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SIG MID-STAR 40 Скачать руководство пользователя страница 11

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33.

a. The die-cut Lite-Ply former F-2D has a dimple in the center to mark the correct position of the hole for the wing hold-

down dowel. Glue F-2D to the front of die-cut Lite-Ply former F-2 so that the dimple remains showing.

b. Carefully drill at the dimple with a 1/4" drill bit. Use a chunk of hardwood behind the former to keep the wood from

splintering as you drill through.

34.

Glue the die-cut fuselage doublers to the die-cut fuselage sides using slow CA or Kwik-Set epoxy, and allow to dry. Be sure
to make one left side and one right side!

Basic Fuselage Construction

35.

a. Tape or rubber band the fuselage sides together at the rear.
b. Working from the rear forward, slip all the fuselage formers (F-6 thru F-1) into place. Put a rubber band around the

fuselage at each former location to hold it tightly together.

c. Slide the die-cut Lite-Ply part FBR (fuselage bottom, rear) under the rubber bands until it snaps into its proper

location between the fuselage sides.

d. Slide the die-cut Lite-Ply part FTR (fuselage top, rear) into place under the rubber bands.

NOTE: The "Tee-Lock" tabs on the formers, FBR, and FTR are made oversized to protrude past the fuselage sides. These
will be sanded off after the fuselage has been completely assembled.

36.

a. Place the fuselage over the top view on the plans to check its alignment. Correct if necessary by twisting gently

before proceeding. View the fuselage directly from the rear to be certain that the joint where the fuselage sides meet
is square with the fuselage bottom.

b. Carefully glue all of the parts permanently in place, preferably working from inside of the fuselage, using medium CA.

Start with small patches of glue in the corners, checking the fuselage alignment as you go. Then go back and glue all
of the joints on both sides. Leave the rubber bands and tape in place until all of the glue has dried completely.

37.

Glue the die-cut Lite-Ply cockpit former #2 (CF-2) on top of FTR using the 30 deg. side of the Dual Tool to get the correct
angle. Don't bevel the bottom edge of CF-2, and make certain that it is flush with the front edge of FTR.

38.

a. Glue the two 1/4" sq. x 18" special shaped balsa stringers into the notches

on the formers.

b. When dry, trim off the ends of the stringers flush with the front face of CF-2

and the rear face of F-6.

NOTE:If you are building the optional taildragger version of the MID-STAR-40,
skip step 39 and proceed with step 40. If you are building the standard tricycle
gear version, perform step 39, skip step 40, and proceed to step 41.

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Содержание MID-STAR 40

Страница 1: ...as no leading edge sheeting which helps speed construction The simple pre cut balsa tail parts also save time The model can be completely covered with iron on film with only a small amount of painting required One important decision that you will need to make before building is whether to use tricycle landing gear on your MID STAR 40 or make it a taildragger New pilots who are transitioning from a...

Страница 2: ...ing the plywood fuselage parts The extra thickness allows the glue to fill small gaps but it dries a little slower than thin CA If you want only one type of CA use medium thickness Sig CA Slow This thickest formula is good for filing large gaps and building up strong fillets at joints requiring extra strength It also dries slow enough to allow you to apply it to one part and position it on another...

Страница 3: ...n you can start on or proceed with another part Work can even go forward on several sections of the same assembly at the same time such as the front and rear sections of the fuselage Keep in mind that the number sequence used in these instructions was chosen as the best way to explain the building of each major component and is not intended to be followed in exact one two three fashion Start on th...

Страница 4: ...g center and tailwheel wire 2 6 3 4 x27 3 Color Decal 1 Full Size Printed Plan 1 Photo Illustrated Instruction Booklet 1 The Basics Of Radio Control Booklet Hardware 4 2 x1 2 Sheet Metal Screws for control horns 2 4 40 x3 8 Flat Head Mounting Bolts for hatch 1 4 40 x 3 8 Mounting Bolt for canopy hold down 8 4 40 x1 2 Mounting Bolts for nose gear bearing and landing gear 4 6 32 x3 4 Mounting Bolts ...

