Boeing’s new, expanded widebody jet-delivery center at Everett’s Paine Field officially opened Wednesday, marked by Gov. Jay Inslee and other officials, as well as musicians representing customer nations.

Airlines and private buyers will come to the delivery center to pick up their 747s, 767s, 777s and 787s.

Diners in the first-floor cafeteria will look out at aircraft to be delivered. An ANA 787 can be seen framed in the windows.

Seattle-based DLR Group created a curved architecture that allows airplanes to pull up to the building and connect by airport-style boarding bridges.

The facility, three times the size of the one it replaces, includes a customer lounge, more than 20 conference rooms, four contract-signing rooms and 35 offices for use by customers and on-site delivery teams.

An upstairs area for customer ceremonies offers sweeping views of the Olympic Mountains.

Boeing also flew a 787 test flight out of Paine Field on Wednesday, testing upgrades to the electric power-panel engineering.

Another test flight is expected within days for certification of Boeing’s battery system fix.

Dominic Gates: (206) 464-2963 or dgates@seattletimes.com