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Sukhoi SU 31M 

 
Building instructions - Sukhoi SU 31M 

 

 

20  Tailskid reinforcement 

Plywood 3 mm 

Die-cut 

21  Tailskid 

Steel rod 2 mm 

Ready made 

22  Tailskid fairing 

Plastic 

Vac. moulded 

23  Bottom cowl section 

Plastic 

Vac. moulded 

24  Top cowl section 

Plastic 

Vac. moulded 

25  Canopy frame 

Plastic 

Vac. moulded 

26  Canopy 

Plastic 

Vac. moulded 

27  Canopy support 

Plywood    

Die-cut 

28  R.H. wing 

High-density foam 

Moulded 

29  L.H. wing 

High-density foam 

Moulded 

30  Wing spar, 5 x 970 mm 

CFRP tube 

Ready made 

31  Bottom wing fairing 

Depron  

Die-cut 

32  GRP elevator horn 

GRP 

Ready made 

33  Rudder horn 

Plastic 

7491/03 

34  Aileron horn 

Plastic 

7491/01 

35  Aileron pushrod 

Steel rod 1.5 mm 

Ready made 

36  “Snake” outer sleeve, 500 mm 

Plastic 

 

37  “Snake” inner, 1 x 500 mm, one Z-bend 

Steel rod 

 

38  Pushrod connector 

Metal 

7490/07 

39  Captive nut, undercarriage 

Metal 

7766/04 

40  Undercarriage unit 

GRP 

Ready made 

41  Nylon undercarriage screw, M4 x 70 

Nylon 

Ready made 

42  Nylon wing retainer sleeve, M6  

Nylon 

7329/66 

43  Nylon wing retainer screw, M6 x 60/80 

2 + 2 

Nylon 

 

44  Wheel, 70 x 4 mm 

Plastic 

Ready made 

45  Machine screw, M4 x 35 mm 

Metal 

7776/31 

46  Nut, M4 

Metal 

7774/04 

47  Self-locking nut, M4 

Stahl 

7766/24 

48  Rudder horn screw, M2 

Metal 

7772/40 

49  Canopy retainer hook 

Metal 

7800/00 

50  Front hook plate 

Balsa 2.5 mm 

Die-cut 

51  Rear hook plate  

Balsa 2.5 mm 

Die-cut 

52  Aileron horn reinforcement 

Balsa 2.5 mm 

Die-cut 

53  Canopy retainer rubber band 

Rubber 

Ready made 

54  Self-tapping cowl retainer screw 

10 

Metal 

7768/00 

55  Hinge 

Nylon 

7495/00 

56  Self-adhesive film strip, aileron 

Plastic, 480 x 50 mm 

Ready made 

57  Self-adhesive film strip, elevator 

Plastic, 190 x 40 mm 

Ready made 

58  Self-adhesive film strip, rudder 

Plastic, 105 x 20 mm 

Ready made 

59  Pushrod retainer clip 

Plastic 

7489/07 

60  Wing retainer screw reinforcement 

Balsa 2.5 mm 

Die-cut 

61  Decal sheet 

Self-adhesive film 

 

62  Building instructions 

 

 

 

Summary of Contents for Sukhoi SU 31M

Page 1: ...ailplane area approx 7 2 dm Weight approx 2000 g RC functions Elevator Ailerons Rudder Speed controller or motor switch Recommended power system actro CL 6 Köhler and actronic 40 18 12 cells 13 x 8 propeller Fun 480 33 5 2 Kontronik 10 cells 14 x 8 propeller 12 cells 13 x 7 propeller aero naut Modellbau GmbH Co KG Stuttgarterstr 18 22 D 72766 Reutlingen Germany http www aero naut com aero naut Mod...

Page 2: ...et material The motor mount is assembled from parts 15 19 Sand the dark coloration from the cut edges and remove dust before gluing The motor mount plate 15 must be positioned with the two slots on the left and the single slot on the right Glue part 16 in place with the two lugs on the left and part 17 with the single lug on the right Figs 14 15 16 Glue parts 18 19 in place Note that part 19 has o...

Page 3: ... and cut off excess screw length Cut a slot for the hinge 55 in the centre of the fuselage tail post using a balsa knife and glue the hinge in it Cut a matching slot in the rudder Form a Z bend in the pushrod 37 as for the elevator and connect it to the inner hole in the rudder horn Slip the steel pushrod into the snake outer 36 and through the pushrod connector 38 mounted on the servo The fin can...

Page 4: ... the servo leads exit the wing on the top surface Glue the balsa supports 52 in the slots in both ailerons Please take care that no glue gets onto the aileron hinge The spigot of the aileron horns 34 has to be shortened slightly roughen the joint surfaces and file notches in the spigot to provide a key for the epoxy Glue the horns in the balsa supports 52 Fig 22 The ailerons can now be cut through...

Page 5: ...ed 8 Front fuselage reinforcement 1 Plywood 3 mm Die cut 9 Side fuselage doubler 2 Balsa 2 5 mm Die cut 10 Fuselage reinforcement undercarriage 1 Plywood 3 mm Die cut 11 Fuselage reinforcement captive nuts 1 Plywood 3 mm Die cut 12 Fuselage reinforcement battery support 1 Plywood 3 mm Die cut 13 Flight battery stop 1 Plywood 3 mm Die cut 14 Fuselage reinforcement cowl 2 Balsa 2 5 mm Die cut 15 Mot...

Page 6: ...04 40 Undercarriage unit 1 GRP Ready made 41 Nylon undercarriage screw M4 x 70 2 Nylon Ready made 42 Nylon wing retainer sleeve M6 4 Nylon 7329 66 43 Nylon wing retainer screw M6 x 60 80 2 2 Nylon 44 Wheel 70 x 4 mm 2 Plastic Ready made 45 Machine screw M4 x 35 mm 2 Metal 7776 31 46 Nut M4 2 Metal 7774 04 47 Self locking nut M4 2 Stahl 7766 24 48 Rudder horn screw M2 2 Metal 7772 40 49 Canopy reta...

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