□
1. Place the stabilizer in the stabilizer cradle and check the fit and incidence angle. The stabilizer should fit
snugly in the saddle. Locate and mark the exact center of the trailing edge and align that with the center of
the tail post.
□
33. The hatch is retained by the two 1/8” balsa dowels at the front and a single #6-32 x 1” bolt at the aft end.
You will have to attach the hold down blocks and drill and tap these at this time. You can mark the location
of the hatch hold down bolt in the bottom of the 1/4” top by backing the bolt out and then pressing the top
down on top of it to leave a mark.
□
32. Remove the hatch assembly from the fuselage and plain and sand the sides (FH-1’s) and the triangle stock
flat to receive the 1/4” hatch top for a good glue joint.
□
31. Install the 3/8” triangle stock on both sides.
□
34. Use the aft end of the hatch assembly as a guide to angle trim the end of a piece of 1/4” x 4” balsa, then
glue in place on the hatch top.
□
35. Bolt the hatch assembly back in place and plain and sand to shape. A good method for getting a nice joint
between the hatch and the fuselage is to take a piece of waxed paper and cut pieces to fit against F-3 and
F-5 and about 1⁄4”oversized. Next mix a batch of Sig Epoxo-Lite and butter both ends of the hatch around
and the edges so that when the hatch is bolted in place the Epoxo Lite will squeeze out to form a tight fit.
Now bolt the hatch in place until the Epoxo-Lite cures and then remove and sand to shape.
□
36. The cheek cowls are composed of five parts and will later be cut to allow part of them to be fixed to the
hatch while the major part of them will be attached to the fuselage. Note that CCL designated parts are for
the left cheek cowl and those marked CCR are for the right cowl, I will describe the assembly of the left
cowl. Start by gluing CCL-1 to CCL-3. Next add CCL-2 to the bottom of this assembly. Now add CCL-4.
Trim this assembly until you get a reasonably good fit to the fuselage. With this assembly in place on the
fuselage, add CCL-5 to the top of this assembly. Trim it for a good fit and then glue CC-5 to the cheek cowl
assembly. Repeat this for the right cheek cowl.
□
37. Place the cowl ring on the firewall with two 1/8” dowels in the holes supplied in the cowl ring. NOTE:
for a good fit you may want to use short sections of 1/8” brass tubing instead of wood doweling. With the
cowl ring in place on the firewall, drill holes for the retaining screws, then remove the cowl ring. Trim
the fiberglass cowl about 3/16” to provide a straight clean edge. Place the cowl ring on the bench with the
labeled side up and place the glass cowl over it until the ring is nested inside the glass cowl. If the fit is
irregular, sand the inside of the cowl until it is achieved, then Epoxy the cowl ring to the cowl.
□
2. Square the stabilizer by measuring from the exact top center of the firewall to the trailing edge at both sides
of the elevator tips.
□
38. Place the cowl onto the firewall and screw into place. Bolt the wing and the hatch to the fuselage and then
place the two cheek cowls in position and mark the outline of the cowl on the front of the cheek cowl
assemblies. Now trim and sand the cheek cowl assemblies to shape. Draw a line on both cheek cowls in
line with the front of the firewall. Also draw a line from the front of the wing leading edge to intersect with
this line. This will be the parting line for the cheek cowls and the smaller portion will be glued to the hatch
assembly while the main portion will be glued to the fuselage. Cut the two sections apart and then glue to
their respective locations. Use the same technique with a sheet of waxed paper to mate the two sections of
cheek cowl.
STAB INSTALLATION
□
3. Next check that the stabilizer is at 90º to the fuselage sides.
□
4. Glue the stabilizer to the fuselage with Epoxy. The elevator sections will be added after covering.
