Meet a A brand new Boeing 747-8. Cargolux Airlines' freighter performing a crazy wings swing-bye during take-off on its delivery flight from Paine field airport. Mostly all big heavies that get delivered from PAE do the 'wing wave' as a thankful gesture during delivery flight to their destination airbase but, they do so only when they have climbed to almost 2000 ft or higher and attained a sufficient speed. The 'wing wave' is mostly done to say goodbye as the airplane will never see the home airport again (where it was made).