Страница 5: ... piles to avoid confusion during building WING CONSTRUCTION Before beginning wing construction carefully splice together the Left Wing Panel plans so that the X and Y indicators meet Use a straightedge to double check the alignment of the plans before taping them at the seam Tape or pin the plans to your building board and protect them with a layer of waxed paper Build each wing half separately 1 ...

Страница 6: ... step Otherwise you may find it difficult to remove your wing from the board later 6 Pieces for the top center sheeting should be cut from the 1 16 x 3 x 30 balsa provided in the kit Again Sig Bond is recommended for the front and rear edges of the sheeting to make it easier to sand the joints smooth Also use Sig Bond on the center W 1 rib The sheeting can be glued to the ribs on each end using CA...

Страница 7: ...tout guide 1 RCG 1 on the inboard W 1 wing rib The top of RCG 1 should be flush with the top of the center sheeting and the notches at the rear should fit around the main wing spars Trace the notches for the wing hold down dowel and the canopy hold down block with a sharp pencil c Remove the guide then measure and mark the cutout area on the top center sheeting using the dimension shown in the pho...

Страница 8: ...ng When dry trim BP flush with the bottom center sheeting 17 a The aileron torque rods have been pre bent so that the threaded portion leans rearward slightly inside the fuselage see the W 1 wing rib cross section on the plans That small angle will provide your MID STAR 40 with a bit of differential movement more up that down in the ailerons which makes for smoother rolling characteristics Prepare...

Страница 9: ...3M 77 b Position the tape on the wing center joint c Soak the tape with CA The spray adhesive simply holds the tape in place it won t affect the strength of the CA A second coat of CA will help to fill in the weave of the fiberglass resulting in a smoother surface Rub the second coat with your finger protected with plastic wrap keep it moving to smooth out the glue Use a fan to keep the CA fumes a...

Страница 10: ...hing aircraft lock nuts to fasten the engine to the mounts engine mounting bolts and nuts are not included in the kit Locate and mark the best spot on the firewall for the throttle pushrod to exit and line up with your engine s carburetor control arm Drill at the mark with a 9 64 drill bit Remove the engine and engine mounts NOTE If you are building the optional taildragger version of the MID STAR...

Страница 11: ...age sides These will be sanded off after the fuselage has been completely assembled 36 a Place the fuselage over the top view on the plans to check its alignment Correct if necessary by twisting gently before proceeding View the fuselage directly from the rear to be certain that the joint where the fuselage sides meet is square with the fuselage bottom b Carefully glue all of the parts permanently...

Страница 12: ...m as necessary to clear the blind nuts on the back of F 1 Apply slow CA to the braces and press them firmly in place c Install the die cut Lite Ply tank floor so that it is sealed on the fuselage doublers and against the back of F 1 then glue it in place 42 a Glue the 1 4 x1 x3 5 6 balsa nose brace to the top of the fuselage and F 1 b When dry hold the die cut 3 32 plywood hatch tongue in position...

Страница 13: ...serve as a wing hold down dowel Save the remaining piece for the canopy hold down dowel b Sharpen one end of the wing hold down dowel to a point keep the point symmetrical and centered With the hatch removed push the dowel into the hole in F 2 so that only the point sticks out into the wing opening Slide the wing into position making sure it is centered on the fuselage When you remove the wing the...

Страница 14: ...bolts 52 a The servos need to be mounted in the fuselage so that the nylon pushrods can be routed properly with the least amount of curvature Refer to Chapter 2 of The Basics Of Radio Control and the plans for information on where and how to mount the servos in the fuselage Start by cutting two 3 1 4 long servo rails from the supplied 3 8 sq basswood Use the servo tray provided with your radio to ...

