Specifications

Dryfit Flap Pivot Ribs into the two remaining slots, then dryfit
both Flap assemblies into the trailing edge of the Wing so that
the Flap Pivot Ribs drop into the Flap Support Arms, as shown in
Figure 11.
Using thin CA, glue the back tab of each Flap Pivot Rib and just
the rear portion of each Flap Pivot Rib. Be sure no glue contacts
the Flap Support Arms. When glue cures, remove both Flap
assemblies and complete the gluing of each Flap Pivot Rib.
Sand the top side of each Flap trailing edge to a fine point – in
the same fashion as done with the Ailerons. See Plan Sheet 2.
Cut a sheet of
1
/ 16" balsa sheeting the length of the Flap, by 3
1
⁄2".
Lay the Flap upside down on top of the
1
/ 16" sheeting. Position the
sheeting
1
⁄4" past the Flap Base Sheet. Use thin CA to glue along
the trailing edge.
When the trailing edge has cured, sneak a drop of CA on top of
each Rib while still working on a flat surface.
Rock the Flap forward until the Flap Horn contacts the top
sheeting. Mark the sheeting on either side of the Flap Horn to
indicate the Horn Opening.
Cut a small slot (about
1
/ 2" long) out of the sheeting to allow the
Horn to emerge. See Figure 12.
Use clamps on the leading edge of every Rib to hold the sheeting
against the Flap Base Sheet.
Now is the time to manually adjust the Flap to remove any
warping caused by handling.
Use thin CA to glue the leading edge of the Flap. Remove clamps
when glue has cured.
Sand the leading edge of each Flap to match the profile on Plans
Sheet 2.
Cover the main Flap Surface with Ultracote. Do not cover the
Pivot Rib.
6 MosquitoBite Planes Robin
Fig 11
CA Glue
CA glue trailing edge
Sneak in CA
Fig 12