ORIGINAL: Jim Clausen
Well, today another hickup.
I have removed the wings from the laminating process and trimmed and sandes all of the edges and sanded in the dihedral. I was about to epoxy the leading and trailing stock in place and found that the airfoil or wing thickness at the center of the wing was thicker than that in the plan. I did not want to laminate material to the stock that I had on hand for the leading and trailing edges, so I have ordered the proper sizes from the Balsa Store that will fit.
The flight surfaces have been lightly sanded to contour, without any flat spots and just sitting in the shucks for now.
The wing cores with skins and landing gear blocks with the walls and floors in place have a weight of: L/W 10 and 3/8 ounces and R/W 10 and 1/3 ounces. Not too much more to report.
Jim
Jim,
sounds like you are right on target. At a touch under 21 ounces you have about 4 ounces left for TE, LE, tips and ailerons and chin. You might need 5 or 6 tops so your wing will be 25-26 ounces. Your sheeting might have been a tad heavy or perhaps a little too much glue. In any case, it is hard to build a 60 size classic with wings in the sub 22 ounces unless they are thin airfoil wings like in the more modern designs (e.g., Aurora, Beetle, etc.).
Remind me what you are planning to use for servos.
BTW, are the cores symmetric or did one core TE end up being different than the other? I had that problem with the GP cores I built of which I posted pics in this thread. I had to fix it prior to sheeting (about 80% fix) and then the remaining 20% afterward by sanding the wood to even thickness in each panel. My Tipo 10 cores were perfect. The wing was a snap to build - each panel just tracked the other like a mirror image - the beauty of good, exact cores.
David.