Страница 15: ...nk compartment Mark the locations of the fuel lines on F 1 remove the fuel tank then drill holes through F 1 at the marks using a drill bit that s the same diameter as the fuel tubing you plan to use You should also redrill the holes for the throttle and nosewheel pushrods 9 64 dia since they were both probably covered up by the triangle braces installed in step 41 Canopy Installation 59 NOTE The ...

Страница 16: ...canopy b The canopy hold down screw will pass through the extended front flange Tape the canopy in place on the model and carefully mark the location of the hole for the canopy hold down screw Be certain that the hole will pass directly through the center of the canopy hold down block in the wing c Drill through the canopy flange and canopy hold down block at the same time with a 1 8 drill bit 65 ...

Страница 17: ...dge using the hinge line as a guide 70 The top of the fin or rudder may need sanding so that they line up when installed Temporarily pin or tape the stabilizer and fin on the back of the fuselage then tape the rudder to the fin so that its bottom edge is aligned with the fuselage bottom Remove the fin and rudder which are still taped together and sand the top edges until they match NOTE If you are...

Страница 18: ...ow access to needle valves carburettor adjusting screws etc When satisfied remove the engine and touch up the cutouts with some sandpaper Since it s too difficult to apply covering material inside the engine compartment it must be fuel proofed using several coats of clear dope or two coats of polyester glass resin sanded between coats Finish off the engine area with a few coats of colored Sig Supe...

Страница 19: ...iece of material extending it about 1 8 past the outside edges of the plates again to provide an area for overlap Cover the main portion of the wing starting with the bottom and then the top so that the seams will be on the bottom where they will be less visible The top covering should overlap the full width of the leading trailing edge Wait until both the top and bottom pieces of covering materia...

Страница 20: ...nutes the joint should be flexed to full deflection in each direction a couple of dozen times to reduce the stiffness Don t worry about shortening the life of the hinges as they are almost indestructible 76 The rudder is hinged in the same manner as above but it is easier to install AFTER the fin has been glued to the fuselage Cut slots for three hinges now 3 slots in the rudder two in the fin and...

Страница 21: ...n the inner nut will help keep the assembly from vibrating loose Once the wheels have been attached the landing gear assembly can be bolted to the fuselage using four 4 40 x 1 2 mounting bolts NOTE If you are building the optional taildragger version of the MID STAR 40 skip step 84 and proceed to step 85 If you are building the standard tricycle gear version perform step 84 skip step 85 and procee...

Страница 22: ...length of 3 1 2 measuring from the threaded end Install the threaded rod in the nylon tubing smooth end first so that approximately 1 2 of the threaded portion remains exposed The metal rod will help prevent the nylon tubing from buckling under flight loads Thread the R C link onto the end of the pushrod until the rudder is neutral then repeat the procedure for the elevator The aileron servo can b...

Страница 23: ...ing and using it that you would with a can of gasoline or a bottle of poison Remember that it is possible to lose control of a model airplane Do not fly in locations where the model may hit people or damage property if loss of control occurs Check your model and equipment regularly to insure it is in safe operating condition FLYING The MID STAR 40 is a fun aircraft to fly but it is not a basic tra...

Страница 24: ...g final approach Slow the model down during the entire approach by slowly feeding in up elevator Just before the model touches flare the landing by carefully feeding in more up elevator Hold the model just inches off the ground until your elevator stick is pulled all the way back The MID STAR 40 should settle in for a perfect nose high landing with a short rollout MODELER S TIP The canopy gives th...

Страница 25: ...pm Central Copyright SIG Mfg Co Inc SIG MFG CO INC Montezuma Iowa 50171 0520 LIMIT OF LIABILITY In use of our products Sig Mfg Co s only obligation shall be to replace such quantity of the product proven to be defective User shall determine the suitability of the product for his or her intended use and shall assume all risk and liability in connection therewith ...

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