CG Finder ‪+‬ 4+

Monty's Code

Designed for iPad

    • 5.0 • 2 Ratings
    • $0.99



Dynamically view your current center of gravity by adjusting the weight of each station.

A simple way to see if you are within the center of gravity limits for your aircraft (or any object). NOTE-This app does not use the traditional graph/chart to display your center of gravity. Look at the supplied screenshots or web site videos to see how I've chosen to show it. (Also check the web site to get instructions on how to use this app to find the center of gravity for non-aircraft objects).

As you use the slider to change the weight of each station, the app allows you to see in real-time how the change affects your aircraft's current center of gravity. First, enter a ARM and weight values for the aircraft, pilot and fuel (additional stations are available for passenger, back seat and baggage etc). Before continuing, you must also enter the maximum allowed weight for the aircraft as well as the Forward & Aft CG limits.

With all data entered, the app runs the initial CG calculation and presents a new screen with a few different ways to increase/decrease the weight of each position individually. You can enter values directly into a typical text box, use a slider or +/- nudge buttons. The iPhone/iPad/iPod Touch runs the calculation every time you adjust a weight and displays the current "Takeoff CG" and "0 Fuel CG" based on the new numbers. You will receive a warning if the CG is too far Forward/Aft or if you have gone overweight.

The CG Finder app gives you a fast, easy, and interesting way to see how the weight of each position affects your overall center of gravity. Traditionally, a graph is used to show the pilot where his center of gravity will be during flight. In this app, I have chosen to display it in a more easy to read fashion. Your current CG is displayed with two rings that each slide on their own bar. One ring displays your "Takeoff CG" and the other shows your CG with no fuel ("0 Fuel"). While a ring is green you are within the CG limits you entered earlier. If a ring turns red your CG is beyond those limits and you need to adjust weight somewhere.

You are able to stay on this screen while changing weights and viewing results. There should be no need to reload or change screens once you reach the main screen. However, changing screens will be necessary if you need to enter new or additional ARM values.

The app allows for 5 custom US Measurement aircraft and 5 Metric aircraft. Each aircraft can have a custom name along with custom names for each station.

I have enjoyed creating this app and look forward to hearing from those who find it useful.

Website contact form:

Also stay in touch with:
Twitter -

This software and associated data are provided 'as is' without any further warranties or support and are to be used at your own risk. No responsibility is taken by the creator of this software for its use or misuse, the data supplied with it, or for the correctness of any information it provides. It is not a substitute for the current Pilot's Operating Handbook (POH) for your aircraft. Always refer to the current official POH for its instructions and requirements. You must first agree to verify the information given here with your own W&B calculations before you will be allowed to continue.

App preview video music by

What’s New

Version 3.0

Updated for iOS 13
iPad views are now native and not inlarged to fit screen

*** Next version coming in a few weeks that will support Dark Mode and allow for transferring numbers to another device ***

(App preview video music by

Ratings and Reviews

5.0 out of 5
2 Ratings

2 Ratings

App Privacy

The developer, Monty's Code, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

More By This Developer

You Might Also Like