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Boeing received approval from the Federal Aviation Administration for its new increased maximum takeoff weight (iMTOW) variants of the 787-9 and 787-10 long-haul widebodies, the company said on March 23.
The approval from the U.S. aviation regulator is the first significant certification granted to the plane maker since March 2021 when the FAA signed off on the 737 Max 8200, a high-density version of the 737-8 with a new mid-exit door.
iMTOW is Boeing’s marketing name for what was previously dubbed the 787IGW (Increased Gross Weight). In October, Boeing formally published a revision to its closely-watched airport planning documents that included the new iMTOW specifications. The newly certified weights include a 10,000-lb increase for the 787-9 to 571,500 lbs (259.2 metric tons) and a 14,000-lb increase for the 787-10 to 574,000 lbs (260.3 metric tons). Boeing said that translates into around three metric tons of added payload or 310 nautical miles of additional range for the 787-9 and around five metric tons more payload or 430 nautical miles more range for the 787-10.
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