GREAT PLANES F-15 EAGLE Instruction Book
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GREAT PLANES F-15 EAGLE Instruction Book

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(Armament package sold separately)
Great Planes Model Manufacturing Co., Inc. guarantees this kit to be free from defects in both
material and workmanship at the date of purchase. This warranty does not cover any component parts
damaged by use or modification. In no case shall Great Planes' liability exceed the original cost of the
purchased kit. Further, Great Planes reserves the right to change or modify this warranty without notice.
In that Great Planes has no control over the final assembly or material used for final assembly, no
liability shall be assumed nor accepted for any damage resulting from the use by the user of the final user-
assembled product.
By the act of using the user-assembled product the user accepts all resulting
liability.
If the buyer is not prepared to accept the liability associated with the use of this product, he
is advised to immediately return this kit in new and unused condition to the place of purchase for a
full refund.
READ THROUGH THIS INSTRUCTION BOOK FIRST.
IT CONTAINS IMPORTANT INSTRUCTIONS AND
WARNINGS CONCERNING THE ASSEMBLY AND
USE OF THIS MODEL.
WARRANTY
Entire Contents c 1993, Hobbico, Inc
P.O BOX 788
URBANA ILLINOIS 61801
217398-8970
F154P03
V1.0

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Summary of Contents for GREAT PLANES F-15 EAGLE

  • Page 1 This warranty does not cover any component parts damaged by use or modification. In no case shall Great Planes' liability exceed the original cost of the purchased kit. Further, Great Planes reserves the right to change or modify this warranty without notice.
  • Page 2 LAST MINUTE ADDITIONS Staple this inside your book In step 5 on page 24 and in step 3 on page 40, we have provided a slightly different style of nylon torque rod horn than shown. You will need to drill these horns with a 7/64" drill and tap them using the 6-32 thread-cutting screw provided.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS INTRODUCTION..........3 DECALS AND TRIM........46 PRECAUTIONS........... 3 WING SEATING.......... 47 OTHER ITEMS REQUIRED ......4 RE-INSTALL ENGINE & RADIO ....47 SUPPLIES AND TOOLS NEEDED....4 CONTROL SURFACE THROWS....47 DECISIONS YOU MUST MAKE NOW..5 BALANCE YOUR MODEL ......

  • Page 4: Introduction

    This is normal and is caused This is not a beginner's airplane! While the by the plans expanding and shrinking with the F-15 Eagle is not hard to build and flies great, we changing moisture content in the air Do not must discourage you from selecting this kit as your modify the parts to fit the plan.

  • Page 5: Other Items Required

    D Drill Bits 1/16", 5/64", 7/64", 1/8", 5/32", 3/16", (HCAQ3750) recommended) 13/64", 1/4" and 5/16" D 2-3/4" Main Wheels (Great Planes GPMQ4204 D Sealing Iron (Hobbico or Top Flite recommended) recommended) See page 5 D Heat Gun (Hobbico or Top Flite recommended) D 2-1/4"...

  • Page 6: Decisions You Must Make Now

    2" nose wheel. and therefore are not recommended. This kit includes a Great Planes For grass fields, larger wheels will be EM4070 adjustable engine mount (or similar required, such as 2-3/4" main wheels and a mount) that will fit most .40 - .61 (2-Cycle)

  • Page 7: Die-Cut Parts Drawing

    DIE-CUT PATTERNS...

  • Page 8: Tail Feathers

    TAIL FEATHERS BUILD THE FIN AND RUDDER Note: The construction sequence that follows does not require building over plans. w i l l however, occasionally need to refer to the plans. D D 3. Cut the 1/4" sq. x 7-7/8" basswood stick (F154R04) in half to make two fin tips approximately 3-7/8"...

  • Page 9: Build The Stab. And Elevator

    D D 6. Using a sanding block and coarse (50 D D 2. Test fit the 1/4" balsa middle stab or 80-grit) sandpaper, sand both sides of the piece (F154S02) in place. Sand it if necessary to rudder to a taper (see cross-section on plans). achieve a good fit and glue it in place.

  • Page 10: Temporarily Install Hinges And Torque Rods

    A. Begin by carefully cutting a very shallow D D 5. Use a sanding block with medium slit at the hinge location. The first cut is to (150) grit sandpaper to sand the edges and both establish your cut in the right place, so sides of the stab smooth.

