Before You Start - Kavan DINGO A3 Bauanleitung

INTRODUCTION
The A3 glider DINGO 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.
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 (please note – there is left and right one
– match the notches to the plan). Glue the balsa ribs 1 in
place. Glue the balsa root rib 4 between the leading and
trailing edges – the bevelled side towards the root of the
wing half (Det. F-F).
Glue the wing main spar 5 (3x8 mm spruce stick) into
the notches in the upper side of ribs 1; do not glue it
to the root rib 4 yet. Glue the gussets 6 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.
DINGO
796mm
655 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).
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 leading edge to the shape
(Det. D-D). Glue the wing tip ribs 7 in place; once cured,
sand them to the shape.
Trial fit the wing halves root ribs – if attached together
the wing dihedral must be 150 mm (Det. E).
Glue the wing joiners 8 to the both sides of the main
spar 7 and into the notch in the root rib 4 of one wing
half matching the upper edge of the main spar. Apply
generous amount of glue to both root ribs, wing joiners
8, leading and trailing edges, and attach the wing hal-
ves 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 150 mm above the buil-
ding 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 thoroughly. Once cured,
carefully sand the joint and the entire wing using san-
ding blocks with a coarse and then fine sandpaper to
smooth any rough areas. The wing is ready to covering
now.
Horizontal Tailplane
The horizontal tailplane is to be built directly on the
plan protected with a clear plastic film in similar manner
as the wing. Pin down the spruce trailing edge 11 over-
lapping on both two ends. Glue the balsa centre plate
12 to the trailing edge 11. Glue the spruce leading edge
13 to the centre plate and pin it down overlapping on
both two ends. Glue in place the ribs 14 made. Start with
150g