The first production model of the new Boeing 787 Dreamliner airplane is unveiled to an audience of several thousand employees, airline executives, and dignitaries during a ceremony at Boeing's assembly plant in Everett, Wash. The jumbo jet is promised to burn less fuel, be cheaper to maintain and offer more passenger comforts than comparable planes flying today.

Everett, Wash. ? Boeing Co. raised the curtain on its first fully assembled 787 on Sunday to an audience of thousands who packed into its widebody assembly plant for the plane’s extravagantly orchestrated premiere.

With flight attendants onstage from each airline that has ordered the jet, the giant factory doors opened wide as the plane slowly moved into view to the strains of a theme song composed specially for the 787, which Boeing calls the Dreamliner.

“Our journey began some six years ago when we knew we were on the cusp of delivering valuable new technologies that would make an economic difference to our airline customers,” Mike Bair, vice president and general manager of the 787 program, told the crowd.

“In our business, that happens every 15 years or so, so you’ve got to get it right.”

Boeing Chief Executive Jim McNerney said the 787 will bring about a “dramatic improvement in air travel: to make it more affordable, comfortable and convenient for passengers, more efficient and profitable for airlines, and more environmentally progressive for our Earth.”

Boeing has won more than 600 orders from customers eager to hold the jet maker to its promise that the midsize, long-haul jet will burn less fuel, be cheaper to maintain and offer more passenger comforts than comparable planes flying today.

The 787, Boeing’s first all-new jet since airlines started flying the 777 in 1995, will be the world’s first large commercial airplane made mostly of carbon-fiber composites, which are lighter, more durable and less prone to corrosion than aluminum.

To date, Boeing has won 677 orders for the 787, selling out delivery positions through 2015, two years after Airbus SAS expects to roll out its competing A350 XWB. Thirty-five of those orders came Saturday, with Air Berlin ordering 25 and a Kuwaiti company taking 10 for Kuwait Airways.

In a rare tip of the hat to the competition, Airbus congratulated Boeing on the 787, whose commercial success has chipped away at the edge the European plane maker once held over its Chicago-based rival.

“Even if tomorrow Airbus will get back to the business of competing vigorously, today is Boeing’s day – a day to celebrate the 787,” Airbus co-CEO Louis Gallois said in a letter to McNerney.

“Today is a great day in aviation history. Whenever such a milestone is reached in our industry it is always a reflection of hard work by dedicated people inspired by the wonder of flight,” the letter said.

Boeing hired former NBC “Nightly News” anchor Tom Brokaw to serve as master of ceremonies for the 787 premiere – held, probably not coincidentally, on 7-08-07 – which was broadcast live on the Internet and on satellite television in nine languages to more than 45 countries.