![]() 180/5 = 36 square inches of horizontal stabilizer area. 6x30 = 180 square inches of main wing area. Using the basic rule to find the dimensions of the main wing as shown in step 1, lets use the example of a main wing with dimensions 6x30. The area of the horizontal stabilizer should be a fifth of the area of the main wing. Draw the cutout pattern as shown in photo 1, and cut it out as directed in the intro. The dimensions of the horizontal stabilizer are 2 inches by 8 inches. If you want to use a different material, I suggest to use styrofoam of the same thickness.Īfter making the wing, always mark the center and draw a line down it to make it easy to position for mounting. For a very good technique when drawing the dimensions if you are using cardboard as your material, look at photo 3. ![]() So, for a basic rule, the chord size should be a fifth of the size of the wing span (1x5,2x10,3x15 etc.), as mine is, because you will end up with easy, even measurements for dimensions of the other parts. Of course, for example, a plane with a square wing would take a longer fuselage and be more complicated to build and balance. Because the main wing determines the size of the other parts, once again, I STRONGLY recommend that the dimensions that you choose for the chord and the wingspan are EVEN numbers. Don't worry if this sounds complicated, I will display the calculations for explanation. If you are making your own plane, the size of the other parts, the vertical/horizontal stabilizers and fuselage, are always determined by the ratios that are based upon the size of the chord and area of the main wing. Mark the dimensions, as shown in photos 1 and 2. The dimensions of the main wing are 4 inches (the wing chord) by 20 inches. All dimensions I give are measured in inches. As I said before, be very careful when cutting, you don't want to bend the cardboard, this weakens it immensely, and you end up with a floppy piece of junk.įor the two important terms that you will need to know when building this glider or your own, refer to photos 4 and 5. For the right cutting technique, refer to photo 3.Ĭut the first two layers of the cardboard, then bend open the cut and slice through the last layer. knives tend to be sharper than scissors and their thin blades can cut clean edges, are easier to handle than scissors, and are more accurate, which makes all the difference in factors of flight such as drag, wing area, and weight. scissors can be bulky and use leverage to cut, which may cause a risk of bending the cardboard, resulting in a floppy, almost useless wing or fuselage, that fixing will only add weight which is the last thing you want when building these hand gliders. I strongly recommend that you use a sharp knife, such as an exacto, to cut out all parts of this plane or any other you may build for the following reasons: However, if you want to make this plane, but you don't have enough cardboard (you need a piece with a total area of about 375 inches squared, with the minimum dimensions of 25x15, so you have enough room), if you have enough styrofoam of the same thickness, use that. I chose cardboard to build this plane because it is cheap and readily available, and i had plenty around. If you want to build a plane of your own size, follow all explanations in regular font and some of the pictures (as directed) in the following steps. If you just want to make the plane: Just look at the pictures and all explanations in BOLD font in the following steps. ![]() If you have any questions, about the ratios, or the building of the plane featured here, or your own, (or whatever else you can think of, as long as it has to do with hand gliders) feel free to leave them in the comments and I'll get to them as soon as I can.įor this instructable you will need the following items and materials: (look at photo 2) You will also need a protractor for step 6. Height (including vertical stabilizer): 7 inches (18 centimeters)īut, with the ratios I will give you, you can make whatever size glider you like (within an acceptable hand-throwing range of size). ![]() In this instructable, I will not only show you how to make a hand-thrown glider of these proportions:
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