  • Page 11: Fuselage Assembly

    and 2" long, from the border of a die-cut 1/8" sheet. Glue this piece to the inside of the stab tip. Sand it to the contour of the stab as shown in the photo. D 9. Trial fit all these parts together using the torque rods and hinges.
  • Page 12 D D 3. Position a die-cut 3/32" balsa upper fuse side doubler (F154F08) near the top of the fuse side so it fits against the lower fuse doubler. Note that the aft portion of this doubler is recessed 1/8" below the top of the fuse side to allow for the cockpit bottom.
  • Page 13 D 8. Securely glue die-cut 1/8" ply former F3B to former F3A (F154F15). Align it with the hole D 11. Flip former F2 over and drill a 5/64" hole at and the tabs in F3A as shown in the photo. Notice each of the four nose gear bearing punch marks.
  • Page 14 3/8" above the bottom of the firewall and centered side to side. D 17. If you are using the supplied Great Planes Adjustable Engine Mount (EM4070), drill a 5/32" hole at each of the four punch marks on the face of D 14.
  • Page 15 fuse bottom. The firewall should be positioned against the fuse doublers to properly set the engine down thrust. Apply thin CA along the fuse side/forward fuse bottom joint. D 22. Pull the fuse sides up tight against the top portion of former F3 and securely glue them in place.
  • Page 16 as shown in the photo. Make sure the bottom of the former is flush with the bottom of both the fuse side and the turbine side. D 25. Glue a die-cut 3/32" balsa turbine doubler D 28. Install the other turbine side and front (F154F10) to each turbine side.
  • Page 17 D 31. Glue the four die-cut 1/8" balsa turbine side landing gear doublers (F154F03) to the D 34. Cut eight 7-1/2" long fin and stab braces inside of each turbine side as shown in the photo. from the two 1/8" x 1/2" x 30" balsa sticks (F154F29).
  • Page 18 triangle along the bottom edge of the turbines. Do D 39. Trim and sand the edges of the turbine not install triangle over the landing gear doublers. bottoms flush with the turbine sides and fronts. The triangle should extend all the way from the front to the aft ends of the turbine sides.

  • Page 19: Mount Engine And Install Servos

    (COCKPIT BOTTOM NOT SHOWN) D 2. Now you may use one of the following D 42. Temporarily install the die-cut 1/8" ply methods to attach your engine to the mount: cockpit bottom (F154F16) to hold the fuselage sides in position. Cut six 1-3/4" long pieces of turbine forward top sheeting from the 3/32"...
  • Page 20 Route the throttle pushrod outer tube from the the steering outer tube and glue it in place on the firewall to former F5. We used a Great Planes fuse bottom. Glue the steering outer tube to the Semi-Flexible Pushrod (GPMQ3714). Cut the...
  • Page 21 complete the assembly of the steering pushrod. We threaded the pushrod wire that came with the pushrod into the inner pushrod tube and then inserted the unthreaded end through the Quick Connector. D 11. Test fit the die-cut 1/8" ply cockpit bottom (F154F16) in place.
  • Page 22 sheeting to the firewall or dash past the top stringer If your tape is waterproof, you can wet the sheeting after the tape is applied to help the sheeting bend. D 14. Cut the 3/32" x 3 x 12" balsa sheet (F154F28) in half to make two 6"...

  • Page 23: Build The Nose Section

    BUILD THE NOSE SECTION D 1. From a scrap of 1/16" balsa, cut four small D 5. Sand a 1/4" balsa shaped nose side pieces and tack glue them to the die-cut 1/16" ply (F154F130) to fit on the left side of the nose (the spinner ring (F154F19) as shown, using a small side opposite the engine head) and glue it in place.

  • Page 24: Install The Receiver Battery

    Trim the right piece to fit around the needle valve. D 12. Remove the engine, mount and the throttle After the glue is cured, sand the top edges to a cable again. As you have probably noticed, the bevel so the remaining nose top will fit in the next nose sides and top are going to get quite thin in step.

