APEX propulsion development hardware: polished metal sections, cabling and a large conical section, with the Indian flag in the background.

APEX Rocket Systems

Engineered to ascend.

From propulsion hardware toward validated rocket systems.

APEX Rocket Systems × Gamyaa AeroSystemsEngineering collaboration toward shared rocket-system development and validation goals.

APEX propulsion development hardware on a white workbench, in front of an APEX Rocket Systems poster and the Indian flag.

Built at APEX

5 kN-ClassLiquid Engine Demonstrator

  • 5 kN class
  • Gas-generator cycle
  • Liquid propulsion

Hardware built

Real hardware

The hardware is real.

Close-up of APEX propulsion development hardware with flanged metal sections, fluid fittings, yellow connectors and cabling.
Machined and fabricated metal components laid out on a dark bench, including flanged plates, bearings and small fittings.
Top-down view of APEX propulsion development hardware on a wooden floor, with bent stainless tubing, fittings, cabling and a spherical vessel.
Detail of APEX propulsion development hardware: a spherical vessel in the foreground, metal assemblies, tubing and cabling behind.
APEX propulsion development hardware standing on a workshop floor, with tubing, cabling and a spherical vessel above a large conical section.

APEX propulsion development hardware

View hardware

Engine → rocket system

An engine is the beginning.

SOFTWAREGUIDANCE & CONTROLAVIONICSSTRUCTURESPROPULSIONGROUND & TEST
Schematic for orientation — not an APEX vehicle design.

Physical ↔ digital

Build it.Model it.Test it.Correlate it.

Physical

APEX propulsion development hardware standing on a workshop floor, with tubing, cabling and a spherical vessel above a large conical section.

Build Instrument Test Measure

Engineering correlation

Digital

Model Predict Compare Update

Physical evidence builds confidence. Digital models help engineers learn more from every test.

Explore digital validation

Engineering ecosystem

APEX doesn’t have to build everything alone.

Specialist partners contribute critical capabilities across embedded systems, digital engineering, cybersecurity, AI, manufacturing, sensors, avionics, testing and workforce development.

APEXSystem authority
Specialist ecosystemAvionics · Sensors · GNC · Manufacturing · Testing

APEX retains system authority.

Explore the engineering ecosystem
Detail of APEX propulsion development hardware: a spherical vessel in the foreground, metal assemblies, tubing and cabling behind.

APEX Rocket Systems

From hardwareto system confidence.

Building a credible path from propulsion hardware toward integrated rocket systems through disciplined engineering, specialist partnerships and physical evidence.