Mystery 737 Winglet Test

EcoDemonstrator flies by Mt Ranier (Boeing/John Parker) Boeing’s 737 EcoDemonstrator was quietly delivered to its owner American Airlines on Nov 20, marking the formal end of its short but successful career as a flying testbed for far-reaching technologies that may not be seen in service for years to come. Now simply 737-823 N897NN, the aircraft has already blended anonymously into American’s...