Dynaflite butterfly Instruction Manual
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Dynaflite butterfly Instruction Manual

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WARRANTY
®
Great Planes
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, return this kit immediately in new and
unused condition to the place of purchase.
READ THROUGH THIS MANUAL BEFORE STARTING CONSTRUCTION. IT CONTAINS
IMPORTANT INSTRUCTIONS AND WARNINGS CONCERNING THE ASSEMBLY AND
USE OF THIS MODEL.
®
Entire Contents © 2010 Hobbico,

INSTRUCTION MANUAL

Inc.
™
Champaign, Illinois
airsupport@greatplanes.com
®
(217) 398-8970
GPMA0090 Mnl 2.0

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  • Page 1: Instruction Manual

    INSTRUCTION MANUAL WARRANTY ® Great Planes 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.

  • Page 2: Table Of Contents

    Table of Contents Introduction ......2 Align The Stab & Fin....26 Precautions.

  • Page 3: Precautions

    2. You must take time to build straight, true and Protect Your Model, Yourself strong. and Others... Follow This 3. You must install all R/C and other components Important Safety Precaution so that the model operates properly on the ground and in the air.

  • Page 4: Setting Up Shop

    ❍ O.S. ® 10LA (OSMG0011) or O.S. 15LA Required Supplies and Tools (OSMG0016) These are the building tools and adhesives that ❍ Engine Mount (Hayes 006-AS15 short you will need to build your Butterfl y. mount for O.S. LA engines) HAYG0006 ™...

  • Page 5: Building Notes

    ❍ 6-Minute Pro 12’ Roll of adhesive-backed sandpaper, ™ Epoxy (GPMR6045) ❍ Trim Seal Tool 80-grit (GPMR6180) ™ (TOPR2200) 150-grit (GPMR6183) ❍ Heat Gun (TOPR2000) 220-grit (GPMR6185) ❍ Straightedge (Fourmost Non-Slip, Assortment pack of 5-1/2" strips (GPMR6189) FORR2149) ❍ Denatured or Isopropyl Alcohol (for epoxy clean-up) Building Notes ❍...

  • Page 6: Types Of Wood

    other conditions that require one or the other types Types Of Wood of CA. For the Butterfl y all you really need is thin and medium CA. CA Accelerator is a chemical that you can spray over uncured CA to make it cure immediately. A mist spray of accelerator will do the job.

  • Page 7: Build The Rudder, Stab & Elevator

    ❏ 2. The TE, then the bottom from a 1/4" x 1/2" accurately cut small balsa sticks (such as the ones used in the tail surfaces) with a single-edge razor x 12" balsa stick. blade rather than a hobby knife. ❏...

  • Page 8: Finish The Tail Surfaces

    Elevator Building Sequence Refer to this photo while you build the elevator. ❏ 1. The LEs as shown on the plan, cut from a 1/4" A note about sanding x 3/8" x 36" balsa stick. Use a hobby knife to cut “built-up”...

  • Page 9: Build The Wing

    ❏ 6. Test join (remember, this means no glue) the elevator to the stab and the rudder to the fi n with the hinges. Adjust the width of the hinge slots if necessary. ❏ 3. Lay the stabilizer on your building table. Use thin card stock or business cards to raise the stab so you can mark the hinge slots in the center of the TE at the hinge locations.
  • Page 10 ❏ ❏ 4. Position rib W-3 on the bottom spar and pin it to the building board over its location on the plan. Position the six W-4s of the inner wing panel on the spar and pin them to the building board as well. Note: Substitute the third W-4 rib in from the tip with a W-3.
  • Page 11 ❏ ❏ 7. Remove the T-pins in rib W-3. Use a 90- ❏ ❏ 10. Use medium or thin CA to glue the sheets degree triangle to hold W-3 perpendicular to the building board, then glue it to the spar, LE and TE in position so the outer edges align with the outer with medium or thin CA.
  • Page 12 ❏ ❏ 17. Make two gussets from the 3/16" x 3/4" x ❏ ❏ 15. Slide the composite wing joiner tube 12" balsa sheet, then glue them in position. If you into the holes of W-1, W-2 and W-3. The holes in have one, use a small building triangle to accurately the ribs are slightly oversize so you can accurately cut the gussets.

  • Page 13: Build The Outer Wing Panels

    Note: Leave the leading edge at least 1/16" high Area to Trim Off in front of ribs W-1, 2 and 3 to accommodate the top sheeting. You will fi nal sand the LE after you join the inner panels to the outer panels and glue the top sheeting in position.
  • Page 14 ❏ ❏ 13. Remove the T-pins, then lift the panel ❏ ❏ 6. Remove the T-pins from rib W-4. Use the from the plan. Use a razor saw to cut the ends of wing tip panel gauge to set W-4 at the correct the spars, LE and TE so they extend past W-15 by angle and glue it to the TE, bottom spar and LE.