  • Page 25: Glue The Stabs On

    D 2. Using the long piece of wood (aileron) D 2. Wrap the battery in at least 1/4" of latex foam rubber and secure the foam with tape. across the stabs as a guide, adjust the stabs until they are level with each other and the wing saddle (sight from behind the plane when doing this).

  • Page 26: Make Elevator Pushrod

    (METAL057) over the two wires. Slide the third wire (2-3/4" long) into the split coupler from the other direction and then attach the clevis to the elevator servo horn. Operate the elevators to make sure the formers do not interfere with the movement of the rods.

  • Page 27: Finish Up The Fuselage

    FINISH UP THE FUSELAGE D 1. If you are going to install a receiver antenna tube, now is a good time to do it. We used an extra inner pushrod tube and routed it along the inside of the left turbine and out the back of the fuselage.
  • Page 28 D 7. Glue the 1/8" x 3/8" x 3" ply hatch screw block (F154F33) onto the bottom of the aft fuse D 4. Glue the die-cut 1/8" balsa turbine tops top so approximately 5/16" of it is exposed through (F154F12) in place. Make sure the fin slots line up the hatch cutout.

  • Page 29: Wing

    D 10 Glue the 1/32" ply hatch tabs to the bottom D 13. Grind off any burrs on the ends of the main of the aft fuse top so they are centered between landing gear (WBNT186) and press the gear into the grooved LG block Cut the four nylon landing the marks you just made The tabs should extend gear straps (NYLON36) apart and position them...

  • Page 30: Build The Wing Panels

    D 1. Tape the wing panel plan to your flat work surface, and cover it with waxed paper (so you won't glue the wing to the plan!). NOTE: Do not cut the left and right wing half drawings apart. We recommend you build this wing in one piece.
  • Page 31 the LE so the 1/16" balsa LE sheeting (installed later) will fit flush with the LE. D 5. Position a #7 rib over the plan and raise the spar up off the work surface and into the rib notch. Use a 90 degree triangle to keep the rib perpendicular to the work surface and tack glue the rib to the spar.
  • Page 32 D 14. Twist the die-cut 1/8" balsa #2 ribs into place with their jig tabs against the work surface. Align the TE with the ribs and glue them in place. D 12. Glue the die-cut 1/8" ply wing tips (F154W06) in place against the LE'S and the #10 ribs.
  • Page 33 plate/#1 rib joint. Slide the bolt plate aft in its slot center spar (F154W09) in its notches. Cut the until it touches the TE brace. Align everything with ends off at an angle so it will fit neatly against the top wing spar.

  • Page 34: Install Wing Top Sheeting

    each 1/16" x 3" x 30" balsa wing sheet (F154W14). HINT: Use a hobby knife and cut a straight line using a metal straight edge. Flip the triangle over and glue it to the rest of the sheet as shown in the sketches above. D 21.
  • Page 35 the ribs and spars while the glue cures. It is important to keep the wing flat during this process D 6. Hold the sheeting tightly against the LE at as the LE sheeting will start to "lock" the wing a slight angle so it sits down on the LE of the ribs. together.

  • Page 36: Install The Bottom Wing Sheeting

    D 3. Cut the remaining 1/8" x 1/4" x 30" basswood center spar (F154W09) to fit as you did D 10. Sheet the opposite wing panel using the earlier on the top surface. Apply a bead of thick CA on the top surface of all the center spar shear same procedure outlined above.
  • Page 37 join to remove any high spots. Securely glue the remaining die-cut 1/32" ply spar joiner (F154F18) in place as shown in the photo. D 6. Install the two remaining LE sheets using the same procedure outlined in steps 5 - 10 on pages 33 to 35.
  • Page 38 D 12. Remove the wing and enlarge the hole in the wing only to 5/16". Flatten out or cut off the D 14. Glue four more 1/16" balsa wing center three "teeth" on the 1/4" blind nut (NUTS020). If sheets in place behind the first one. The last one you have a 1/4-20 tap, run it through the blind nut will have to be cut to fit.

  • Page 39: Install The Aileron Torque Rods

    INSTALL THE AILERON TORQUE RODS D 17. Using the servo rails as a guide, cut a 1" wide rectangle in the center sheeting so you will know where the rails are. D 1. Measure to locate the middle of the grooved balsa center TE (F154W17) and make a perpendicular relief cut almost all the way through (within 1/16") with a razor saw.

