BMAA Centre of Gravity Calculation Guide

A short video by the British Microlight Aircraft Association (BMAA) explaining the principles of how to calculate an aircraft's centre of gravity. Topics include; defining terms, explaining the principle of moments, and finding information on aircraft datasheets. The video ends by working through a practical example on a fixed-wing or 3-Axis Microlight.

CONTENTS
Intro 0:00​ – 0:30​
Moments 0:31​ – 0:54​
CoG Equation 0:55​ – 1:04​
Datums & Arms 1:05​ – 2:40​
Weights 2:41​ – 3:54​
Worked example 3:55​ – 11:59​
Summary 12:00​ – 12:35​

For more information please see the BMAA website

Pilot Information Leaflet 001 - The Importance of Weight and Balance

Technical Information Leaflet 012 - Weight, Balance & Weighing:

WEBLINKS

Please subscribe for more flying content & thanks for watching!

[je-qlwj]

Excellent.
Anyone reading the comments, please watch it all. It may seem heavy going to start with, but it isn’t and is a very clear and helpful video.

[itsskip]

Thanks for helping! Currently studying for the check ride and written right now.

[boymugnaadventure]

New subscriber sir... Yhnks for this videp sir...it helps me a lot

[joskovich]

Great, another very hard subject down! Thanks for the help! :)

[KGReef]

Very interesting. I may or may not be more confused now lol. Good Information though.

[thefreak]

but we are not incorporating the moment offered by tail and wings or moment by any aerodynamic forces, is it correct?

[SimonAmazingClarke]

While your calculations are correct you go about it in a long windedway. Basically, if you remive the hash line from the box between total weight, and total moment, then divide the momemt by the weight you get your answer. A demonstration on excel would be a lot simpler.

[romancetalking]

May I ask about how can we choose the datum line and if the datum line is different between aircraft