Assembling Your Alpina 4001 Pro; The Fuselage; Fuselage Openings; Installing The Winch Hook - GRAUPNER Tangent Alpina 4001 PRO Notice De Montage

Note regarding the use of Epoxy Resin.
Epoxy alone is not a viable adhesive! However, the addition of appropriate additives
makes for a variety of excellent adhesives. Match the choice of additive to the job at hand:
Chopped cotton fibres – produces a tough but flexible joint.
•
Superfine glass fibres - makes a hard joint.
•
Micro-balloons – produces a highly effective, lightweight filler
•

Assembling your ALPINA 4001 PRO.

The kit you have purchased includes all the parts required to complete the basic airframe
(ARC) and covering (ARF), but does not include adhesives or radio control components.
You can make a significant contribution towards the ultimate appearance and performance
of your model by building carefully and accurately. It is a well known fact that a poorly built
model does not fly well and may be difficult to control. A well built and properly trimmed
model will reward the pilot and spectators with good performance and accurate handling
characteristics. Be patient, take your time; the effort will be well worth while!
Tip. Take time to read through these instructions in their entirety before commencing
the assembly as this will provide you with a better insight of all the individual steps
and how they might affect one another.

The Fuselage.

Begin the construction with the Fuselage as this is the point of reference for all other parts.

Fuselage Openings

Open out all of the openings in the fuselage in the area of the wing fairing and the tail-
plane. Use a 3 mm dia. drill to make a series of small adjacent holes to prepare the
openings as indicated by the markings in the mould. Finish the openings using a small file.
Tip: Use a needle file or suitable rotary tool to finish the job.

Installing the winch hook

Using a flexible tape-measure, measure and mark a point 600 mm from the nose along the
underside of the fuselage. Drill a 2.5mm hole to accommodate the winch hook. Cover the
hole on the outside with tape to protect the surface and roughen up the inside of the
fuselage in the area of the hole. Now glue the tow hook support block into place centrally
over the hole using thickened epoxy. Use a self tapping screw, through the hole in the
bottom of the fuselage to secure the support block while the epoxy cures
Tip: for additional security, you may wish to finish the job by laminating the support
block to the fuselage bottom using 2-3 layers of suitably wetted 120g fibreglass
laminating cloth.
Once the support block has thoroughly cured, drill a Ø 2 mm pilot hole to accommodate
the supplied winch hook.
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