HENDOI

About us · aerospace software from Chennai

Aerospace software,
written for this decade.

HENDOI TECHNOLOGIES PRIVATE LIMITED builds HENFOIL and HENSYNTH — browser tools for airfoil and aircraft conceptual work — so teams can decide earlier with labelled methods, honesty gates and a trail that survives a design review.

Base
Chennai, India
Products
HENFOIL · HENSYNTH
Delivery
Browser SaaS
Standard
Honesty gates

Who we are

An aerospace software company, registered in Chennai.

HENDOI TECHNOLOGIES PRIVATE LIMITED is a purely aerospace-specific software engineering company based in West Mambalam, Chennai. We design, sell and deliver aerospace engineering software online to OEMs, Tier-1 and Tier-2 suppliers, UAV and eVTOL manufacturers, universities, research labs and design bureaus worldwide.

The airfoil section is where much of a vehicle’s performance is set. HENFOIL is built around that decision: geometry that is proven clean, analysis that climbs only as far as the question needs, and a selection trail that can sit in a design review. HENSYNTH carries the next step — mission requirements, screening compliance and conceptual synthesis — on the same HENDOI account.

The work is code, solvers and the discipline to say what each result is. Screening outputs support early design. Certification CFD, certification FEA, wind-tunnel campaigns, flight test and a licensed engineer’s judgement still decide what flies. We write software for the decisions before those campaigns — not as a substitute for them.

Vision & mission

Why HENDOI exists — and what we ship every day.

01 — Vision

Early aerodynamic and aircraft decisions with the clarity of a design review.

A university lab and an OEM should be able to see the same thing: the geometry, the method, the mission condition, and why a section or a candidate was chosen. No black-box score. No hidden solver. No exported plot without a method ID.

We envision aerospace teams worldwide — from Chennai to every OEM desk that needs a faster screening loop — sharing a common, browser-native trail from airfoil to conceptual aircraft, before expensive campaigns begin.

Clarity is the product: labelled physics, honesty gates, documented selection and exports that survive review. That is the standard we build toward.

02 — Mission

Put serious aerospace software in the engineer’s browser — and keep its limits explicit.

Ship tools that are computationally serious and honest about what they are not. Speed comes from a clear ladder of methods, shared projects, Team seats, an automation API and technology written for how teams work now — not from promising certification results in a SaaS plan.

Our day-to-day mission is concrete: keep HENFOIL and HENSYNTH live, deepen field-level help and API docs, tighten the section-to-aircraft workflow, and answer support with the same honesty we put in the gates.

Plans change monthly usage budgets. Every paying plan unlocks the full product set. Students, professionals and teams get the same engineering — different meters.

What we build

Products for the decisions that shape a wing.

HENFOIL

Available

Browser airfoil software: digitize and import, geometry quality gates, a labelled analysis ladder through VIC viscous polars, compare and selection, envelopes, inverse design, optimization, robustness checks, HEN-AI explanations of calculated results, and PDF / STEP exports.

Student (USD 9), Professional (USD 29) and Team (USD 89) unlock the same full feature set — including HENSYNTH. Monthly usage budgets are what change.

HENFOIL overviewOpen HENFOILPricing →

HENSYNTH

Live now

Aircraft conceptual and preliminary screening: geometry, mission requirements, Run screening, compliance margins, synthesize candidates, Mission, Performance, Trades, Optimize and downloadable reports. Same login as HENFOIL. Still screening — not a certification showing.

Open HENSYNTH

Software we stand behind

Built as engineering software — not a marketing demo.

HENDOI is software-first. Frontends are browser workspaces. Backends run solvers, quotas, jobs and mail. Every customer-facing number is meant to be traceable to a method, a gate or a stored run — never to a guessed coefficient.

C++ engines

Solvers and screening physics live in compiled backends. The UI calls them; it does not invent coefficients. Method IDs travel with the result.

Honesty gates

Geometry, mesh and analysis packs report ACCEPT, ACCEPT_WITH_WARNINGS or REJECT. A smooth plot that failed a gate does not get a free pass.

One account

Register once on HENDOI. Launch HENFOIL for the section and HENSYNTH for the aircraft. Usage meters and Team seats are shared where the plan says so.

Automation API

Keyed HTTPS calls mirror the workspace analyses — polars, compare, optimize, jobs — with the same quotas and the same labelled responses.

HEN-AI

The copilot explains calculated results and calls tools. It does not invent performance numbers that were not computed.

Exports you can file

Datasheets, design-review PDFs, STEP/IGES lofts, Selig and rotor formats, HENSYNTH report zips — subject to plan PDF and storage limits.

