Application of Leading Edge Slots
Leading edge slots are generally of two types: those that are full-span and those that are partial-span.
Full-span slots are generally found on Short Take-off and Landing STOL aircraft like the Fieseler Storch, Dornier Do 27, PZL-104M Wilga 2000, and Zenair CH 701 STOL. Their primary purpose is to allow the aircraft to fly at a higher angle of attack before reaching the stalling angle.
In aircraft other than specialist STOL aircraft, full-span slots have serious drawbacks because, to take advantage of the high angle of attack at the stall, they usually necessitate long undercarriage legs that either cause high drag or are longer than can be accommodated easily inside the airframe.
Partial-span slots are usually found only on the outboard portion of the wing where they ensure airflow over that portion of the wing will remain unstalled at higher angles of attack than the inboard portions of the wing. This ensures the wing root stalls first and contributes to docile stall behaviour and maintaining aileron control throughout the stall. Using slots in this manner produces a similar result to employing washout on a wing, but through a different means. Examples of aircraft with partial-span, fixed slots are the Stinson 108, Bristol Beaufort, and Dornier Do 28D-2 Skyservant.
Read more about this topic: Leading Edge Slot
Famous quotes containing the words application of, application, leading and/or edge:
“We will not be imposed upon by this vast application of forces. We believe that most things will have to be accomplished still by the application called Industry. We are rather pleased, after all, to consider the small private, but both constant and accumulated, force which stands behind every spade in the field. This it is that makes the valleys shine, and the deserts really bloom.”
—Henry David Thoreau (1817–1862)
“If you would be a favourite of your king, address yourself to his weaknesses. An application to his reason will seldom prove very successful.”
—Philip Dormer Stanhope, 4th Earl Chesterfield (1694–1773)
“Our leading men are not of much account and never have been, but the average of the people is immense, beyond all history. Sometimes I think in all departments, literature and art included, that will be the way our superiority will exhibit itself. We will not have great individuals or great leaders, but a great average bulk, unprecedentedly great.”
—Walt Whitman (1819–1892)
“Dragging out life to the last possible second is not living to the best effect. The nearer the bone, the sweeter the meat. The best of life, Passworthy, lies nearest to the edge of death.”
—H.G. (Herbert George)