  • Page 40: Assemble Ailerons

    D 4. Clean the torque rods and bearing tubes D 2. Draw an accurate centerline along the LE with alcohol. Slide the plastic bearings toward the of the tapered balsa ailerons and the wing TE. threaded end of the torque rods, then use a toothpick to apply a small amount of petroleum jelly to the ends of the plastic tubes (to help prevent glue from getting inside and locking up the...

  • Page 41: Install Aileron Servo

    servo rail you installed earlier Test fit your servo in place on the rails and cut out the top wing sheeting if needed to allow you to install the servo mounting screws Cut a notch in the sheeting for the servo wire CAUTION: Do not cut into the center...

  • Page 42: Finishing The Wing

    (F154W13) cut the cap strips to fit between the leading edge sheeting and the trailing edge sheeting and glue them in place over each rib. Do this for both sides of all the ribs. HINT - For easier positioning of the cap strips, first mark the location of the ribs on the LE and TE sheeting.

  • Page 43: Final Assembly

    place and adjust the bends as necessary. Try to FINAL ASSEMBLY keep the wires as straight as possible to prevent unnecessary control surface slop. MAKE RUDDER PUSHRODS D 1. Temporarily install the fins in the fuselage and slide them all the way aft in their slots. Enlarge the notch at the base of the fin if necessary to allow the fins to seat flat against the stabs.

  • Page 44: Prepare The Canopy

    between the #3 ribs and the turbine sides. If this is You may tint your canopy by immersing the case, glue the die-cut 1/8" balsa wing spacers it in a concentrated mixture of Rit Dye (F154W02) to the inside of both #3 ribs If the gap and hot tap water.

  • Page 45: Balance The Airplane Laterally

    stab This can weaken the stab to the point where BALANCE THE AIRPLANE it may fail in flight' We highly recommend using LATERALLY the Top Flite "SmartCut™ " MonoKote trim tool when covering your plane It allows you to SPECIAL NOTE: Do not confuse this effortlessly achieve smooth consistent cuts and procedure with "checking the C.G."...

  • Page 46: Glue Tail Feather Hinges

    seat parts (two sets included, but only one is Using a small stick, work a generous needed) found on the die-cut sheets F154F03, amount of 30 minute epoxy into the aileron torque F154F06 and F154F13 Sand one set smooth and rod holes Push the ailerons and aileron hinges round off the edges of the parts...

  • Page 47: Glue Canopy In Place

    D 6. Remove the wing and mask off the turtle deck so you can paint it. Mask off the canopy D 3. When the glue has completely cured, use a using the molded-in trim line as a guide. Great Planes Flex Mask (GPMR1000) works great for razor saw and/or a hobby knife to carefully cut the this.

  • Page 48: Wing Seating

    Due to the maneuverability of this the plane as shown on the plans NOTE: The model and the high control surface Great Planes Switch/Charge Mount is perfect for throws that it will handle, it might be a this application. good idea to use exponential type...

  • Page 49: Final Hookups And Checks

    (CG), and is centered where the main spar meets FINAL HOOKUPS AND CHECKS rib #5 This is the balance point at which your model should balance for your first flights. Later, you may wish to experiment by shifting the balance RADIO SET-UP up to 1/2"...

  • Page 50: Pre-Flight

    grasp the wing at the tip and twist it slightly, while they are supposed to The engine operation must reheating the covering material Keep checking, also be checked and the engine "broken in" on the twisting and reheating until the wing twist is ground by running the engine for at least two tanks removed NOTE: If you have corrected a wing...

  • Page 51: Ama Safety Code

    Do not throw anything into the prop of a FLYING running engine. AMA SAFETY CODE The Great Planes F-15 is a great flying sport scale airplane that flies smoothly and predictably, yet is highly maneuverable It does not have the...

  • Page 52: Landing

    GOOD LUCK AND GREAT FLYING! LANDING: When it's time to land, do a couple of slow fly-bys at a safe altitude and get familiar with SEE THE FULL LINE OF GREAT PLANES the plane's slow flying characteristics. The AIRPLANES AT YOUR HOBBY DEALER.

  • Page 53: 2-View Drawing

    TWO-VIEW DIAGRAM...

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