Specifications

18 MosquitoBite Planes Robin
Creating the Horizontal Stab
(H.S.)/Elevator
Creating the Horizontal Stab
Locate the following:
• 2 Horizontal Stab Base Sheets
• 2 Horizontal Stab Top Sheets
• 10 Horizontal Stab Ribs
• 2 Horizontal Stab Doublers
• Parts A and B of Horizontal Spar
Preassemble parts A and B of the H.S. Spar.
Build both halves of the Horizontal Stab (H.S.) at the same time.
Locate the two H.S. Top Sheets. They are slightly deeper than the
H.S. Base Sheets.
On each H.S. Top Sheet, use thin CA to glue on the H.S. Ribs (5 per
side). Ribs should sit within the depth of the base. If a Rib extends
beyond one side, it is facing the wrong way.
Suggestions: Start with a Rib closest to the centre of each Base
Sheet instead of Ribs at the ends. Keep each Rib as vertical as
possible as you apply CA to its base.
Gently push the Horizontal Stab Spar onto the rear tabs of the
H.S. Ribs. See Figure 43.
Use thin CA to glue the H.S. Spar along the H.S. Top Sheet.
Locate the two Horizontal
3
⁄16" Stab Doublers. Use thin CA glue to
glue each Doubler to each of the inner Stab Ribs. See Figure 44.
Locate
1
/ 4" x
1
/ 4" triangle stock.
Measure and cut a piece the full length of the Horizontal Stab.
Position this piece on the H.S. Top Sheet, along the back of the
H.S. Spar. Use thin CA to glue in place. Be careful not to introduce
twisting to your Stab as you handle it.
Fig 43
H.S. shown upside down
H.S. shown upside down
Fig 44
Cut two pieces of
1
/ 16" scrap balsa, 1
1
/ 8" x 3". Be sure the 1
1
/ 8" grain
follows the same grain direction of the H. Stab Top Sheet.
Position this piece between the two H.S. Doublers, on the two
visible lips of the Top Sheet. Use thin CA to glue in place.
See Figure 45.
Put aside the second 1
1
/ 8" x 3" sheeting to do the opposite side,
after the H.S. Top Sheet is on.
Fig 45