Developers: read the HENFOIL API documentation. Operators: see plans and usage limits, FAQ, and security.

Taking it forward

How we plan to grow HENFOIL and HENSYNTH.

HENFOIL and HENSYNTH are live today. We are a purely aerospace-specific software engineering company. Next we deepen those products and launch HENMESH (meshing preprocessor), HENFLOW (aerospace CFD 2D/3D) and later HENSTRUCT (aerospace structural analysis & simulation 2D/3D). Here is the direction we are steering toward.

  1. 01

    Deepen what is live

    Keep shipping reliability, clearer field help, denser how-to content and API documentation so teams can adopt HENFOIL and HENSYNTH without guesswork.

  2. 02

    Tighten the section → aircraft loop

    Make carrying a defended section from HENFOIL into HENSYNTH planform and mission work smoother — still screening-grade, still labelled, still reviewable.

  3. 03

    Launch HENMESH

    Aerospace-specific simulation preprocessor and meshing software — 2D and 3D mesh preparation aimed at aircraft and airfoil workflows. We are in the process of bringing HENMESH to launch.

  4. 04

    Launch HENFLOW

    Aerospace-specific CFD analysis in 2D and 3D — flow simulation built for aerospace engineering use, not a general-purpose multiphysics catch-all. HENFLOW is in the launch process alongside HENMESH.

  5. 05

    HENSTRUCT next

    Aerospace-specific structural analysis & simulation in 2D and 3D — the structural sibling in the same aerospace software family. Planned after the meshing and CFD launch path.

  6. 06

    One aerospace stack

    HENDOI stays a purely aerospace-specific software engineering company: section (HENFOIL), aircraft conceptual (HENSYNTH), mesh (HENMESH), CFD (HENFLOW), structure (HENSTRUCT) — browser delivery, labelled methods, honesty about what each product is for.

  7. 07

    Stay honest about limits

    Live HENFOIL and HENSYNTH remain screening tools until stated otherwise. Upcoming CFD and FEA products will be described with their own method labels and intended use. Wind tunnel, flight test and authority-approved methods still decide certification.

RegisterTalk to us about OEM or Team useRead the blog →

Aerospace 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.

  • What slows your team with tools you use today?
  • What would make HENFOIL, HENSYNTH or our upcoming stack (HENMESH, HENFLOW, HENSTRUCT) more useful in your pipeline?
  • Ideas for mesh, CFD or structural workflows we should prioritise next?
WhatsApp — share ideasCall +91-9677261485Email support@hendoi.comContact form →

Why we build

To disrupt how the aerospace industry makes an early decision.

Section work still lives in scattered scripts, aging desktop codes and tools that hide their assumptions. We apply current software — browser delivery, labelled solvers, optimization and an assistant that explains computed results — so a team can move with a trail, and with the latest practical technology, before a full-aircraft campaign begins.

01

One trail

Create, import or digitize a section, pass a geometry gate, climb a labelled analysis ladder, then export a decision someone else can defend.

02

Current software

HENFOIL and HENSYNTH run in the browser. Optimization, robustness, synthesis and HEN-AI sit on the same account — no desktop install archaeology.

03

Physics, named

Thin-airfoil, panel, boundary-layer screen and VIC viscous polars stay labelled. Aircraft screening carries method IDs. Review sees the method behind every number.

04

Access

OEMs, UAV teams, universities and design bureaus get the same feature set. Plans change the monthly budget, not the engineering.

Leadership

Founder & CEO

Portrait of Sundarapandi Muthupandi, Founder and Chief Executive Officer of HENDOI
Sundarapandi Muthupandi

Founder & Chief Executive Officer

Sundarapandi
Muthupandi

Aeronautical engineer and software developer. Seven years of experience in coding and engineering software — CAD, CAM and CAE — turned into the products HENDOI ships.

Experience
Seven years writing code and building engineering software — CAD, CAM and CAE — and shipping that work as products.
Education
B.E. Aeronautical Engineering, Excel College of Engineering and Technology, Namakkal District, Tamil Nadu (2010–2014).
Role
Founder and Chief Executive Officer of HENDOI TECHNOLOGIES PRIVATE LIMITED.
LinkedIn profile

Registered office

HENDOI TECHNOLOGIES PRIVATE LIMITEDHanumar Koil Street,West Mambalam,(Near Mambalam Railway Station)Chennai City,Tamilnadu State,INDIA - 600033

GSTIN 33AAGCH6765E1ZK

CIN U62099TN2023PTC158630

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