Lycoming Thunderbolt Engine Sbach 342 Manual

Sbach 342
wingspan: 2,9 m • length: 2,7 m • engine: 100–170 cc • RTF weight: 15–16 kg
build book
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Thank you for buying this kit and wish you a pleasant building.

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Sbach 342 • wingspan: 2,9 m • length: 2,7 m • engine: 100–170 cc • RTF weight: 15–16 kg
Fuselage
3
1. Prepare and clean parts of motor lodge
3. Add the reinforcements on both sides - hard plywo-
od
5. The rear bulkhead glued and motor lodge top -
hard plywood
2. Using Epoxy glue the motor lodge parts
4. Bottom plate and next bulkheads inserted
6. Spruce reinforcement add behind the 9 mm engine
mount desk

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Sbach 342 • wingspan: 2,9 m • length: 2,7 m • engine: 100–170 cc • RTF weight: 15–16 kg
Fuselage
4
7. Complete the top, bottom and sides of fuselage
base
9. Fit bottom base to the motor lodge
8. Glue the GFK hinges for holding rudder to the bot-
tom of the tail parts
10. Add gradually next bulkheads and fit them to the
bottom base
12. Added the sides of fuselage11. Insert the top and continue with fitting bulkheads

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Sbach 342 • wingspan: 2,9 m • length: 2,7 m • engine: 100–170 cc • RTF weight: 15–16 kg
Fuselage
5
16. Spruce strips 3x3 mm fit to the ridge15. Spruce strips 5x5 mm add to the bottom
14. All the rear bulkheads glued and attaches the
rudder ribs
13. All the rear bulkheads glued and attaches the
rudder ribs
18. For gluing use CA or dispersion adhesive17. Cover the ridge precisely with wet balsa 2 mm

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Sbach 342 • wingspan: 2,9 m • length: 2,7 m • engine: 100–170 cc • RTF weight: 15–16 kg
Fuselage
6
23. Abrade balsa cover and use the filler if it is neces-
sary for achieving a smooth surface
24. Test of engine and ignition placement
22. See the partition of balsa cover21. The bulkheads of upper frame of canopy - covering
with balsa 2mm
20. The bulkheads of upper frame of canopy - cove-
ring with balsa 2mm
19. Cover also the rudder with balsa

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Sbach 342 • wingspan: 2,9 m • length: 2,7 m • engine: 100–170 cc • RTF weight: 15–16 kg
7
Rudder
30. Finished rudder before covering of the film29. Glue one edge (CA) and then the rest (dispersion
adhesive)
28. For easy making of arc - water the light balsa 2mm27. Balsa cover on the rudder top
26. Join rudder to fuselage with 4 mm brass tube25. Put the ribs of rudder together and glue

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Sbach 342 • wingspan: 2,9 m • length: 2,7 m • engine: 100–170 cc • RTF weight: 15–16 kg
8
34. Balsa 2 mm covering
36. Finished elevator35. Cut the hole for servo on the bottom
33. Fit all next ribs
32. Using Epoxy glue the GFK hinges inside31. Put the ribs of elevator together
Elevator

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Sbach 342 • wingspan: 2,9 m • length: 2,7 m • engine: 100–170 cc • RTF weight: 15–16 kg
9
41. Covering on both sides 42. Film cover and GFK hinges glued inside
39. Make an arc on the wing end 40. Leading part of the wing covered with balsa 2 mm
38. Complete wing frame37. Put the ribs of wing together
Wing

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Sbach 342 • wingspan: 2,9 m • length: 2,7 m • engine: 100–170 cc • RTF weight: 15–16 kg
10
47. Finished arc 48. Complete wing and aileron
451. Glue one edge (CA) and then the rest (dispersion
adhesive)
46. Glue one edge (CA) and then the rest (dispersion
adhesive)
44. Prepare and wet balsa cover of43. Balsa overlap 9 mm on the root and 6 mm
on the end rib
Wing

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Sbach 342 • wingspan: 2,9 m • length: 2,7 m • engine: 100–170 cc • RTF weight: 15–16 kg
11
53. Covering film on the wing top 54. Prepare and place the labels
51. Prepare the holes for GFK horns to the aileron 52. Trying to complete with wings
50. Complete wing and aileron49. Complete wing and aileron
Wing

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Sbach 342 • wingspan: 2,9 m • length: 2,7 m • engine: 100–170 cc • RTF weight: 15–16 kg
12
55. The instrument panels printed on paper
and laminated
Cockpit

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Sbach 342 • wingspan: 2,9 m • length: 2,7 m • engine: 100–170 cc • RTF weight: 15–16 kg
13
56. Cover the whole fuselage with covering film and
stick the labels
Covering and finishing

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Sbach 342 • wingspan: 2,9 m • length: 2,7 m • engine: 100–170 cc • RTF weight: 15–16 kg
14
57. Scale colored propeller
Covering and finishing

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