| Tack down the covering
to the spar out at the wingtip for a couple of inches, and voila! Those
ugly wrinkles you were hoping to see go away will now stay there on
their own. Don't worry about it! Note that when I say wingtip, I mean
the very last vertical rib. The overhang we left in the covering earlier
will be used for the wingtip itself.
At the leading and trailing edge near the
center of the wing, precisely forward and aft of where you tacked the
covering to the spar, stick it to the wing. Pull it tight before tacking
it down, of course. The wrinkles will double up and become diagonal on
you. Do the same at the last rib, pulling tight mostly across the wing, but slightly outboard to tighten any slack between the tip and root where you've tacked the covering down, as shown below: My favorite method of pulling the covering tight, holding the wing, and ironing all at the same time with only two hands is to use the weight of the wing to help you. As seen below, the leading edge is still on the table, but I'm holding the trailing edge up and pulling the covering at the same time:
Once that's accomplished (and don't forget to do the other side) go around the entire wing, ironing down the covering to the very outer edges of the wing. Don't fold the covering around any edge yet, as that's coming up after some trimming. |