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Maximum Design Taxi Weight (MTW) 225,900 KG 498,000 LBS
This is the maximum weight for ground maneuvers as limited by aircraft strength and airworthiness requirements. The weight of taxi and engine run-up fuel is included.
Maximum Design Takeoff Weight (MTOW) 225,000 KG 496,000 LBS
This weight must not be exceeded at the start of takeoff run. Any weight in excess of MTOW must be consumed during taxi and/or ground maneuvers.
Maximum Design Landing Weight (MLW) 116,900 KG 368,000 LBS
The maximum weight at which the aircraft may land without exceeding its structural limitations. Prior to landing, any weight in excess of MLW must be in the expendable fuel.
Maximum Design Zero Fuel Weight (MZFW) 153,300 KG 388,00 LBS
The maximum weight of the aircraft before expandable fuel is added. It is also the maximum sum of operational empty weight and payload.
I assume these are numbers regarding the dash 500. Some of them began with 504,000 lbs of mtow but the majority (if not all, after a certain period) had 510,000 lbs mtow.
ReplyDeleteFrom our manual:
http://i893.photobucket.com/albums/ac139/LisbonJet/lim.jpg
Great observation! Yes, the numbers are for a -500. Thank you for pointing that out.
ReplyDeleteAnd the some of the first -500s were delivered without the increased wingspan and Active Control System. This gave the initial value of 496,000 lbs mtow. However they were retrofitted later with both extendend wingtips and ACS. RAF's L-1011s have the highest figure (540,000 lbs mtow).
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