A Blended Winglet was test flown on a Boeing 747-200 in 2000 to prove the viability of Blended Winglets for large transport aircraft. These gracefully curved wingtip extensions measurably enhance aerodynamic efficiency, flight characteristics, and environmental benefits for corporate and commercial aircraft. Aviation Partners of Seattle introduced the patented Blended Winglets in 1991, and they now fly on airliners and corporate jets worldwide, saving fuel and helping protect the environment.