Aviation Partners

API was founded in 1991 by Joe Clark and Dennis Washington, bringing together a team consisting primarily of retired Boeing and Lockheed engineers and flight test department directors.

[1] Washington, a US entrepreneur who made his money from copper mining, was frustrated that his private jet could not fly coast-to-coast in the US without refueling.

Instead of buying a new aircraft, he approached his friend Joe Clark who had experience in the aviation industry having co-founded Horizon Air.

In December 2011, Airbus filed suit in Texas seeking to invalidate Aviation Partners' 1994 winglet patent.

[8] FAA granted supplemental type certification (STC) for the Split Scimitar Winglet (SSW) retrofit on the 737-800 and BBJ2 on February 6, 2014, for 737-900ER on August 27, 2014, for 3 additional 737-800 wing configuration on October 2, 2014, and for all models of the 737-700 including the Boeing Business Jet on April 21, 2015.

APB also expects to certify an improvement in low speed performance that will generate significant take-off benefits from high/hot or obstacle limited runways.

[10] The first European Split Scimitar Winglets were installed on the TUI fleet aircraft in Stansted in 2014 by Chevron Technical Services Ltd.

Hawker 800SP with API winglets
An API blended winglet on a Boeing 737-800
The Split Scimitar design as seen at Denver International Airport on a Boeing 737 of Southwest Airlines.