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5

E102056#1

7. Instructions
General notes:

Keep to the drying time for the glue, otherwise you may have difficulties. Other parts can be made whilst the glue 

is drying.

Use white glue, check that any glue you use does not melt the styropor / Depron foam.

Use a block and glasspaper for sanding all flat surfaces (sanding block is not included)  Use an all purpose glue 

to fix the sandpaper to a block.

Tick off the steps as you go along

The shortened form 'Sk' means sketch. A number in brackets (4) means part eg.4

Use mapping pins, most normal pins will bend or break under pressure!

Planning overview

7.1 Fuselage (body)
7.2 Tail plane and fin
7.3 Wings
7.4 Cover wings, spray with water and then dope
7.5 Colouring
7.6 Balancing
7.7 Flying

7.1 Fuselage

7.1.1 Assemble the building plan (Pages 15/17/19/3 pages) by cutting the plans along the broken lines and sello-

tape them together.

   

Note:

  Note the markings

7.1.2 Cut out the pattern for the nose (see plan) and using dabs of glue fix it to the 8mm plywood. Drill the 3mm 

hole for the front dowel (6)

7.1.3 Carefully saw out the shape of the nose. Do not forget the 20mm and 25mm lead chambers (The openings 

for the chambers will be drilled later)

7.1.4  Cut out the pattern for the nose cladding (2/plans) and trace it twice on to the balsa wood sheet, cut out the 

shapes with a modelling knife.

7.1.5 Start by firstly gluing on one side of the cladding (2) and then the other

    Apply the white glue in a circular motion to the nose (1). Make sure the edges that the edges are particulary 

well covered. Rub the cladding on to the nose until the glue starts to 'pull' then press it into the final position 

once more!

Cutting lines

Esq 1

Bead of glue

Summary of Contents for 102.056

Page 1: ...ded for pupils 10 years old plus by B Elsner Please Note The OPITEC range of projects is not intended as play toys for young children They are teaching aids for young people learning the skills of Cra...

Page 2: ...ish Wood varnish Base coat plus finish also in spray form Staining Water based finish with clear varnish 2 2 Material Depron thermoplastic Polystyrol hard foam PS white Working Cutting with a modellin...

Page 3: ...55 x 255 2 Nose sides 2 Balsa 2 x 48 x 95 3 Fuselage boom 1 Pine strip 6 x 8 x 495 4 Wing support 1 Balsa 2 x 20 x 125 5 Wing dowels 2 Beech dowel 3mm dia x 125 6 Fixing dowels 2 Beech dowel ca 3 x 2...

Page 4: ...056 1 6 The layout of the balsa pre cut ribs sheet and Depron 62 5 4 13a 12 2 2 7 8 12 13 Pre cut balsa ribs etc Balsa sheet tailplane Depron sheet Note Do not alter the layout due to the cutting dire...

Page 5: ...selage 7 1 1 Assemble the building plan Pages 15 17 19 3 pages by cutting the plans along the broken lines and sello tape them together Note Note the markings 7 1 2 Cut out the pattern for the nose se...

Page 6: ...plan as reference glue one dowel at the front end of the nose and the other at the end see plan Note Do not cut both of these pieces from the same length of dowel 7 1 9 Sand the nose and then chamfer...

Page 7: ...he plane has been flown 7 2 3 Sand the curves of the Fin and Tailplane to shape with a block and glasspaper Note The underneath of the Fin 8 must not be sanded 7 2 4 Ensure the Fin fits in the slot in...

Page 8: ...egularities can be removed on the top or bottom of the ribs can be smoothed in this way 7 3 5 Cut out the patterns for the angled wing supports 13a from the plan Use the patterns on the balsa sheet an...

Page 9: ...middle ribs A must not be glued 7 3 11 Glue the angle supports 13a against the second rib and leave to dry thoroughly 7 3 12 Place the middle rib A on the end of the main wing spar and lean it against...

Page 10: ...only apply glue to the ribs and spar The middle line on the joiner must be just visible Rub the joiner on the glued area and leave to dry for approximately 1 2 hour 7 3 20 Weight one half of the wings...

Page 11: ...and gently stretch it over the wing smoothing out any wrinkles as you go 7 4 4 Coat the top of the wing leading edge etc with paste 7 4 5 Hold the wing in the air turn it slowly so that the covering...

Page 12: ...l stop the wings from warping 7 3 8 Once dry the wing can be coated with a thinned 1 1 mixture of shrinking dope and thinners and placed on the trailing edge to dry 7 3 9 Coat the wings once more with...

Page 13: ...k is mad e smaller Keep repeating this stage until a smooth flight path is achieved 7 7 4 If the model dives add card strips under the leading edge of the wing the angle of attack is made larger Repea...

Page 14: ...14 E102056 1...

Page 15: ...15 E102056 1 Plan patterns Scale 1 1 1 2 3 11 9 12 5 4 10 6 6 6...

Page 16: ...16 E102056 1...

Page 17: ...Plan patterns Scale 1 1 17 E102056 1 Pattern for the nose 1 Win d Flyer 2 Win d Flyer 2 Hochstarthaken...

Page 18: ...18 E102056 1...

Page 19: ...Plan pattern Scale 1 1 19 E102056 1 Pattern tailplane Pattern nose side clad ding Pattern tail fin Pattern wing rood angle joiner 8 7...

Page 20: ...20 E102056 1...

Page 21: ...Wing patterns Scale 1 1 4 5 21 E102056 1 Selloptape 9 13 12 12 10 11 Left hand wing half Shape the tips as shown...

Page 22: ...22 E102056 1...

Page 23: ...23 E102056 1 Patterns for parts 15 16 17 and 22 scale 1 1 12 12 13a 13a 16 15 14 10 9 11 13a Middle rib A Flight direction...

Page 24: ...24 E102056 1...

Page 25: ...25 E102056 1 Patterns for parts 15 16 17 and 22 Scale 1 1 70 25 105 If found please notify the owner Name Address Town Tel 13 12 12 Right hand wing half...

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