Boeing Co. will offer a tanker version of its 777 plane as it seeks to beat Northrop Grumman Corp. in a rematch of the U.S. aerial-refueling competition.

The company plans to pitch tankers based on both the 777 and smaller 767 to the Pentagon when the contest begins in a few weeks, Jim Albaugh, its defense chief, said today in a briefing at the Paris Air Show. The larger aircraft would offer maximum fuel capacity and the 767’s selling point is its flexibility, he said.

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