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RAGAM Cryogenic Engine

Reusable Agile Gas Arching MethaLOX engine delivering high-efficiency staged combustion thrust for orbital-class vehicles.

Overview

RAGAM is a next-generation cryogenic engine developed to meet the evolving demands of orbital and deep-space missions. Fueled by liquefied methane and liquid oxygen, it uses a staged combustion cycle to achieve high thrust-to-weight ratio and exceptional reusability. The engine is designed for modular integration across launch vehicles from small-lift to super-heavy configurations.

  • 🔁 Reusability optimized for >20 flight cycles
  • 🧊 Operates on ultra-cold MethaLOX propellants
  • ⚙️ Closed-cycle staged combustion for high efficiency
  • 🎯 Engine gimbal capability for vectoring and control

Engine Visualizations

Naracha Render

Simulation: Controlled hot-fire visualization during ignition sequence.

Technical Highlights

Thrust Class

88 tons (vacuum), 75 tons (sea level) class

Chamber & Nozzle

Regeneratively cooled copper-alloy chamber with high-expansion cryogenic nozzle

Cycle

Full-flow staged combustion cycle with methane-rich preburner

Reusability

Designed for 20+ reuse cycles with minimal refurb time

Vectoring

Dual-axis hydraulic gimbal system ±6° for flight control

Applications

Primary propulsion for reusable boosters, upper stages, and lunar transfer modules

Material & Cooling Innovation

RAGAM leverages high-temperature nickel alloys and Monel-class supermetals in its chamber and turbopump housing, optimized for sustained operation under cryogenic and high-pressure oxygen environments. Regenerative cooling paths are intricately cast and 3D printed to maximize wall longevity while preventing hot-spot formation during long burns.

Development Roadmap

  1. Phase 1: CFD, CFX and combustion modeling with flow path simulation
  2. Phase 2: Sub-scale component testing (injectors, turbopump blades)
  3. Phase 3: Full-scale hotfire tests with reusability benchmarks
  4. Phase 4: Launch integration and in-flight testing