M0
Architecture & Safety Plan
Down-select, supplier MoUs, HAZOP/FMEA v1, PRD & ventilation strategy, test rig approvals.
Depends
—
Outputs
Test authorization, baseline safety artifacts.
Roadmap & Milestones
Engine Evidence → Passenger Aircraft
A paced sequence that prioritizes data, safety, and certification. Each milestone unlocks the next—culminating in mid–long range passenger operations across multiple authorities.
Milestones & Deliverables
Dependencies and artifacts are explicit to keep the pace across engineering, certification, and operations.
M1
Single-Sector: Cold-Flow + Ignition
Ignition mapping and flashback margins (unpressurized/low-pressure); DAQ and interlocks validated.
Depends
M0
Outputs
Ignition map v1, safety interlocks validated.
M2
Pressurized Hot-Fire
Single-sector hot-fire at pressure; NOx and stability maps across φ / load; initial geometry tuning.
Depends
M1
Outputs
NOx/stability map v1; geometry shortlist.
M3
Core-Engine H₂ Ground Run
Fuel metering, transients, surge margins; controls/health monitoring; engine-airframe trades.
Depends
M2
Outputs
Core run data pack; controls tuning notes.
M4
Flight Testbed Kick-off
DOA/ODA engagement, approvals, airframe integration plan; airport ops rehearsal.
Depends
M3
Outputs
Testbed plan & approvals; ops playbooks v1.
M5
Global Cert Mapping
Means-of-compliance drafts for EASA/FAA + partner authorities; artifact packaging and deltas.
Depends
M2–M4
Outputs
Authority-specific packs; audit trail v1.
M6
Airport Pilots
Refuel/turnaround rehearsals; PRD/ventilation validation; procedures, training & maintenance flows.
Depends
M4–M5
Outputs
Ops playbooks v2; partner sign-offs.
M7
Passenger Program Gate
Sizing for mid–long range aircraft; supply plan; international deployment sequencing.
Depends
M5–M6
Outputs
Go/No-Go; aircraft program launch.
Risks & Mitigations
We continuously reduce technical and certification risk—with traceable artifacts.
Flashback / Stability
Pressurized maps; staged mixing; ignition control
Emissions
Lean-premix/micromix geometry tuning; NOx maps
Ground Ops
PRD, purge, ventilation, detection; playbooks
Evidence
Automated data capture; MoC drafts; audit trail
Engines first. Certification from day one.
Co-develop modules or host airport pilots to accelerate the path to mid–long range passenger service.