A little progress on the Behemoth Stang right wing panel this afternoon. One would think that it should not take long to glue a few sticks of balsa together right? Not so.... I pretty much spent four and a half hours this afternoon laying in one hardwood spar, placing one 3" sheet of balsa sheeting and the leading edge to both the center section and outer right wing section. Really nothing difficult. Just taking my time and making sure it is perfect. I am at a very crucial point with the construction of the wings. With the left wing basically framed and sheeted on the top, the 2 degrees washout at the tip is set and the overall structure is rigid and non movable. By this I mean, there is no sway or movement within the wing structure. I can still get some twist out of it, but mostly because the bottom construction and sheeting are not yet in place. Not really important at this point. Once the bottom construction is complete, the wing should be Sherman tank strong. More importantly is getting the exact correct 85 degrees of dihedral angle of the right wing section in relation to the left wing section. This is achieved with the center dihedral brace that glues to the aft side of the main spars. The thought process is once one or the other wing sections is built, it is then lifted off the build table and set at the correct angle with the dihedral brace in place then start placing ribs, spars and other structure components. In a perfect world, this should be easy. Ah but therein lies the clinker amongst the glowing embers. My build table is just...wait for it...wait for it.... NOT LONG ENOUGH. Doah!! that is one massive wing fellas. So to apply a little work around, I will simply remove the right outer wing section and simply move the remaining center section and complete left wing panel to the right of the build table. This being achieved, I will then be able to measure the distance of the raised left wing panel from the bottom of the bottom spar to the build table. According to the plans, I will need to have the left wing outer panel raised off the build table approximately 10" to insure the correct 85 degree angle of the two wing halves. This will allow for the correct dihedral angle so the retracts will be set at their correct 85 degrees. I know, it sounds complicated. And for those that have been down similar roads as this, it really is easy to get the grip on the mathematics. I am going to be holding my breath until I am certain the "EXACT" dihedral is set. I fear too much could go wrong at this point. Hence, measure twice, cut once. Measure three times, place structure and glue. Measure five times and....breath. LOL
Just a couple photos of the progress today. The outer right wing panel anti rotation pins are permanently in place.
Top hardwood spar in place....along with primary center sheeting skin in place. (I needed to do it this way to insure the ribs were perfectly aligned prior to placing the leading edge.
And finally...the leading edge...
Tomorrow I will remove the outer right wing panel section and move the entire assembly over to the right and do the necessary measuring to insure the correct 85 degree angle. Then I can start gluing on the top right wing skins. Once that is complete, I can flip the entire section over and complete the bottom structure of this Behemoth wing. And all these years I thought building a 60" or 72" wing was a pain. Yeah, try working with 112" of massiveness. LOL. Thankfully the center wing section is only a mere....wait for it.... 65"! Double doah….
I will have more photos tomorrow fellas. Hopefully I will be well on my way to starting the bottom construction on this big bird wing.