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ATOG – Allowable Takeoff Gross Weight – Maximum Aircraft Weights

ATOG - Allowable Takeoff Gross Weight ATOG – Allowable Takeoff Gross Weight is the weight that’s limited by takeoff, enroute, landing or structural weight, whichever is more restrictive.

Various other Aircraft Maximum Weights:

  • Maximum Weight – The maximum authorized (structural) weight of the aircraft and its equipment & contents This weight is specified in the  Type Certificate Data sheet or the Aircraft Specifications. The ATOG is always less than or equal to this weight.
  • Maximum Taxi Weight / Ramp Weight—the heaviest weight to which an aircraft can be loaded while it is sitting  and or taxing on the ground. This weight would include fuel weight that would be burned prior to takeoff by the engines or APU during start, taxi and runup. This weight may exceed the ATOG
  • Maximum Takeoff Weight—The heaviest weight an aircraft can have when it starts the takeoff roll. The difference between this weight and the maximum ramp weight would equal the weight of the fuel that would be consumed prior to takeoff. The ATOG is always less than or equal to this weight.
  • Maximum Landing Weight—The Maximum weight an aircraft can have when it touchdowns / lands. For large wide body commercial airplanes, it can be 100,000 lb less than maximum takeoff weight, or even more.
    Maximum Zero Fuel Weight—The heaviest authorized weight an aircraft can be loaded to without having any usable fuel in the fuel tanks. Any weight loaded above this value must be in the form of fuel.
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