Eagler's Nest
Airframes => Single Seaters => LE => Topic started by: tonyp51qa on February 08, 2024, 05:49:00 AM
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I'm building a wing support jig for my Legal Eagle.It's a wood support jig that will be placed under the wing in the wing tip area. This will support the wing so that I can attach my wing by myself. This will help set up Dihedral. QUESTION: What is the distance from the floor to the under side of a Legal Eagle wing. Knowing this will be an average measurement, so I'm making my wing support fully adjustable.
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I think we need to know more information. Are you designing your jig assuming the tail wheel is on the ground, up on a support so the top tail longeron is level, or the wing support tube is level? The last option will make the bottom surface of the wing level at least at the root but if you have added washout then not at the tip. Given the geometry of the main landing gear the fuselage angle will have an impact on the height of the wing support tube. Assuming you prop up the tail so the rear top longeron is level and if you built per plans then you should be able to figure this out yourself. For the LEU plans sheet 13 gives the height from the ground to the center of the bottom longerons at station 2. Sheet 8 gives the height of the front of the wing support tube above the bottom longerons and the height of the wing fitting above the wing support tube. Sheet 22 gives the height from the wing root fittings to the bottom of the front spar which is about the bottom of the wing. By my math about 63.5" at the root, plus dihedral and washout. A similar exercise can be for the XL.
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I just leveled the fuselage and used this tool in my photo here: (https://www.eaglersnest.com/forum/Themes/default/images/icons/clip.gif) IMG_5002.jpg (https://www.eaglersnest.com/forum/index.php?action=dlattach;ts=1451864408;topic=1091.0;attach=1734) (131.83 kB, 1024x768 - viewed 705 times.)(https://www.eaglersnest.com/forum/Themes/default/images/icons/clip.gif) IMG_5004.jpg (https://www.eaglersnest.com/forum/index.php?action=dlattach;ts=1451864409;topic=1091.0;attach=1738) (115.54 kB, 1024x768 - viewed 618 times.(https://www.eaglersnest.com/forum/Themes/default/images/icons/clip.gif) IMG_5009.jpg (https://www.eaglersnest.com/forum/index.php?action=dlattach;ts=1451864409;topic=1091.0;attach=1740) (132.88 kB, 1024x768 - viewed 742 times.) Attach the wing root to fuse, lift the wing to a level position, support with jig, add struts (don't forget wash-out)