ERWIQ — The Intelligent Engineer
Design aircraft from mission to report.
Building the AI-native operating system for aerospace engineering — established methods, orchestrated by AI, every result traceable to the tool run that produced it.
- Mission
- Design
- Analyze
- Report
The problem
Conceptual design lives in a dozen disconnected tools.
Requirements in spreadsheets, sizing scripts in MATLAB and Python, aero runs in XFOIL and AVL, and the results stitched into documents and slide decks by hand. Every handoff is manual — data re-entered, assumptions lost along the way.
- Excel
- MATLAB
- Python
- XFOIL
- AVL
- Reports
- PowerPoint
- Mission
- Engineering Engine
- Aircraft Design
- Report
The same established methods, run as one orchestrated flow — with every result traceable to the tool run that produced it.
Platform
One platform for the conceptual design loop.
From mission parsing to the engineering report — six capabilities that run as one flow.
Mission Intelligence
Describe the mission in plain language — range, payload, endurance, launch constraints. ERWIQ parses it into a structured design spec.
Aircraft Design
Conceptual sizing runs as an orchestrated sequence — wing sizing, weight buildup, geometry — not improvised numbers.
Performance Analysis
Aerodynamic and stability estimates with interactive charts for every design run, refined across iterations in the same session.
Engineering Reports
A structured PDF engineering report generated on demand from actual run results — requirement, sizing, aero, propulsion, geometry.
Engineering Trace
Every number links back to the tool run that produced it, and refinements carry values forward with explicit provenance badges.
Component Selection
Airfoil selection plus motor, propeller, battery, and ESC sizing matched to the mission's power and endurance requirements.
How it works
Requirement to report.
One design run, every step explicit — the same numbers you see are the numbers the tools produced.
Mission
mission parsingDescribe the requirement in plain language — range, payload, endurance, launch constraints.
Requirements
design specThe mission is parsed into a structured design spec — the requirements every downstream tool works from.
Sizing
size_aircraftInitial aircraft sizing from the mission: wing area, span, aspect ratio, wing loading, cruise and stall points.
Weight
size_aircraftA mass buildup — gross, empty, battery — kept consistent as the design iterates.
Battery
size_propulsionBattery energy and capacity sized for the endurance target with reserve margin — chemistry, voltage, and mass included.
Propulsion
size_propulsionMotor class, propeller, and ESC matched to the power the mission actually demands.
Performance
select_airfoil · run_aero_analysisAirfoil selection and aerodynamic analysis — polars, L/D, trim — with interactive charts for every run.
Geometry
generate_geometryAn outer mold line generated from the sized dimensions, viewable in 3D.
Report
report generatorA structured PDF engineering report, generated on demand from the actual run results.
The product
Numbers with provenance.
A real design session in ERWIQ — UAV conceptual sizing with charts, and every section labeled as recomputed or carried forward when a design is refined.

Under the hood
Real tools, orchestrated.
The engineering is built on established, citable methods — the AI's job is to run them in the right sequence and explain the results.
User
mission in plain language
ERWIQ
app · API · run queue
GPT
tool-loop orchestration
Engineering Engine
sizing · aero · propulsion · geometry
Results
traceable runs · charts
Reports
PDF · object storage
AVLMIT · Drela
Vortex-lattice aerodynamic & stability analysis
XFOILMIT · Drela
Subsonic airfoil analysis and polars
OpenVSPNASA
Parametric aircraft geometry
OpenAI
Mission parsing and tool orchestration
Plotly
Interactive engineering charts
FastAPI
Python engineering & API backend
Next.js
Web application frontend
Philosophy
Engineering First.
AI Second.
ERWIQ is an aerospace engineering platform that combines established engineering methods with AI orchestration. You describe a design requirement in plain language; ERWIQ plans the work and runs it through a sequence of engineering tools — conceptual sizing, airfoil selection, aerodynamic and stability estimates, propulsion, geometry — then presents the results with charts, a full narrative, and a structured PDF report.
It's built for aerospace engineers, UAV teams, and researchers who want automation without giving up scrutiny. The core principle: every number is traceable. Results come from named tool calls — never from a language model inventing values — and when a design is refined, each section is labeled as recomputed or carried forward, so you can always see what changed and what didn't.
Vision
The future of aircraft design is collaborative.
The interesting question isn't whether AI can design an aircraft on its own — it's how much further an engineer can go when the busywork disappears. ERWIQ exists to shorten the distance between a requirement and a concept you can scrutinize: the orchestration is automated, the record stays open, and the judgment calls stay where they belong — with the engineer.
That division of labor is the direction, and it doesn't change as ERWIQ grows: engineers set the intent, challenge the results, and make the decisions. ERWIQ runs the sequence, keeps the trace, and shows its work. Acceleration, not replacement.
Start with a mission.
Describe the requirement in plain language — ERWIQ runs the sequence and shows its work.
Launch App