11
The openings in both sides of the fuselage wing fairing must be opened out at the
positions marked in the molding. Ensure that you leave about 1mm space arround
the larger rectangular opening for the wing joiner.
To ensure that the wings are held secure against twisting loads at the fuselage, four
steel wing incidence pins need to be securely bondede into the wing root ribs.
Open out the holes in the root ribs to accomodfate the wing incidence pins using a
Ø 3 mm drill to a depth of about 50 mm. The the wing halves can now be dry-rigged
against the fuselage using square CFK wing joiner and the wing panels may be dry
fitted to check for allignment. Tip: Take care to avoid that the wing incedence pins are
not
pushed
back
into
the
holes
in
the
wing
roots!
The wing joiner.
The wing joiner for the
ALPINA 3001 Champ PRO
is in the form of a carbon square
joiner in a carbon composite sleve. The wing joiner itself a high-quality carbon fibre
laminate with in-built V-shaped profile which ensures excellent load bearing
properties. In spite of high levels of standardisation there can be small tolerances in
the fit due to limitations in the production process. This is NOT a quality defect – it
can be easily adjusted, if necessary, in a few seconds using 120-grain sandpaper.
