MTOW (Maximum Takeoff Weight)

Every aircraft is certified at a specific Maximum Takeoff Weight (MTOW) that cannot be exceeded — it's a regulatory limit, not a guideline. The MTOW value sits in the aircraft's Type Certificate Data Sheet, is published on FAA registry records, and is enforced by the operator's weight-and-balance calculation before every flight.

MTOW drives the practical limits on empty-leg passenger and baggage capacity. The aircraft has an empty operating weight (the aircraft itself plus crew, plus required equipment and minimum fuel), so the available payload — passengers plus their luggage plus mission fuel — is whatever's left between empty-operating-weight and MTOW. Long-range trips on heavier-fuel legs reduce passenger and baggage allowance.

For empty-leg buyers this usually only matters when the trip is long or the passenger count is at the upper end of the aircraft's nominal seating. A 7-passenger trip on a Citation CJ3+ (max 8 passengers, MTOW 13,870 lb) with heavy ski-equipment bags inside the operator's full-fuel load can push the weight-and-balance — the operator will either reduce fuel (adding a fuel stop), reduce passenger count, or substitute a larger aircraft.