Build Instructions
Wing Assembly
(continued)
7.
Check each wing panel for proper square and correct if necessary.
Sight from the
wing tip or root, along the
bottom
of the wing and compare the flats along the bottom of the
ribs (the ribs taper up to the trailing edge so just compare the flat portion of the ribs forward
of the S1 spar). Straight wings will have each flat rib bottom parallel to the next. Warped
wings will show deviation from rib to rib. To correct a warped wing, mist the wing panel with
glass cleaner, then pin, weight, or tape the panel to a flat building surface. Allow the wing
panel to dry, once completely dry, the wing will assume the shape of the surface it has been
pinned to.
Note:
This sequence appears as step 8 on the original printed plans. I think it is
far easier to correct the wing square prior to joining the wing panels to the center section
and have moved this step up in the build order in this instruction set.
8.
Join the completed
right
and
left
wing panels to the wing center section. Fit the S1 spar to
the notch in the bottom of ribs R2 and R3. Align the right and left wing panel root edges
flush with the right and left edge of the wing center section. Glue.
Note:
This was step 7.
9.
Sand the wing lightly to prepare it for covering. If the model will see any outdoor use, or if
your local flying area is particularly hot and humid, seal the model using a clear lacquer or
polyurethane based spray. We suggest ‘DEFT’ brand ‘Clear Wood Finish’ or some other
non-water based sealant.
Tip:
Just a light misting of the sealer is all that is required to
cause water to bead up and roll off the model. Using too much sealer only serves to make
the final model heavy.
10. Use the covering guide on the plan sheet to cut the covering for your wing panel and apply
it according to the directions provided by your covering film manufacturer. We suggest our
AeroLITE
TM
film or a high quality pre-stretched tissue.
Fuselage Assembly
1.
Build the central crutch.
Locate the fuselage central crutch parts F1, F2, and F3 then dry
fit
(use no glue)
these components together – in the arrangement illustrated on the plan.
2.
Key the tabs, along the completed central crutch assembly, within the corresponding
locating notches of the
right
fuselage side then glue.
3.
Fit the lower inside nose doubler F7. Locate the tab at the top of F7 within the notch
between F3 and the fuselage side, align the holes in F7 with the corresponding holes in the
fuselage side. Use the aluminum axle tube to assist with the alignment of F7 (but don’t glue
the tube in!) at fuselage side, then bond F7 to inside surface of fuselage as shown on plan.
Tip:
Use a slow set glue here – thick CA or better yet, traditional wood glue would be best.
4.
In the same manner as step 3 above, bond the F6
upper
inside nose doubler to the
inside
surface of
right
fuselage side as illustrated.
5.
Key the radio tray former F4 to the
right
fuselage side using the tabs on F4 to locate the tray
within the notched locations on the
right
fuselage side.
PuddleBug
TM
UM
- Build Instructions © 2010 Stevens AeroModel, all rights reserved.
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