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Model aircraft wing slats

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#1 Model aircraft wing slats

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Model aircraft wing slats

Aerodynamics Discuss the physics of flight revolving around the aerodynamics and design of aircraft. Leading edge slats-how to place? Building a Fiesler Storch which has LE slats. I am building a smaller version 6' ws from one set of plans and have also a set of German plans for a much larger version about " ws. The plans show the slats in more or wjng the same location, but with considerable difference in the distance between the slat and the wing LE. The smaller version shows a space of nearly twice the distance than that of Model aircraft wing slats giant scale. The giant scale aiircraft a mm space at the LE s and a trailing edge space of Largest blaack hairy diva. I would assume they would be the reverse, but we all know about assumption! What's the right way to get the most benefit? Send a private message to wsmalley. Find More Posts by wsmalley. We arw flying model aircraft in real size air, you will not get good result. Send a private message to Darryl Usher. Visit Darryl Usher's Modep Find More Posts by Darryl Usher. The smaller gap to the rear is the right way to do it. The slat is supposed to airraft air Pants down productions the leading edge at very Model aircraft wing slats angles of attack and shoot the air into any beginnings of a separation bubble that is the start of a stall condition. To aid that Moedl rear edge is pinched slightly to xlats up the air flowing through the slat gap and encourage it to stick to the wing's upper surface. How well all this works at model Mdoel and speeds is a big unknown. It's higly likely that the zlats and gap should be modified to...

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Slats are aerodynamic surfaces on the leading edge of the wings of fixed-wing aircraft which, when deployed, allow the wing to operate at a higher angle of attack. A higher coefficient of lift is produced as a result of angle of attack and speed, so by deploying slats an aircraft can fly at slower speeds, or take off and land in shorter distances. They are usually used while landing or performing maneuvers which take the aircraft close to the stall , but are usually retracted in normal flight to minimize drag. They decrease stall speed. Slats are one of several high-lift devices used on airliners , such as flap systems running along the trailing edge of the wing. The chord of the slat is typically only a few percent of the wing chord. The slats may extend over the outer third of the wing, or they may cover the entire leading edge. Many early aerodynamicists, including Ludwig Prandtl believed that slats work by inducing a high energy stream to the flow of the main airfoil , thus re-energizing its boundary layer and delaying stall. The actual effects of the slat are: The slat has a counterpart found in the wings of some birds , the alula , a feather or group of feathers which the bird can extend under control of its "thumb". Slats were first developed by Gustav Lachmann in The stall-related crash in August of a Rumpler C aeroplane prompted Lachmann to develop the idea and a small wooden model was built in in Cologne. In Germany in Lachmann presented a patent for leading-edge slats. However, the German patent office at first rejected it as the office did not believe the possibility of postponing the stall by dividing the wing. Independently of Lachmann, Handley Page Ltd in...

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Navigate Blogs Classifieds Places Search. Remember Me Forgot Password? Nov 12, , I'm interested in putting leading edge slats on my 40" Bush plane. It has a EPP foam wing. Any ideas on how to do this? Images View all Images in thread. Last edited by V-Man; Nov 13, at Modern practice is to use a turbulator rather than a fixed slat. Originally Posted by Whiskers. My comment is to the OP. I think what you did is excellent, and your experience is in line with mainstream experience. I'm not seeing a lot of additional lift Slats are used to delay stalling, Their job is to maintain lift and aileron control at high AoA. It's only at high AoA that any benefit would be experienced. Nov 13, , Last edited by JuhaK71; Nov 13, at Slats are used to delay stalling, Their job is to maintain lift and aileron control at high AoA. Last edited by mbpetri; Nov 13, at Yes, slats that can be deployed or that deploy automatically are the best way to employ them. In the s they were very popular. The Tiger Moth has a typical simple automatic system. A single thickness metal slat is attached by parallel links to the outer section of the top wings. In normal flight the slat lays on the top surface LE, held in place by gravity and drag, When the wing approaches a stall, aerodynamic forces cause the slat to rise and move forward on its links and start doing its job,. I should clarify my post too I would like them to be functional also. If I remember right, the ME had them at the inner wing leading edge. They could cause trouble in combat in tight turns trying to stay with a...

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This site uses cookies to deliver our services and to show you relevant ads and job listings. By using our site, you acknowledge that you have read and understand our Cookie Policy , Privacy Policy , and our Terms of Service. If you want it more technical: They both help to generate more lift. See these diagrams with angle of attack and lift coefficient:. As the lift coefficient is inversely proportional to the minimum airspeed, a higher CL will allow a lower Vmin. Slats and flaps both change the shape of the wing when they are extended and allow the wing to generate more lift so that the airplane can fly slower. Operationally they are both retracted and flush against the wing except for takeoff and landing at which time they are extended. Pilots tend to refer to them together because they are used for the same purpose and used at the same time. In fact, they are normally even moved by using the same control typically the slats comes out when selecting first detent, and then the flaps come out progressively further at each detent:. Slats are on the front of the wing on the left in this picture and the flaps on on the back of the wing on the right. As you can see, they both tend to make the wing bigger and more curved when they are extended:. By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service , privacy policy and cookie policy , and that your continued use of the website is subject to these policies. Questions Tags Users Badges Unanswered. What is the difference between flaps and slats? I have heard pilots talk about flaps and slats, seemingly interchangeably. Is there a difference between a flap and...

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The FT Simple Storch gave me a few questions about aerodynamics. We all know that foam board isn't the best source for aerodynamics, but that doesn't mean we can't use it to its full potential. I think the stroch is an awesome example of that. It obviously works, so lets try to understand it. It aslo covers undercamber, standard airfoils, flaps, and a few other interesting options. It doesn't go into detail, but it does show a practicle aerodynamics test. And being that I'm a visual learner, I found it very helpful in seeing whats going on. Now remember, I'm in no way an expert on this. I just had questions and found this helpful. If anyone has input, please don't hesitate to comment. Below, I've copied the text from the notes on the YouTube video. Very informative and useful information. The film was silent. In aeronautics and aeronautical engineering, camber is the asymmetry between the top and the bottom surfaces of an aerofoil. An aerofoil that is not cambered is called a symmetric aerofoil. The benefits of camber, in contrast to symmetric aerofoils, were discovered and first utilized by Sir George Cayley in the early 19th century Overview Camber is usually designed into an aerofoil to increase the maximum lift coefficient. This minimises the stalling speed of aircraft using the aerofoil. Aircraft with wings based on cambered aerofoils usually have lower stalling speeds than similar aircraft with wings based on symmetric aerofoils. An aircraft designer may also reduce the camber of the outboard section of the wings to increase the critical angle of attack stall angle at the wing tips. When the wing approaches the stall angle this will ensure that the wing root stalls before the tip, giving the aircraft resistance to spinning and maintaining aileron effectiveness close...

Model aircraft wing slats

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Apr 5, - The amount of lift generated by a wing depends on the shape of the airfoil, the wing area, and the aircraft velocity. During takeoff and landing. Feb 14, - Slats and flaps both change the shape of the wing when they are extended and allow the wing to generate more lift so that the airplane can fly. Not all aircraft models have significant aerodynamic lift gaps in the leading edge slats. Some have a split design, inboard slats have almost zero gap but the.

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