Before You Start - Kavan DARA F1H Bauanleitung

INTRODUCTION
The F1H glider DARA is a great entry level kit for any
modeller who has already gained some skills in the
classic balsa bashing and dope&tissue covering. You
will need some basic modeller's tools, glues and do-
SPECIFICATION
Wingspan
Length

BEFORE YOU START

Glue: You can use acetone based modeller's glue (UHU
Hart etc.), water resistant white glue (KAV9960 KAVAN
White Glue, BISON Super Wood etc.) or medium cyano
(Power CA, KAV9952 KAVAN Medium CA etc.).
Dope: KAVAN Classic line Adhesive dope (KAV9987),
Shrinking dope (KAV9986), Top gloss dope (KAV9989)
and Thinner (KAV9990) are the must for the dope and
tissue covering, indeed.
ASSEMBLY
• Lay the wing building plan on the building board and
put a sheet of a thin clear plastic film to protect the buil-
ding plan. If you have got just a small building board,
you can carefully cut the building plan into sections –
wing section, horizontal tailplane section etc.
• Before you apply the glue, please, always double check the
correct size, shape and alignment of the particular part.
• Balsa and spruce sticks are intentionally supplied over-
sized in the kit. Pin the stick to the plan overlapping at
both ends – you will cut/sand them to the correct len-
gth/shape once the assembly of the particular part has
been finished.
Wing
There are both two wing halves drawn on the building
plan – so you can assembly them simultaneously, if
you wish. Pin the tapered balsa trailing edge 3 to the
building plan and mark the position of the notches for
ribs with a soft pencil. Remove the trailing edge and
use a fine flat file to cut the notches according to the
building plan. Lightly sand the CNC milled balsa ribs 1
(Det. G-G) to remove any imperfections.
Pin down the pre-shaped balsa leading edge 2 and the
trailing edge 3 now featuring all those beautiful not-
ches. Glue the balsa ribs 1 in place. Fit, cut to size and
glue the bottom balsa sheeting 4 between the leading
and trailing edge. Glue the balsa root rib 5 along the
edge of the sheeting – the bevelled side towards the
root of the wing half (Det. F-F). Glue the rib 6 about 2
mm inset along the outer edge of the central sheeting.
Glue the wing main spar 7 (3x8 mm spruce stick) into
the notches in the upper side of ribs. Fit and glue the
DARA
1200 mm
815 mm
3
pes – you will find these handy with any of your future
projects as well. Please make yourself familiar with the
building plans and this manual BEFORE you actually
start the assembly.
All-up Weight
Tools and Accessories: you will need a perfectly flat
building board (at least 300x700 mm), modeller's knife
(Excel K1 w. No.11 blades etc.), jigsaw, sanding blocks
with 180 and 360-400 grit sandpaper, model hobby
pins, scissors, sharp model hobby knife, flat and round
fine file, soft flat (1/4"-3/8") brush, thin clear plastic film
to protect the building plan (a large PE bag cut in half
will work).
upper central sheeting 8 and 9 (Det. B-B) in place.
Glue the gussets 42 in place. Apply some additional
glue to all joints if necessary and let cure. Now you can
assembly the other half of the wing in the same way –
just remember you are building left and right halves,
not two lefts or rights.
Once the glue has cured thoroughly cut the leading
edge, trailing edge and main spar flush with the edge
of the outer wing ribs. Sand the upper central sheeting
flush with the bevelled root ribs 5. Sand the leading
edge to the shape (Det. D-D). Glue the wing tip ribs 41
in place; once cured, sand them to the shape.
Trial fit the wing halves root ribs – if attached together
the wing dihedral must be 200 mm (Det. E). Once sa-
tisfied, apply a generous amount of glue to both root
ribs (including upper and bottom sheeting edges) and
attach the wing halves together. Lay one of the wing
halves down on the building board; secure it with a
couple of magazines wrapped in a plastic bag serving
as a weight. Align the other half so the tip of it was 200
mm above the building board (you can use a couple of
books or a wooden block) and the trailing and leading
edges were in one straight line. Let the glue cure tho-
roughly. Once cured, carefully sand the joint and the
entire wing using sanding blocks with a coarse and then
fine sandpaper to smooth any rough areas. Wrap 25 mm
strip of nylon fabric all over the joint on both sides of the
wing and apply thinned adhesive dope to it thoroughly.
Once the dope has cured, sand the entire wing frame
with fine sandpaper. The wing is ready to covering now.
Horizontal Tailplane
225 g (min. 220 g)