The fourth test 787 Dreamliner has joined Boeing's fleet of test aircraft after it left the ground for the first time Sunday morning from Everett's Paine Field.
The test aircraft took off for the first time at 10:55 a.m. It landed a little more than three hours later at Seattle’s Boeing Field.
The fourth test aircraft will be devoted primarily to testing passenger amenities and cargo spaces. It’s the only one of the first four aircraft to be outfitted with a passenger interior. The other three aircraft are fitted with engineering test stations.
The plane is the last of the Rolls Royce-powered aircraft. The last two of six test aircraft will be propelled by General Electric jet engines.
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The fourth test plane will be involved in testing seating, entertainment systems, lavatories and galleys, among other items. It will be used on long, overwater proving flights to test the 787’s mettle in airline use.
The testing of the 787 is due to conclude this fall with delivery of the first production aircraft to All Nippon Airways .