3
4
At one end only splice leading edge F15 (4×4 mm obechi)
and both spruce spars F16 (5×2 mm spruce) over a length
of ca. 15 mm. Leading edge and spars must have a length
of 1,110 and 1,150 mm, respectively.
Fit and glue in place upper spar F16. Glue leading edge
F15 to front of ribs and secure with pins inserted in wing
jig just in front of leading edge.
Slightly chamfer contact surface of both auxiliary spars
F17 at centre ribs and glue to rear end of ribs.
Note: Place large cut-out of F17 at wing centre.
Glue riblets F2 A to either side of centre ribs and secure
with small clamps. Then glue reinforcement F18 for wing
retaining screw to ribs and auxiliary spars.
5
6
Glue together upper (F19 + F20) and lower (F21 + F22) wing
sheeting and place on a flat surface. Immediately remove any
excessive glue and secure with tape until dry.
Glue in place upper wing sheeting of each wing half in two steps.
Slightly chamfer front edge of upper wing sheeting for proper fit at
leading edge. Apply glue to contact surface of leading edge and
the first 5 mm of ribs. Fit upper wing sheeting in place on leading
edge and secure with tape. Leave to dry.
Apply glue to top of ribs (with the exception of centre ribs!), to
upper spruce spar and to auxiliary spar. Slightly press on wing
sheeting and secure with pins and tape. Make sure that wing
sheeting is in good contact with ribs.
Repeat for opposite wing half. When glue has dried, remove wing
from jig, turn upside down and from the inside apply glue to wing
sheeting at centre rib position. Replace wing in jig and secure
wing sheeting with pins and tape at centre rib position.
i
F15
F15
F16
F16
F17
F18
F19
F20
F22
F21
F2 A
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