What Is Maximum Takeoff Weight in Aviation?
Maximum Takeoff Weight defined for aviation professionals, with its operational or commercial use, document context and related terminology.
Definition and Operating Context
Maximum Takeoff Weight, or MTOW, is the certified maximum weight at which an aircraft may begin its takeoff roll, subject to any lower operational limit for the actual runway and conditions.
Aviation Glossary
Term: Maximum Takeoff Weight
Category: Airline Operations & Navigation
Operational Effect
Performance, temperature, runway length, obstacles and other factors can reduce allowable takeoff weight below the structural maximum.
How It Is Used in Flight Operations
Maximum Takeoff Weight is used within dispatch, flight planning, crew procedures, aircraft approvals or air traffic operations depending on the subject. Operators must apply the version and approval basis recognized by the relevant aviation authority.
Approval and Dispatch Considerations
Equipment capability alone may not be sufficient. Operator approval, crew qualification, maintenance status, database currency, route authorization and company procedures can all affect whether the capability may be used on a specific flight.
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Performance, temperature, runway length, obstacles and other factors can reduce allowable takeoff weight below the structural maximum.
Maximum Takeoff Weight FAQ
What does Maximum Takeoff Weight mean in aviation?
Maximum Takeoff Weight, or MTOW, is the certified maximum weight at which an aircraft may begin its takeoff roll, subject to any lower operational limit for the actual runway and conditions.
Why does Maximum Takeoff Weight matter?
Performance, temperature, runway length, obstacles and other factors can reduce allowable takeoff weight below the structural maximum.
Where would an aviation professional encounter Maximum Takeoff Weight?
It is commonly encountered in airline operations & navigation documents, procedures, calculations or operating discussions where the underlying technical or commercial issue is relevant.
Does installed equipment automatically authorize the operation?
No. Many capabilities also require operator approval, current maintenance status, crew qualification and procedures accepted by the relevant authority.