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Tout : Wings : Skeleton |
15-Sep-2006
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Assembly and drilling of right wing skins. Working time on this subpart Today : 2h (Total : 24h) |
Lectures (2705)
11-Sep-2006
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Lectures (2644)
09-Sep-2006
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The two assemblies are now clamped to the jig. First I had to make the center support to avoid the 1/2 inch sag of the assembly. To verify that the par is not sagging anymore, you just put a fishning line through the outermost holes of the spar and verify that the line is in the middle of all the holes. The the twist of the wing is verified with two plumb bobs tied to the main spar and then measuring the distance between the string and the rear spar. Once the distance is the same inboard and outboard, the rear spar is clamped down. And here all is clamped down. Then I verified the assembly was horizontal in all directions. Those electronic tools being very precise are sometimes a real pain, the difference between 0° and 0,1° being sometimes impossible to make out by the naked eye. And to finish a fit test of the leading edge and the skins, for the time being all seems to fall into position. Working time on this subpart Today : 3h (Total : 20h) |
Lectures (2714)
08-Sep-2006
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Left wing assembly. It tool less time than yesterday. First because it's easier if you use the right rivet length, yestarday I made some mistake reading the rivet layout (despite checking a few times). Then I had no rivet to drill out from the main spar. Then I riveted the rears spar. I changed the rivet head position, putting the head on the rib flange instead of the spar. It's the way Van's tells you to do it, it prevents the small distorsion f the flange I sometimes got yesterday, but it's less nice and it makes drilling out a bad rivet a real pain. Then I bucked again two or three rivets on the right wing, and put both wings on the stand. I still have to square everything. To finish I had to put one of the leading edges on the spar. Working time on this subpart Today : 6h (Total : 17h) |
Lectures (2978)
07-Sep-2006
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Right wing skeleton assembly. The ribs are first riveted to the main spar working outboard to inboard. Working solo makes some rivets difficult to set. For the most outboard ribs the rivets seem a bit long and have a tendency to tip over, for the left wing I'll cut them a bit shorter. When all the ribs are done, the left spar is riveted by squeezing, you just have to pay attention to the rivet call-out and location. At the end of the day, turning over the skeleton showed a few rivets I'll have to buck a bit more tommorrow. Working time on this subpart Today : 6h (Total : 11h) |
Lectures (2790)