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Constructing the Wings



Ordered the wing assembly kit, more to follow.

O.k. I know that was short, but it has come time to update things a bit. I received my wing assembly kit after a few weeks waiting, and shelling out 80 bucks for shipping costs. It came in a 90 pound, twelve foot long box. I was suprised, but elated at the same time. I extended the workbench four feet by bolting on a half-sheet of plywood. For a straightedge I used two pieces of aluminum channel.

The wing spars go together really fast. In about three hours I was able to assemble both front spars. It is cold in my shop, and the glue got really thick really fast. To improve on things I mixed it in front of the heater, and it again worked as it should have. TEAM says any temperature suitable for the builder is suitable for the glue. I don't think they figured on people building stuff in a forty degree shop. My little heater is a bit underpowered for the task.

I expected to finish the rear spars after the holidays, but I was able to complete all four spars in about six hours. I cut and fit the parts for the rear spars all at once, and then glued the together. Before the glue could dry, I went ahead and glued the plywood web on one side. The spars look kind of like long thin ladders covered with wood on one side.

After a month or so, I have been able to almost complete one wing. The ribs slid on easily and did not take long to glue up. The biggest problem so far was fitting the compression braces and diagonals. After inventing a few new swear words the task was complete. TEAM neglected to include these swear words in the plans, and since they make assembly so much easier I will be glad to E-mail them to anyone who asks. The wing was swung around and the trailing edge glued on. One irritating problem I created was gluing on the root rib prior to notching it out for the bracket which will hold the wing to the fuselage. I had to drill a line of small holes and notch the rib, but the aluminum fits well now. Gluing the compression braces in the second wing was much easier. Doing it once taught me how. I learned a simple method: Block in the rear spar, so it is forced forward towards the front spar. Cut the brace there approximate size and angle, and slide the rear spar to one side about six inches. Put the brace in place and slide the rear spar back into position. If the fit is too tight, remove the brace and try again. If you try all three braces at the same time, you will know which to sand first, until they all come out the same length. The key is to place the hold down blocks in the right position. When done right they will not try and rotate on you, pushing the spar out of whack. You will just have to experiment, until it comes out right.

The ailerons are easy to complete, and when I finish the inner structure, I expect cutting them loose from the main wing will go rather simple. About four more months And I should be able to begin work on the fuselage. Maybe by Sun-N-Fun 2000 I will be ready to attend in my own aircraft there!
It has indeed been a loooooong time since I edited this file, so I will give a brief synopsis of the rest of the wing construction. The Leading edge ribs are a pain in the tail. Sanding sanding and more sanding to get them all exactly the same size. I really learned to appreciate the usefulness of the dremel tool for this sanding job.

They glue on fast and then came the job of wrapping the skins around. The leading edge skin wraps very easy if some water is squirted on them with a sprayer, and allowed to soak in a bit. Use lots of rubber bands to hold in place, and staple staple staple.



The trailing edge simply cuts away, and after some sanding and fitting, and sanding the spots where the edge sticks, the aileron skins wrap around easier than the other skins.


Then comes lots of paint. Paint, dry, flip wing, paint dry, flip wing, repeat twice more and you're finished. The wing is rather unwieldy, but suprisingly light. It gets easier to flip after the ailerons are cut off. One person can do it. Simply stand in the middle, grab the compression braces, lift up, flip, and CAREFULLY sit it down. I supported the structure by the front and rear spars on small blocks, while upside down. That way the weight of the wing was not sitting on the curved top surface of the ribs, which could crack them. I could then put a lot more pressure on the wing when sanding or painting, without it rocking back and forth on the rib caps. Repeat entire process once as necessary to construct other wing. Oh yeah! Make sure you make one of each, right and left wings. And before you ask, no, I got it right the first time. I hung both wings on the wall to get them out of the way, and then I built the landing gear.