In aviation, the Maximum Take-Off Weight (or MTOW) is the maximum weight with which an aircraft can achieve flight. MTOW is affected by the design of the airframe, engine type and power, drive type (e.g. fixed propellor vs. turbofan), and air density. MTOW calculations are all-inclusive, representing the sum of the weights of the airframe, fuel, cargo, and personnel.
However, real world conditions often differ from the ISA. Air density is dependent on the altitude of the runway, barometric pressure, and air temperature. Increases in runway altitude, decreases in barometric pressure, and increases in air temperature each cause a decrease in an aircraft's effective MTOW for the conditions.
In aviation, the Maximum Take-Off Weight (or MTOW) is the maximumweight with which an aircraft is allowed to try to achieve flight.
It is one of the three "limiting design weights" with regards to aircraft performance, the others being the Maximum Zero-Fuel Weight and the Maximum Landing Weight.
MTOW calculations are all-inclusive, representing the sum of the weights of the airframe, fuel, cargo, and personnel.
The climb limit is the maximumweight at a particular altitude and temperature, at which the aircraft can meet the FAR part 25 climb gradient requirements for takeoff (First, second, third and fourth) or for landing (Approach and balked landing climb).
The runway limit is the maximumweight at which the aircraft may takeoff from, in the case of the takeoffweight limit, or land on, the case of the landing weight limit, on a given runway at a specified temperature, altitude, and runway condition.
The maximum speed from which the aircraft may be stopped in the case of a rejected takeoff, (expressed in KIAS), or the maximumweight at which the aircraft may be landed and stopped with brakes without exceeding the capability of the brakes to dissipate the resulting heat without damage.
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