Term

MTOW

Daniel MarkFounder & Editor, Aviatopia
Published Mar 1, 2026Updated Mar 1, 20261 min read

Maximum Takeoff Weight — the highest weight at which an aircraft is certified to begin its takeoff roll, limited by structural, performance, and regulatory constraints.

aviation-glossary

Quick Facts

Type
Weight Limitation
Also Known As
MTOW
Used By
Pilots, Dispatchers

Definition#

MTOW (Maximum Takeoff Weight) is the maximum allowable total weight of an aircraft at the start of the takeoff roll, as specified in the type certificate. It accounts for structural limits, engine performance, and certification requirements.

Why It Matters Operationally#

MTOW limits payload and fuel on every flight. Hot-and-high conditions, short runways, or obstacle-rich departure paths may require taking off below MTOW, reducing payload or fuel.

See Also

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