profil aile clark y

L’aile qui semble la plus approprié au vol (meilleure portance) est celle du profil A de type Clark Y et c’est ce que nous avons vérifié grâce à l'expérience du lancer. Profil plat : Clark Y L’Intrados est plat sur sa plus grande longueur ... - Bon profil pour les avions et planeurs d'entraînement (voltige, vol de pente) - Profil type des Warbirds Défaut : - Profil moyennement rapide - Attention au vrillage de l’aile à la construction. The profile was designed in 1922 by Virginius E. Clark. Créer un site gratuit avec e-monsite [5], An inverted Clark Y airfoil was used on the spoilers of the Dodge Charger Daytona and Plymouth Superbird. Applications on model aircraft is very wide, ranging from free-flight gliders through to multi-engined radio control scale models. Details. Je voulais créer une réedition du sempiternel mais toujours efficace Clark Y, qui avec sa facilité de construction (construction à plat) et ses caractéristiques de vol séduit encore beaucoup de modéliste. hereand they will appear in the list of airfoils in the form below. The airfoil has a thickness of 11.7 percent and is flat on the lower surface aft of 30 percent of chord. - Signaler un contenu illicite sur ce site, Quelques news - Profil NM bientot en l'air - Graphen F3F/F3B. Max thickness 11.7% at 28% chord. Dat file. Plot and print the shape of an airfoil (aerofoil) for your specific chord width and transformation. Open paginated plan in new window for multi page printing, Thickness - The dat file Y coordinate is multiplied by the thickness / 100, Reverse - If the reverse tick box is set the Y coordinate is reversed (Y = -Y) to invert the image about the X axis, Origin - The X coordinate is adjusted to move the position of the origin (X = X - (origin / 100) ), Chord width - The X and Y coordinates are multiplied by the chord width to convert the values to millimetres, Radius - If the radius is non zero the X and Y coordinates are transformed around a circle with a centre at X=0 and Y=(radius value). Parser. CLARK Y airfoil. The flat bottom simplifies angle measurements on propellers, and makes for easy construction of wings. The profile was designed in 1922 by Virginius E. Clark. Ce dernier est bien meilleur à ce Re que le NM CLassic et que le Clark Y. Les ailerons sont classiquement à mettre à 30% de la corde pour les deux profils, et le profil NM CLassic Saumon en général trouve très bien sa place à partir du dernier quart ou 1/5e de l'aile. The Clark YH airfoil is similar but with a reflexed (turned up) trailing edge producing a more positive pitching moment reducing the horizontal tail load required to trim an aircraft. dat files are parsed and any parser warnings that appear in the form above. For many applications the Clark Y has been an adequate airfoil section; it gives reasonable overall performance in respect of its lift-to-drag ratio, and has gentle and relatively benign stall characteristics. The tranformations are applied in the following order. Chord width - The X and Y coordinates are multiplied by the chord width to convert the values to millimetres; Radius - If the radius is non zero the X and Y coordinates are transformed around a circle with a centre at X=0 and Y=(radius value) Pitch - The X and Y … The Clark Y has found favor for the construction of model aircraft, thanks to the flight performance that the section offers at medium Reynolds number airflows. Clark Y is the name of a particular airfoil profile, widely used in general purpose aircraft designs, and much studied in aerodynamics over the years. The flat bottom simplifies angle measurements on propellers, and makes for easy construction of wings. But the flat lower surface is not optimal from an aerodynamic perspective, and it is rarely used in modern designs. https://en.wikipedia.org/w/index.php?title=Clark_Y_airfoil&oldid=970319474, Creative Commons Attribution-ShareAlike License, This page was last edited on 30 July 2020, at 16:19. airfoil databaseor your own airfoils which can be entered [4] The Clark Y was chosen as its flat bottom worked well with the design goal of a low radar cross-section. The airfoil has a thickness of 11.7 percent and is flat on the lower surface aft of 30 percent of chord. Esthétiquement le NM Classic à 12% ressemble à ça: Lors d'une comparaison directe avec le Clark Y on observe ces polaires: On peut déduire de ce graphique que le NM Classic pour les Cz > 0.4 est assez similaire au clark Y, par contre en deça (0