What does Mass & Balance cover?
Mass & Balance is about loading the aircraft so that mass and centre of gravity stay within certified limits throughout the flight. It is a calculation subject: once you master the standard methods, the questions become fast and reliable marks.
What this subject covers
- Definitions of mass and limitations
- Centre of gravity and the CG envelope
- Load and trim sheets
- Effect of loading on CG position
- Cargo loading and mass changes in flight
- Standard masses for passengers and baggage
Study tip
These are calculation questions — build a repeatable method and practise it until it is automatic; speed and accuracy matter more than theory here.
How MyATPS helps you pass Mass & Balance
MyATPS turns Mass & Balance into focused practice: thousands of questions organised by the official EASA learning objectives, with a research-based explanation on every question so you understand why each answer is right. Track your weak areas, retry what you miss, and build real exam confidence — starting on the free plan, no credit card required.
Frequently asked questions
Is Mass & Balance calculation-heavy?
Yes. It is one of the more numerical subjects. The good news is that the methods are repeatable, so consistent practice turns it into a high-scoring subject.
What is the CG envelope?
It is the range of centre-of-gravity positions, at a given mass, within which the aircraft is certified to be safely controllable. Many questions test whether a given loading stays inside it.
How should I revise it?
Practise full worked problems repeatedly rather than reading theory. MyATPS lets you drill subject-031 questions until the method is automatic.