SIG 4-STAR 60 Building And Flying Instructions
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SIG 4-STAR 60 Building And Flying Instructions

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Sig Mfg. Co., Inc....401-7 South Front Street....Montezuma, Iowa 50171
Introduction
In order for your 4-STAR 60 to fly as well as it was designed to, it must be carefully assembled. A model airplane that is not built
properly will not fly properly! Remember to work slowly and follow the instructions exactly. SIG, as the kit manufacturer, can
provide you with a proven aerodynamic design, quality materials, and detailed instructions, but ultimately the flyability of your
finished model depends on how well YOU put it all together.

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Summary of Contents for SIG 4-STAR 60

  • Page 1 Introduction In order for your 4-STAR 60 to fly as well as it was designed to, it must be carefully assembled. A model airplane that is not built properly will not fly properly! Remember to work slowly and follow the instructions exactly. SIG, as the kit manufacturer, can provide you with a proven aerodynamic design, quality materials, and detailed instructions, but ultimately the flyability of your finished model depends on how well YOU put it all together.
  • Page 2 About The Wood In The Kit We strive to supply good quality materials in all SIG kits. However, wood is a highly variable material (unlike man-made plastic or metal), so every single wood part in a kit will probably not have flawless appearance. Often things that look like an imperfection are actually quite acceptable when you consider the function the part will serve.
  • Page 3 Hardware Continued 2 4-40 Steel RC Links 2 4-40 Solder Clevis (Aileron) 2 2-56 Steel RC Links (Rudder and Elev.) 2 2-56 Solder Clevis (Rudder and (Aileron) Elev.) 2 3-1/2" Glass Filed Motor 2 Assembly Push rod Mounts Connectors (Throttle Pushrod) Miscellaneous 1 Clear Molded Canopy...
  • Page 4 Additional Components Needed The following items are not supplied in this kit but are needed to complete the 4-STAR 60. Because of the wide variety of brands available and the influence of personal preferences, the choice of these items is left to the builder. All of these items are available from your local hobby shop.
  • Page 5 However, if you want to get your 4-STAR 60 into the air as quickly as possible, we recommend that you use CA glue for the majority of the assembly of this kit.

  • Page 6: How To Use These Instructions

    Stabilizer, and Fin - which will be assembled directly on top of the plans. The plans also show how we would install a typical radio and engine in the 4-STAR 60. By referring to the examples shown on the plan, you should be able to properly install your radio and engine, even if they are not exactly the same as what is shown on the plan.
  • Page 7 SIG CA DEBONDER - A special chemical that softens and loosens dried CA glue so you can un-stick things you didn't mean to glue together - like your fingers! Apply DEBONDER to the area and wait for the glue to soften. Don't rush it! It may take 20 to 30 seconds of soaking to get your fingers back apart.

  • Page 8: Wing Construction

    • DEBONDER FOR CLEANUP - After you've completed final assembly of a model finished with iron-on plastic film covering, clean up any CA glue smears with a rag wet with DEBONDER. The DEBONDER won't harm the plastic film. CAUTION: Do not use DEBONDER on painted models, decals, or canopies - it may dissolve or mark them! •...
  • Page 9 Cut the top center piece that fits between the trailing edge sheet and the rear spar. Trim and sand the sheet to fit and glue it in place. SIG-BOND is recommended for gluing all of the center sheets to the ribs and spars as it is easier to sand the joints smooth.

  • Page 10: Joining The Wing Panels

    Use epoxy (either SIG 5-MINUTE or SLOW-CURE) to join the two wing panels. Apply glue generously to the end ribs and the dihedral brace. Work some glue into the slot in each wing root.

  • Page 11: Aileron Servo Installation

    13. 2" wide fiberglass tape can be applied to the wing center joint (top and bottom) using the following method: a. Cut the tape to length - one piece from trailing edge, around the leading edge and back to the trailing edge. b.
  • Page 12 a. Mount one hatch/servo assembly in the wing. Using the plan as a guide make an aileron pushrod from a 4-40 x8" threaded rod, a 4-40 solder clevis, and a 4-40 threaded clevis. The actual length of the pushrod may vary slightly based on the shape and position of the aileron servo.

  • Page 13: Fuselage Construction

    22. Using three 6-32 x1/2" mounting bolts and 6-32 blind nuts, bolt the aluminum gear to the landing gear plate until the prongs of the blind nuts are in the plywood and holding. Remove the gear and seat the blind nuts with a hammer. Spread SIG KWIK-SET epoxy glue over the blind nuts to hold them in place.
  • Page 14 Fuselage Construction a. Tape the fuselage plans to the work bench and cover with waxed paper. b. The fuselage sides are assembled from two laser cut pieces. Align the fuselage front and rear pieces directly over the plan, check the fit of the parts, adjust if necessary and apply MEDIUM CA to the splice joint. Join another set of pieces for the other fuselage side.
  • Page 15 NOTE: The hole in FBF is provided to serve as an oil drain hole as well as a convenient place to route the vent line from the fuel tank and/or the breather line from the crankcase of a four-stroke engine. a.

  • Page 16: Mounting The Wing To The Fuselage

    a. Locate the two .270 o. d. x 36" nylon outer push rod tubes (black). Roughen the last 4" on both ends of each outer tube with sandpaper to aid glue adhesion. b. Slide the outer push rod tubes forward through the pushrod exit slots in the fuselage sides and the holes in the formers.

  • Page 17: Stabilizer And Elevator

    Apply THICK CA or SIG-BOND to one side of the stabilizer frame, place it over the stabilizer skin, press in place and immediately pin the assembly down to the building board to keep it flat while the glue cures.

  • Page 18: Fin And Rudder

    Sand both sides the fin frame to smooth out the glue joints. Also sand the ends of the leading and trailing edges. b. Apply THICK CA or SIG-BOND to one side of the fin frame, place it over the fin skin, press in place and immediately pin the assembly down to the building board to keep it flat while the glue cures.
  • Page 19 Sand and wipe clean the top of the tailwheel wire and glue it in the bottom of the rudder with SIG KWIK-SET epoxy. Tape the nylon tailwheel bracket to the fuselage to maintain alignment until the glue cures.

  • Page 20: Surface Preparation

    Finish off the engine area with a few coats of colored SIG SUPERCOAT Dope.
  • Page 21 - even the edges of the wing ribs. If dope is going to be used for the entire finish, apply SIG LITE-COAT (low-shrink butyrate dope) for the first two coats. If enamels or epoxy colors are going to be used, apply SIG NITRATE dope for the first two coats.
  • Page 22 Complete assembly of the model before applying the color coats to the model. The best results can usually be obtained by applying the color coats of dope with spray equipment. Thin the dope for spraying by mixing in an equal amount of SIG SUPERCOAT DOPE THINNER or SIG RETARDER.

  • Page 23: Engine And Fuel Tank Installation

    Like most SIG kits, the fuel tank in this model is installed from the rear of the fuel tank compartment rather than through a removable hatch.
  • Page 24 a. Cut two 2-56 x10" threaded rods to an overall length that is equal to the distance from the rudder and elevator servo arms to the end of the black tube. Solder a 2- 56 solder clevis to the smooth end of each rod.
  • Page 25 Flying The Four-Star 60 is a fun aircraft to fly, but it is not a basic trainer. If you have little or no R/C flying experience, SIG strongly suggests that you get an experienced pilot to help you fly your model until you're comfortable with the controls.
  • Page 26 © Copyright SIG Mfg. Co ., Inc. SIG MFG. CO., INC....Montezuma, Iowa 50171-0520...

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