Installing The Canopy Retainer; Installing The All-Flying Tail-Plane - GRAUPNER Alpina5001 PRO Mode D'emploi

Installing the canopy retainer.

The canopy is held in place by a forward Steel locating pin and a leaf-spring at the rear. The
forward canopy pin is held in place by the channelled hardwood support. The support is
glued to the inside of the canopy, at a position just inboard of the forward canopy opening in
the fuselage, using thickened epoxy. Be sure to roughen the inside of the canopy with
abrasive paper before gluing. The canopy pin is likewise bonded into the channel in the
hardwood support – such that the pin protrudes about 13mm from the front of the support to
engage with the rim of the fuselage opening. Once cured, test fit the canopy, and a 3mm drill
or suitable round file to form a recess in the forward rim of the fuselage opening to
accommodate the canopy pin. Re-check and trim carefully until a perfect fit is achieved.
The rear leaf-spring is fixed such that the end of the spring protrudes about 10mm from the
inner rear edge of the canopy Prepare the area 50-60mm along the width of the leaf-spring
for bonding to the canopy using abrasive paper. Glue the spring in place first using an instant
adhesive and then bond it to the canopy with one or more layers of fibreglass cloth (160 g)
suitably treated with epoxy resin.
The wooden canopy reinforcement is now bonded to the inside of the canopy at a position
about 170mm from the front and 15 – 18mm deep. Bond it into place using a suitably
thickened epoxy resin.
Strips of self-adhesive felt may be installed along the inside edge of the canopy to complete
the job.
Tip. Work carefully and accurately. Your patience will be rewarded by a tight fitting
canopy!

Installing the all-flying tail-plane.

CAUTION! The elevator bell-crank mechanism is pre-installed in the fuselage, but is
yet to be permanently glued into place.
Attach the all-flying tail-plane making sure that the rearward steel wire joiner passes through
the hole in the bell-crank installed the fin. Carefully check the alignment of the tail-plane
halves with the fin.
Prepare a means to hold the fuselage with the fin at right angles to the work surface. Also
prepare something on which to support the two tail-plane halves at right-angles to the fin and
at the correct height. A few carefully selected books and/or Compact Disc holders might well
serve as an adequate jig for this purpose.
Now loosen the two Aluminium nuts holding the bell-crank bearing in place and make any
adjustment necessary to ensure that that tail-plane halves can be aligned at exactly 90° to
the fin. Apply a little thickened epoxy to the inside of the two nuts and carefully tighten,
constantly checking that correct alignment between tail-plane and fin is maintained at all
times.
Leave the entire tail-plane assembled in the jig described above until the adhesive has fully
cured.
Graupner GmbH & Co. KG, Henriettenstraße 94-96, 73230 Kirchheim
29
Fig 3. Canopy Retainer
www.graupner.de * www.tangent-modelltechnik.com