ORIGINAL: RCKen

In my last post I described setting the ribs by using a ruler to measure the distance between the notches on the Trailing Edge (TE), and marking that same distance on the 2 spars. Now we'll talk about the easier way of doing, and that is using the shear webbing to space our ribs. Even though I showed both ways of placing your ribs, this is probably the best way of doing this. This is because you want a tight fit of your shear webbing between each rib. Even when doing very accurate measuring it's possible to be just a bit off when marking. We're all human, so it's possible to be a bit off. By using the shear webbing to place the ribs we can ensure a tight fit between the ribs because we will be gluing the ribs in place by butting them against the shear web. We should have the first W5 rib in place so far. Before we start placing the remaining ribs, let's take a few minutes to catch up and place the shear webbing between the ribs that we have in place already. On the main spar we are going to place a SW-2 shear web between ribs W3 and W4, and on the rear spar a SW-3 shear web will be places. Apply glue to the sides and the bottom of the shear web and put it in place between the ribs.

Ken