Definition
The maximum total weight of an aircraft, including the airframe, engines, fuel, oil, occupants, baggage, and cargo, that the manufacturer has certified as safe for operation. This limit is published in the aircraft's type certificate and Pilot's Operating Handbook, and exceeding it is prohibited by regulation.
Plain English
The heaviest the whole aircraft, with everything and everyone on board, is allowed to be. The manufacturer sets this limit and it cannot legally be exceeded.
Context Anchor
You will see this term in weight and balance discussions, aircraft limitations, and preflight loading decisions.
Derivation
“Gross” comes from older uses meaning “whole” or “total,” as in a total amount before anything is taken away. In aviation, gross weight means the aircraft’s total weight, not just its empty weight or cargo weight.
Why Pilots Care
Exceeding approved gross weight reduces climb performance, increases stall speed, and can cause structural damage or loss of control.
Intuition Check
Do not read “approved” as “probably okay” or “recommended.” Here it means officially allowed. Do not read “gross” as “large” in a vague way; it means the total aircraft weight.
Example Sentence 1
After loading the passengers and baggage, the pilot calculated the total weight and confirmed it was below the approved gross weight before departure.
Example Sentence 2
The mechanic noted that repeated operations above approved gross weight had stressed the wing spar beyond limits.