A bat has wings and can fly – for every gram of the bat, there is 5 cm 2 of wing area. If an elephant (which has a large heart and strong muscles) had wings, could it fly? It couldn’t fly, because it’s too heavy. Two ways in which wing size and shape can be described are through wing aspect ratio and wing loading. Although it has a huge wing load, it can fly because of its incredible speed.ĭifferent wing shapes and sizes correspond to different flight capabilities. On the heavy side, a Boeing 747 has a maximum wing loading of about 730 kg/m 2. A typical hang-glider may have a maximum wing loading of 6.3 kg/m 2. The wing loadings of some of the lightest planes fall within the bird range. This is when the bird is too heavy for its wings (like the kiwi, which has tiny wings and a large body mass). Twing lohe maximum possible wing load before a bird is unable to fly is about 25 kg/m 2. Wing loading for birds is generally between 1 to 20 kg/m 2. Therefore, a plane with lower wing loading will be able to take off and land at a lower speed (or be able to take off with a greater load). Larger wings move more air, so a bird or plane with a large wing area relative to its mass (low wing loading) will have more lift at any given speed. The wingspan of the airplane is entered in imperial (inches) units.ĭISCLAIMER: Please use this airplane design calculator for informational purposes only.Wings generate lift due to the flow of air over the wing surface. Next, enter the wingspan of the airplane you plan to design and make. To use the calculator simply select the type of airframe that you are building. Using the RC Airplane Design CalculatorĮach calculated parameter can be reviewed in the image below to better understand where the dimensions are measured from. This requires the main airplane wing to be rectangular in shape when viewed from above and as pictured below. This airplane design calculator assumes that the shape of the wing is of a constant cross sectional area. Building with foam board allows a lightweight, inexpensive and easy to build airplane. The recommended build material when using the design parameters for the RC airplane design calculator is foam board. Recommended Build Specifics – RC Airplane Design Calculator Use this airplane design calculator to help you determine key airframe dimensions along with an approximate target weight and power for your radio control aircraft. The RC airplane design calculator has been created in order to provide an approximation of specific airframe parameters.
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