These winglets reduce the drag caused by wingtip vortices
, thereby increasing fuel efficiency and boosting range.
It was applied to civilian aircraft by Met-Co Aire and is designed to reduce the strength of wingtip vortices
generated by high-pressure air under the wing moving outboard over the wingtip.
The Winglets reduce the drag caused by wingtip vortices
, the twin tornados formed by the difference between the pressure on the upper surface of an airplane's wing and that on the lower surface.
Thus, wingtip vortices
are most intense during the takeoff, climb and landing phases of flight.
With flaps deployed, the air flowing off of the wing is more turbulent, causing the wingtip vortices
(wake turbulence) to dissipate faster.
As part of the ACEE effort, Langley Research Center aeronautical engineer Richard Whitcomb conducted computer and wind tunnel tests to explore his hypothesis that a precisely designed, vertical wingtip deviceNwhich Whitcomb called a OwingletONcould weaken wingtip vortices
and thus diminish induced drag.
It wasn't a KC-135 Iron Maiden or a wingtip-podded KC-130 complete with the associated wingtip vortices
API's Blended Winglets are an addition to the aircraft wing tip which is designed to efficiently add effective wingspan, reduce the drag caused by wingtip vortices
to increase fuel efficiency and boost range.
By altering the airflow as it Leaves the wingtip, the extensions reduce wingtip vortices
and induced drag.
trailing a commercial jet can stretch up to 12.
The narrow sweep reduces air friction across the wing surface, while the tapered wingtips eliminate wingtip vortices
that begin at higher speeds.
The BOL system uses wingtip vortices
to distribute the chaff- and IR payload, which greatly improves dispersion and the rapid formation of a protective cloud, while avoiding the need for pyrotechnics and making it quicker, easier and safer to load the system.