Product
What is HENFOIL?
HENDOI · 22 September 2026
A deep look at HENDOI’s browser-based airfoil design, analysis, selection and optimization platform — methods, honesty gates, and who it is for.
The short answer
HENFOIL is HENDOI’s browser-based platform for airfoil design, analysis, selection and optimization. It is built for the section decision trail that sits before wing-level lock-in: create or import a shape, prove the geometry is clean, climb an analysis ladder, build polars, compare and rank, inverse-design or optimize, check robustness, then publish a datasheet or loft for archive.
It is not a wind-tunnel. It is not flight-certification CFD. It is not a structural NASTRAN replacement. It is a screening and design tool with labelled methods, so early decisions stay reviewable.
Who it is for
- Aerospace engineers choosing wing or propeller sections
- UAV and eVTOL teams iterating foils quickly
- Universities and research groups teaching or screening sections
- Students on shared HENDOI plans who need the full toolset
- Wind-energy and aero designers who need a documented selection trail
What you can do in the product
HENFOIL covers generation and import (NACA families, CST / PARSEC, Selig–Lednicer DAT, image digitize), geometry conditioning and quality gates, thin-airfoil and Hess–Smith panel analysis, Thwaites–Head IBL and eⁿ screens, VIC viscous polars as the production polar engine, envelopes, batch, weighted compare with why-#1, inverse and optimize paths, robustness studies, parametric wing loft with station-wise VIC, unit-span section FEA screens, HEN-AI explanations of stored results, and exports (datasheet / design-review PDF, STEP/IGES loft, HENFOIL design package).
Named research cards in the library stay metadata until licensed attested ingest. HENFOIL does not invent UIUC ordinates or scrape catalogs into fake precision.
Plans and access
One HENDOI account unlocks HENFOIL on henfoil.hendoi.com. Student (USD 9), Professional (USD 29) and Team (USD 89) all include the full product. Only monthly usage budgets differ — polars, optimize runs, HEN-AI requests, storage and related quotas.
Honesty contract
Every important method carries an ID. Geometry, mesh and analysis packs report ACCEPT, ACCEPT_WITH_WARNINGS or REJECT. A VIC polar is labelled as a VIC polar. Optional Euler, IB pictures and gated RANS-SA stay screens. That honesty is the product: early work that does not overclaim.
Open HENFOIL from henfoil.hendoi.com, or start from the HENDOI pricing page if you need an account.
In simple words: what this page is for
A deep look at HENDOI’s browser-based airfoil design, analysis, selection and optimization platform — methods, honesty gates, and who it is for.
This lesson exists because section decisions fail when geometry, method labels and selection reasons are scattered. What is HENFOIL? helps you keep a clean trail from shape to polar to choice.
Why the topic matters
Engineers lose time when a title sounds clear but the page only sketches the idea. This article expands What is HENFOIL? so you can answer three questions without jargon: what is the idea, when do you use it, and how do you check it in a HENDOI product.
Read the sections above for the core definitions. Use the steps below to move from reading into a real project trail you can share with a teammate.
How to apply this in HENDOI
In practice: create a HENDOI account or log in, open HENFOIL, bring a section in (create, import DAT, or digitize), pass the geometry gate, climb the analysis ladder only as far as the decision needs, then compare and archive. Every calculated number should keep its method label.
When the section choice is ready for the aircraft, continue in HENSYNTH for mission, compliance and trades. Same account. Same plans.
What this page will not claim: a teaching polar or geometry note is not a flight-Re certificate. HENFOIL labels methods so you know what you bought. Tunnel data and professional judgement still sit outside any single software run.
Checklist before you leave this page
- Can you state the idea of What is HENFOIL? in one sentence?
- Do you know which product owns the next action — HENFOIL or HENSYNTH?
- Will every number you keep carry a method label or a stored-run source?
- If you are new here, have you opened Register or Login?
Related reading on this site
Both products live
Use this lesson in the HENDOI workspace
This page sits in Product. HENFOIL and HENSYNTH are both live on one account. These articles are screening lessons — not certification reports.
Live · section
HENFOIL
Turn this lesson into a section you can draw, check, analyse and compare. Run the polar at the Reynolds number of the vehicle. The method name stays on the result.
To Know MoreLive · aircraft
HENSYNTH
After the section is chosen, set geometry and mission requirements, run screening, read compliance, synthesize candidates and download or mail the report.
To Know MoreAerospace industry collaboration
Share thoughts and ideas — help us build better solutions
We are looking for aerospace industry collaboration. Share your thoughts, ideas and real workflow challenges so we can improve our products and deliver the best solutions for OEMs, UAV / eVTOL teams, labs and aeronautical engineering companies.
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