![]() ![]() It is the reliance on a second manner of lift, "reaction lift". However, these sleek shapes also necessarily have less Bernoulli lift effect, due to standard physics and aerodynamic reasons.Īnother trend in modern aviation is due to the enormous power now available in aircraft engines. Until now, very sleek airfoil shapes and relatively thin wings have been the standard ways of trying to minimize this turbulence effect. ![]() In many situations regarding Bernoulli Lift, around 6/7 of the total drag is due to this turbulence, with only 1/7 actually being unavoidable. Much of the drag that exists that is associated with airfoils (wings) is due to turbulence that develops along the top of airfoil and behind the airfoil surface. The forward thrust also enables aerodynamic lift to occur, which balances the weight of the aircraft. Powered aircraft must produce forward "thrust" to overcome rearward "drag" and then also be able to accelerate forward. The result would be extremely efficient flight, using far less than half as much aviation fuel to accomplish the same performance, and possibly less than one-fourth as much fuel consumption, without otherwise changing performance. There appears to be a method, TURCAN, to meta-stably eliminate most of that turbulence, and therefore most of the drag which must be overcome. This fact is closely related to the fact that virtually all aircraft are designed to use BOTH of two very different methods of creating Lift, called Bernoulli Lift and Reaction Lift, and the Reaction Lift is notoriously bad regarding creating massive turbulence and loss. Interesting, since they never showed any interest in THIS TURCAN technology which would CERTAINLY improve efficiency by 50% and probably 100% or more!įor the hundred years of powered flight, it has always been accepted that very large amounts of drag from air turbulence was unavoidable. Instead of an airline having to buy $120,000 of jet fuel for a specific trip, maybe only $60,000 would need to be bought! Then, with the gross airframe weight being 150,000 pounds less at takeoff (due to not needing to load those thousands of extra gallons of Jet Fuel) the overall efficiency would be even greater than that!īelow, reference is made to the US government spending millions of dollars to try to improve overall efficiency by 1.5%, several years ago. ![]() More practically, this new TURCAN technology should be able to reduce total aircraft drag to about half of current levels. Theoretically, total aerodynamic drag might be reduced to 1/7 current drag factors, meaning that fuel would then last around 7 times as long or as far! An aircraft flying at 500 mph has around 400 times more aerodynamic (drag) energy losses than if the same size-and-shape glider was flying at 25 mph.Īn Active Skin technology has been invented, TURCAN, where the vast majority of turbulence is eliminated. Gliders are only excepted because they fly so slow that better airflow patterns exist, where less turbulence occurs, and that the effects of turbulence regarding energy goes as the second power of airspeed. Repetitive MetaStable Cancellation of Turbulenceįlow in large Pipelines can also be improvedĪll aircraft except gliders have enormous turbulence losses during flight. Multi-page print.Greatly Reduced Turbulence and Drag of Aircraft Plot a mirror image about horizontal axis 200% is doubleĪdjust the position of the origin e.g. Thickness adjustment.100% is normal thickness. Radius of camber in millimetres, Zero for no curve Any missing or invalid data will be ignored so check the information was entered correctly. Paste in the dat file data from the University of Illinois database or use the form below to preview and get the files. Large plots can be printed over multiple pages.Ĭhoose from list or select "Enter coordinates" The full size airfoil plot can be opened on a blank page for printing.The origin can be moved to any position within the airfoil from 0 to 100%.The airfoil may optionally be plotted around the circumference of a circle, for example to match the radius of the vertical axis wind turbine or to change the camber.The airfoil thickness can be adjusted by altering the percentage thickness.The links at the bottom of the page give some other sources of airfoil coordinates.The form at the bottom of the page can be used to retrieve the data and preview the airfoil shape. The data in the ".dat" files on this site can be pasted into the coordinates window for plotting. There is a much larger range of airfoil coordinates available on the University of Illinois airfoil coordinates database. A number of airfoil section can be selected from the drop down menu.Plot and print the shape of an airfoil (aerofoil) for your specific chord width. ![]()
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