Tuesday, February 1, 2011

Leveling, Leveling, Leveling

Well today was all about preparation. As the title says, we spent most of our time leveling.. and driving all over town. We started out at the cafe as usual and got some breakfast with our friends then made our way to the hangar to see what all we needed to pick up. After that we decided to go to Home Depot to pick up a few things as well as a digital level since all of our levels are a decade old or so and beat up. Once we were at the depot we saw that prices of things have gone up so we decided to go to pay a visit to our friend Rick at trusty Ace Hardware! We picked up some aluminum angle for supporting the rear spar in the wing stand and we got a couple of eye bolts for the tie downs just to see how they fit. It looks awesome! Along with that we got a couple of plumb bobs (which we found later that we really don't need) to do some vertical squaring.
We headed on over to Sears to get the level and found a nice Craftsman for $35, it even beeps and tells the temperature of the room! This thing speaks two types of degrees. What else could you want from a level? After we finished there we headed back to the hangar to put our new tools to use. We found that our spars were about 0.2 degrees off at each end and we got this down to 0.0. We also modified our way of supporting the centers of the spars to keep the droop out. We continued using the hydraulic bottle jacks but decided to just use the screw portion. One of them was losing pressure over night and when we got to the hangar in the morning we found our blocks of wood on the floor. So now we have a longer 4x4 on top of the jack supporting the spars. Between the 4x4 is a 2x4 to spread out the weight more evenly. Our new way is fool proof! After that was set we decided to cut our aluminum angle to make the supports for the rear spar. In the process of cutting them our blade completely dulled and stopped cutting. I made a quick trip to Home Depot and picked up a new one, only to find that I got the wrong one. Well Dad and I went back and got the correct one and were able to get back to work. New blades cut so much nicer! We got our supports cut and mounted them to our wing stand in their proper place. After that we decided we should call it a day.
Productive day, just not as productive as we planned.
Update: We found a few builders have stressed about getting the 1/2" of twist or so out of the wing before putting the skins on but read that this is unnecessary. Clecoing the (pre-drilled) skins to the skeleton is supposed to pull it all square and not require manually taking the twist out. We'll see how this goes on Thursday and see if we do or do not need the plumb bobs.

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