Engines
Jet-class thrust using compressed gaseous H₂ (350–700 bar), paired with a combustor targeting ultra-low NOx, cert-aligned controls, and airport-ready storage & delivery. Built for rapid iteration—and certification from day one.
Engines first. Aircraft family next. Evidence-driven, exportable across authorities.
Why Engines First
Engines are the certification and performance anchor. Proving ultra-low NOx, stability, and safety unlocks real operations faster than re-inventing the entire aircraft stack upfront.
Adapt proven cores; focus R&D on combustor, controls, and fuel delivery.
Start with gaseous H₂ at 350–700 bar to reduce ground complexity.
Evidence aligned to ARP4754A/ARP4761, DO-160, DO-178C and engine norms.
How the System Works
- Storage & Delivery: Type-IV tanks store gaseous H₂ at 350–700 bar. Manifolds, PRDs, regulators, ventilation, and leak detection enforce safe delivery to the engine.
- Mixing & Combustion: Lean-premix/micromix modules achieve rapid, uniform mixing and stable flame fronts, minimizing thermal NOx and suppressing flashback.
- Controls & Transients: Metering and logic manage ignition, start sequences, throttle response, and blowout margins under pressurized conditions.
- Evidence Pipeline: Test data flows into NOx/stability maps, HAZOP/FMEA updates, and means-of-compliance artifacts across authorities.
Architecture evolves with pressurized single-sector data; modules are designed to be reused across engine families.
Engine Architecture
Lean-premix / micromix strategies to minimize thermal NOx with strong flashback margins.
Type-IV high-pressure tanks, PRD, ventilation, purge and leak detection for real airports.
Fuel metering for wide φ and transients, health monitoring, engine–airframe trades for CG & ops.
Engine Design Principles
Evidence-first engineering that turns every test point into certification artifacts and operational playbooks.
- • Ultra-low NOx: staged mixing, temperature management, and geometry tuning.
- • Flashback-safe: clear stability margins under pressurized hot-fire conditions.
- • Airport-pragmatic: fueling, ventilation, and turnarounds that scale.
- • Controls-led: transients, ignition, and anomaly monitoring.
- • Cert-aligned: ARP4754A/4761 flow from requirements → analysis → test → evidence.
Targets & Metrics
Quantitative goals guide design trades and evidence collection.
R&D Sequence
- M1: Single-sector cold-flow + ignition; characterize flashback margins.
- M2: Pressurized single-sector hot-fire; initial NOx & stability maps.
- M3: Core-engine H₂ ground-run plan; integration & safety reviews (DOA/ODA partners).
- M4: Multi-authority cert mapping; airport pilots across 2–3 countries.
Test Assets
- • Pressurized single-sector rig with optical access
- • NOx analyzers, high-speed sensing, DAQ & logging
- • Safety interlocks, purge, ventilation, leak detection
- • Automated report generation & traceability
Airport Ops Playbook
Procedures and facility interfaces to scale hydrogen operations without cryogenics.
Certification & Safety Mapping
Artifacts flow cleanly into authority-specific packs
System process, FHA/PSSA/SSA; hazards traced to design mitigations and test evidence.
Environmental qualification + software lifecycle. Advisory AI kept out of safety-critical path.
Means-of-compliance for engines + ground operations across multiple authorities.
Partner With Us
We co-develop modules and share test data to accelerate certification-ready products.