RE: B-36 build thread and free plans
Since I was waiting for the retracts to return, I needed to work on something else. I need to finish up the trailing edge of the wing before I work on the motor mounts (remember this is a pusher). I have also wanted to start fitting the wing to the fuselage. I have known for some time that I wasn't happy with the way I designed the wing mount. But before I could try fitting the wing to the fuselage, I needed to have the trailing edge built up in the root area of the wing.
I looked at the little pieces that I had cutout for the trailing edge at the root rib area and as you guessed it, I changed how I wanted to do it. I knew that I was changing the wing mount but I didn't know how much strength this area would need to have when I finally figured out the wing mount. So I pulled out a block of very light balsa, cut it to a very approximate shape and adhered it to the trailing edge of a wing half.
Working on the top side of the wing I started shaping the solid piece of the trailing edge. When you build a kitted plane, all of the parts are cut out for you so there usually isn't much shaping required. When I got to the trailing edge of the wing I realized that I needed a guide to help me get it right. So I opened up the CAD drawings and created drawings that showed the cross section of the wing at certain locations. I will add these to the design files. I used the drawings to create templates.
I found that the shape of the bottom side of the wing would be easy to create if the bottom side of the wing were sheeted. I can't sheet the bottom side of the wing just yet because I still have a fair amount of work to do inside the wing. My solution was to sheet the first 3 ribs. The second photo show the bottom side of the wing with the open ribs. You can imagine that getting the shape of the trailing edge without the sheeting would be very difficult. I need this trailing edge to be complete so that I can work on the wing mount area.
The first photo shows some of the templates that I made.
The notebook in the background of the second photo is the collection of part drawings for this plane. They make good reference.
Mike