BeAPilot.
Online CX-3 emulator

CX-3 flight computer emulator

Get familiar with the electronic flight computer used in aviation study. This is ASA's official CX-3 emulator, embedded free — useful for practising time, speed, distance, wind and fuel calculations for the DGCA Navigation paper.

This is ASA's official CX-3 Flight Computer Emulator, embedded from prepware.com. “CX-3” is a trademark of ASA (Aviation Supplies & Academics); BeAPilot is not affiliated with or endorsed by ASA and includes it purely as a free practice aid.
Not loading? Open the CX-3 emulator in a new tab

Prefer a lightweight interactive version? Try our own flight computer trainer, or study the Air Navigation lesson.

How it works

  1. 01

    Open the emulator

    ASA's CX-3 emulator loads right below — no download, no sign-up.

  2. 02

    Learn the functions

    Time, speed and distance, wind, fuel, altitude and unit conversions.

  3. 03

    Cross-check your working

    Use it alongside our own trainer and the Air Navigation lesson to build fluency.

Common questions

Is this the official ASA CX-3?+

Yes — it's ASA's own CX-3 Flight Computer Emulator, hosted by ASA (prepware.com) and embedded here for convenience. BeAPilot is not affiliated with or endorsed by ASA; 'CX-3' is ASA's trademark.

Is it free to use?+

The emulator is provided online by ASA and is free to use here. If you want the full CX-3 device or ASA's paid materials, those are available from ASA directly.

Can I use a CX-3 in the actual DGCA exam?+

Rules on permitted flight computers are set by DGCA and can change — the manual CRP-5/E6-B is the traditional standard. Confirm what's currently permitted with DGCA or your school before relying on any electronic computer in the exam.

How is this different from your flight computer trainer?+

Our own flight computer trainer is a lightweight interactive tool with live results and step-by-step practice problems, built for learning the methods. This page embeds ASA's CX-3 so you can get used to the electronic device's interface.