Mid–Long Range Aircraft Family
Built around hydrogen-combustion turbofans (no cryogenics) using compressed gaseous H₂ (350–700 bar). Modular tanks, cert-aligned systems, and airport-ready ops for multi-country routes.
Engines first. Aircraft next. We scale cabin and range while reusing the core engine, controls, and H₂ delivery.
Family Overview
Single-aisle, 120–180 pax studies; 1,200–1,800 km class with modular tank count and CG-managed placement.
High-capacity concepts targeting 2,000–3,200 km class; extended tanks + optimized drag & structure.
Engine + tank kits where structure/CG permit; certification from day one with authority-specific paths.
- Common engine core, delivery, and controls across sizes.
- Airport-pragmatic turnarounds and maintenance flows.
- Exportable evidence packs for multi-authority certification.

System Architecture
- Storage & Delivery: Type-IV tanks (350–700 bar), staged regulation, PRD, ventilation, and leak detection feeding the engine.
- Combustion: Lean-premix/micromix modules tuned for ultra-low NOx with mapped flashback and stability margins.
- Controls & Integration: Metering, ignition, throttle transients, and engine–airframe trades for CG & maintainability.
- Evidence Pipeline: Tests → NOx/stability maps → HAZOP/FMEA → means-of-compliance per authority.

Modules reuse across aircraft sizes; tank count/placement and structure scale with mission.
Performance & Missions
Early configurations target mid–long range passenger routes with airport-pragmatic fueling, purge, and detection. We trade tank count, placement, and aero to balance payload and range.
Representative Missions
Representative Missions
- • Mid-range: 1.5–3 hr sectors; hub– spoke and point-to-point
- • Long-range: 3–4.5 hr sectors with optimized aero and tank layouts
- • Cross-border: multi-authority ops with exportable evidence packs
- • Retrofit: platform-specific where structure and CG permit
Cabin & Ops
Passenger experience and operations designed together—fast turnarounds, maintainable systems, and clear safety communication from cockpit to cabin.
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
Liberia, Costa Rica (LIR) — Built for Velocity
Cooperative authorities, repeatable weather, and H₂ access compress cycles from design to data—de-risking aircraft choices sooner.
- Coordinated airport & regulatory support for fast turnarounds
- Ground-ops playbooks aligned with PRD/ventilation/detection
- Global partners welcomed with exportable evidence packs
Partner With Us
We co-develop modules and share test data to accelerate certification-ready products.
