Trishul: Transport and Reuse Infrastructure for Spacecraft, Habitat, Utilities and Life-support
India’s first human-rated fully reusable orbital launch system — engineered for dependable crew, cargo, and fuel transport to LEO settlements.
Mission Purpose
Building on the engineering heritage of Vajra, Trishul is designed for frequent launches to Low Earth Orbit with humans aboard. It delivers critical supplies, station modules, and return capability for sustained LEO presence — all within a reusability-first philosophy.
Key Specifications
- 🚀 Payload Capacity: Up to 10 tons to LEO
- 👨🚀 Human-Rated: Capsule pressure-tested to exceed global crew safety margins
- ♻️ Fully Reusable: Both stages recovered and re-flown
- 🔋 Engines: RAGAM (Stage 1), Vacuum HydroLOX (Stage 2)
- 🔥 Cooling: Regenerative composite heat shields on upper stage
- 🧠 Redundancy: Triple-fault-tolerant avionics
Vehicle Visuals & Architecture
Render: Full vehicle stack ready on launchpad
Stage 1 descending using retractable legs post separation
Crew capsule render (external view only)
Concept: End-to-end mission sequence simulation
Stage Architecture
Stage 1: Booster
- Engine: 88-ton class RAGAM MethaLOX (Staged Combustion)
- Recovery: Vertical landing via automated legs
- Material: Reusable carbon composites + ablative base shield
Stage 2: Orbital Stage
- Engine: HydroLOX vacuum engine
- Reentry: Passive glide with regeneratively cooled shell
- Structure: High-strength alloys + modular docking section
Human-Rating & Safety
Trishul is designed with triple-redundant control systems, high-margins on G-load damping, and a reinforced crew capsule that meets international abort survivability standards. The system integrates predictive maintenance telemetry and real-time decision support software for critical phases like launch and reentry.
Applications
- 👨🚀 Routine transport of astronauts to LEO space stations
- 🛰️ Cargo and fuel shuttle to orbital depots
- 🔧 Station module assembly and maintenance missions
- 🌍 Earth observation constellation servicing
Development Milestones
- Q1: Stage 2 low-G reentry trial
- Q2: Integrated abort simulation + pressurization validation
- Q3: Manned dummy capsule drop & recovery
- Q4: Trishul-D1: First full stack orbital launch