GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY
Modifications reserved. No liability for printing errors
12/2010
0062196
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No. 2972 and 2973. In this case the servos are connected automatically when you
plug the wing panels into the fuselage.
The four incidence pegs must now be glued in the wing root ribs so that the wings
have a fixed location relative to the fuselage, and cannot swivel on the wing joiner.
Open up the rectangular holes in the root fairings on the fuselage, cutting along the
marked lines using a rotary cutter and / or a file. Leave about 1 mm space all round
the opening for the wing joiner.
Drill 3 mm Ø holes in the wing root ribs for the incidence pegs, drilling to a depth of
50 mm. To check the fit, plug the two wing panels into the fuselage using the rectan-
gular CFRP joiner and the incidence pegs. Take care not to push the steel dowels
right into the wings.
Wing joiner
The aerodynamic forces of the ALPINA 3001 ELEKTRO are absorbed by a rectan-
gular-section carbon joiner which fits into a hybrid carbon spar in the wings. The wing
joiner is a high-quality hand-made laminated component which incorporates the
correct dihedral, and is immensely stiff and strong. Although the parts are carefully
standardised it is still possible that you will find minor tolerances in the fit. This is not
a quality defect, and any tightness can be eliminated with a few careful passes of
120-grit abrasive paper.
