3
TARA
INTRODUCTION
The F1H glider TARA 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 dopes –
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.
SPECIFICATION
Wingspan
1100 mm
Length
828 mm
All-up Weight
225 g (min. 220 g)
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.
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 hob-
by 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).
ASSEMBLY
• Lay the wing building plan on the building board and put a sheet of a thin
clear plastic film to protect the building 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 oversized in the kit. Pin
the stick to the plan overlapping at both ends – you will cut/sand them
to the correct length/shape once the assembly of the particular part has
been finished.
Wing
There are the wing centre section and both two wing outer panels drawn on
the building plan – so you can assembly them simultaneously, if you wish.
Pin the left half of the tapered balsa trailing edge
3a
to the building plan
carefully matching the pre-cut notches with the ribs drawn on the plan.
Attach the other half of the trailing edge
3b
to the
3a
and check whether the
notches are matching. If yes glue the
3b
to the
3a
and pin down to the plan.
If the notches do not match, trim the trailing edge
3b
as necessary to fit.
Lightly sand the CNC milled balsa ribs
1
(Det. G-G)
to remove any imper-
fections.
Pin down the pre-shaped balsa leading edge
2
. Glue the balsa ribs
1
in pla-
ce. Fit, cut to size and glue the bottom 1.5 mm balsa sheeting
4
between the
leading and trailing edge. Glue two ribs
6
inset about 2 mm along the outer
edge of the central sheeting and another one in the centre of the sheeting.
Glue the balsa end rib
5
in place – the bevelled side outwards (in similar
manner to
Det. F-F
).
Glue the wing main spar
7
(3x8 mm spruce stick) into the notches in the
upper side of ribs (trim the bottom edges slightly to slip easier in). Glue only
the bottom of the main spar to ribs
5
; insert partly the wing joiners
42
along
the sides of the main spar in order to get the correct alignment in the wide
notches (
DO NOT glue the joiners yet!
). Fit and glue the upper central
sheeting
8
and
9
(
Det. B-B
) in place. Apply some additional glue to all joints
if necessary and let cure.
Once the glue has cured thoroughly remove the wing centre section from
the building plan and sand the leading edge, trailing edge and main spar
flush with the edge of the bevelled outer ribs
5
. Sand the leading edge to
the shape (
Det. D-D
).
The wing panels are to be built in the similar manner to the wing centre sec-
tion. Pin the tapered balsa trailing edges
40
to the building plan carefully
matching the pre-cut notches with the ribs drawn on the plan.
Lightly sand the CNC milled balsa ribs
41-46
to remove any imperfections.
Pin down the pre-shaped balsa leading edges
48
. Glue the balsa ribs
41-
46
in place; bevel the front edge of the ribs in order to match the leading
edge
48
perfectly. In similar manner lightly sand the bevelled root ribs
47
to match the leading and trailing edges and glue them in place (
Det. F-F
).
Glue the wing panel main spars
49
(3x8 mm spruce stick) into the notches
in the upper side of ribs. Glue only the bottom of the main spar to ribs
47
;
insert partly the wing joiners
42
along the sides of the main spar in order to
get the correct alignment in the wide notches (DO NOT glue the joiners yet!).
Trim the gussets
51
as necessary and glue in place. Apply some additional
glue to all joints if necessary and let cure.
Once the glue has cured thoroughly remove the wing panels from the buil-
ding plan and sand the leading edge, trailing edge and main spar flush with
the edge of the bevelled outer ribs
47
. Glue the wing tips
50
in place; once
cured, sand them to the shape. Sand the leading edge to the shape (
Det.
D-D
).
Trial fit the wing centre section and wing panels – if attached together the
wing panel dihedral must be
100 mm
(
Det. E
). Once satisfied, glue the
plywood wing joiners
42
to the wing centre section main spar
7
. Apply a ge-
nerous amount of glue to wing centre section end ribs, wing panel root ribs
and wing joiners
42
and attach the wing panels to the wing centre section.
Lay the wing centre section down on the building board; secure it with a
couple of magazines wrapped in a plastic bag serving as a weight. Align the
wing panels so their tips were 100 mm above the building board (you can
use a couple of books or a wooden block). Let the glue cure thoroughly. Once
cured, carefully sand the joints and the entire wing using sanding blocks
with a coarse and then fine sandpaper to smooth any rough areas.
Once the dope has cured, sand the entire wing frame with fine sandpaper.
The wing is ready to covering now.
