assembly and required parts follows in numeric
order from W1 to W24.
The wing is assembled one section at a time - left,
then right inner sections, and the wing tips
separately. When a part is required in the build
sequence (for instance “W3”) refer to the plan set
for part placement.
You will dry fit the majority of this wing assembly
together only gluing at the final instructional steps.
When parts cannot easily be retained with friction,
use a single tiny drop of medium CA glue applied
sparingly through a CA glue applicator tip to “tack
glue” the part in place. Should you commit an
error in assembly it will be easier to recover from
the mistake and remove or correct the part fit in
error if you do not slather the assembly in glue
after each step! Further, this method of assembly
will allow our interlocking design to do it’s job as
each successive part installed within the wing will
help pull the entire structure square and true.
34. Begin by building left half of wing. Locate
parts W1 (main spar), and one each of ribs
W2, W3, and W4. Using the plan set as a
guide, dry fit ribs W2, W3, and W4 to slots
within spar W1. Note: The bottoms of all ribs
should seat flush with bottom of spars.
35. Fit and tack glue trailing edge W5 to ribs W2,
W3, and W4.
Note: Arrow on W5 faces root
rib W2.
36. Fit and tack glue leading edge web W6 to ribs
W2, W3, and W4.
Note: Arrow on W6 faces
root rib W2.
37. Fit and glue leading edge W7 to leading edge
web W6.
Note: Arrow on W7 faces root rib
W2.
38. Fit and tack glue sub-ribs W8 and W9 to spar
and leading edge.
39. Fit and glue gusset W10 to rib W2 and trailing
edge W5.
40. With wing flush against a flat surface, fit and
glue diagonals W11 through W14 between
ribs as indicated on plan.
NOTE: W11 differs
slightly to allow for the dihedral break, and
must be located between ribs W2 and W3.
With all diagonals in place, bond all mating
surfaces between ribs, spar, leading and
trailing edges with thin CA.
41. Repeat steps 34 through 40, mirrored, to build
the right half of the wing.
42. With center section held flat against the table,
fit and glue trailing edge W15 between ribs
W2.
43. Fit and glue leading edge parts W16 and W17
to ribs W2.
44. Fit and glue ply trailing edge reinforcement
W18 to trailing edge parts W5 and W15.
45.
Wing Tips:
Build the left wing tip first. Dry fit
spar W19 to ribs W20 and W21. Refer to the
plan for correct placement of parts.
46. Fit and tack glue leading edge web W22 to
ribs W20 and W21.
Note: Arrow on W22
faces polyhedral break of wing
47. Fit and tack glue leading edge W23 to W22
and ribs.
48. Assemble left wing tip sheeting W24(L) from
parts W24a(L), W24b(L), and W24c(L). Bond
with thin CA.
49. Fit leading edge of tip sheeting W24 flush to
leading edge W23. Tabs on ribs will partially
engage with slots in tip sheeting. Tack glue
W24 to W23 ONLY. Do not glue sheeting to
ribs or tabs at this point.
50. With wing tip on a flat surface, bend tip
sheeting over ribs, fitting tabs on ribs to slots
in sheeting and tack glueing assembly as you
proceed. Bond all mating surfaces between
ribs, spar and tip sheeting with thin CA.
51. Remove stand off tabs on spar and ribs W20
and W21. Lightly sand bottom of ribs and
spar smooth.
52. Fit wing tip to left half of wing, ensuring that
spar fits flush against rib W4, and that tabs in
tip sheeting fit flush in slots in rib W4. Bond
tip to wing with medium CA.
53. Trim and sand leading edge to flow smoothly
into tip sheeting. NOTE: Leading edge will
not contact rib W21 when finished.
54. Repeat steps 45 through 53 to build right wing
tip.
Caution!
Ensure that you build a mirror
image wing tip, and
NOT
two left wing tips!
Building Tip:
Turn plan over and place on a
light colored surface - the back side of the
Build Instructions
© 2011 Stevens AeroModel all rights reserved.
!
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