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13.
Set the top spar into place and secure with a drop of thin CA at the front and rear of the spar where it meets the rib, making sure the
spar is pressed all the way down into the rib.
14.
Raise the front of the lower sheeting and glue it to the ribs with thin CA, making sure it is fully against the ribs. You can do this as
shown in the image below, by using two finger to raise the sheeting on either side of the rib and your thumb to make sure the spar
is flat, or by using some spare 1/16” scrap as spacers to hold the sheeting up between the ribs.
15.
Glue in place the front part of rib 1A as shown in the image below, making sure it is vertical to the wing sheeting.