What is the best way to decrease drag and increase fuel economy in aircraft?

Friday, October 31, 2014

October Additional Blog Post

This month for my senior project I have begun to work on my independent component and began the search for a new mentor. 

     For my independent component, I began researching different types of airfoils I could choose for the design of the craft. An airfoil is the shape of the wing from the side of it and has a huge impact on the lift and aerodynamics of the wings.(Example of the schematic of one shown below)     I encountered many different varieties to choose from, all of which had different affects on the planes turning, or roll. Since I did not want to get fancy, I decided on an airfoil known as NACA(National Advisory Committee for Aerodynamics) 0015. The NACA airfoils are followed by 4 numbers. The first two decide whether or not there is any camber on the airfoil, like the one above. To make it easier and simpler on myself, I chose one without camber. Camber, by the way, is the symmetry between the top and bottom half of the airfoil. Since NACA 0015 has none, it is considered symmetrical. After second pair of numbers determines the width of the airfoil at the thickest point. Since the number is 15, that means at the max point, the airfoil is 15% of the chord length thick. (NACA 0015 Pictured below)

     I decided on NACA 0015 because it was a simple one to construct and provided nothing special, but would allow the craft a fair amount of maneuverability. After deciding on this, I now must determine how long I want or need my chord length so I can begin to construct the most basic airfoil and continue from there.

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