  • Page 15: Join The Inner Panels

    ❏ 3. Without any glue, temporarily join both inner ❏ ❏ 16. Roughly carve the wing tip with a razor wing panels with the joiner tubes and the joiner plane or a hobby knife. Final shape the tip and blend rod.
  • Page 16 ❏ 10. Cut both of the TEs as shown on the plan. Cut the 1/8" x 4" hardwood dowel into two pieces, ❏ 7. Carefully lift the wing from your building board then test fi t and glue the dowels to the TEs of both so you do not break the spot-glued joints, then place wing panels with medium CA.

  • Page 17: Join The Outer & Inner Wing Panels

    1/16" Holes ❏ ❏ 13. Glue a piece of 1/8" leftover balsa to rib W-2 to support the turbulator spars. Trim the ends of the spars so they are even with the end of the panel at rib W-4. ❏ 14. Glue the turbulator spars in the left wing ❏...

  • Page 18: Finish The Wing

    Tip: How To Final Shape The LEs D. After you roughly shape the LE’s by carving The Butterfly is a motor glider not a high (or using the razor plane), fi nal shape the LE’s performance aerobatic model – it’s named the with a bar sander and 220-grit sandpaper.

  • Page 19: Build The Fuselage

    covered with wax paper to make sure the pieces Build the Fuselage align. Use a bar sander and 150-grit sandpaper to sand the two sides so they are fl at and even. Prepare the Fuse Sides All the parts used during fuselage construction are die-cut 1/8"...
  • Page 20 ❏ 12. Glue F-5 to F-4 with epoxy so the edges of F-5 align with the lines on the back of F-4 and the top edges of F-4 and F-5 are even. From now on ❏ 9. Use the above die drawing of the fuselage parts this assembly will be referred to as the “fi...

  • Page 21: Join The Fuselage Sides

    down over the top view of the fuselage plan. Make sure the fuselage sides fully contact your fl at building table and the formers and sides align with the plan. Adjust the notches in the left fuse side if necessary, then use medium CA to glue the left side to the formers.

  • Page 22: Sheet The Fuse Bottom

    ❏ 6. Remove as many T-pins as possible, then Sheet the Fuse Bottom carefully lift the fuselage off your building board and remove the remaining T-pins. ❏ 7. Sand the ply and balsa fuselage bottom even with the fuse sides. ❏...
  • Page 23 ❏ 2. Cut two 36" outer pushrod guide tubes to a ❏ 5. Position the guide tubes so approximately 1/2" length of 24". Use 150-grit sandpaper to carefully protrudes from the slots at the rear of the fuselage. (so you do not snap them in two) roughen the Use medium CA to glue only the aft support in outside of the tubes so glue will stick to them.
  • Page 24 ❏ 11. Cut the cross-grain aft top fuselage sheeting from the 1/16" x 2" x 24" balsa sheet and the remainder of the 1/16" balsa sheet you ❏ 16. See the information about fuel tanks that used for the bottom of the fuse. Position and glue follows, then test fi...
  • Page 25 B. Generally, all sport models require only two fuel lines: one that goes to the top of the tank for pressure or a vent and another for fuel pick- up. Some models use a third line for a fuel fi ller valve but this is not required on your Butterfl...

  • Page 26: Install The Servos

    photo (not on the plan). The one-arm servo horns shown in the photo are cut from six-arm servo horns. The throttle servo arm has been shortened by “cutting off the outer hole.” Drill 1/16" holes in the servo rails, then mount the servos to the rails with the screws included with your servos.

  • Page 27: Align The Fin

    ❏ 3. Accurately mark the center of the fuselage stab. This line indicates where you should apply the covering “up to” and apply glue when it is time top where the LE of the stab contacts the top to glue the stab to the fuse. sheeting.

  • Page 28: Covering

    scratches and imperfect glue joints that may show through the covering with HobbyLite fi ller. ❏ 4. Use medium CA to glue the die-cut 1/8" plywood tail skid and balsa triangle reinforcements to the bottom of the fuselage or glue the skid in position after you cover the fuselage.
  • Page 29 base color. Try just a single color base (usually a Never cut the covering after you iron it to the lighter color such as white or yellow) with perhaps wood except near the tips. Modelers who do a single stripe, your AMA number or some stick-on this may weaken the structure which could cause graphics.
  • Page 30 the fi n reinforcement onto the covering, then take the covering off the stab and cut out that portion of the covering. This will allow you to glue the fi n reinforcements directly to the bare wood and avoid cutting the covering directly on the wood after you iron it down.

  • Page 31: Join The Tail Surfaces

    Join the Tail Surfaces Join the Stab, Fin and Fuse ❏ 1. Apply a fi lm of 30-minute epoxy to the stab and fuselage where they contact each other, then position the stab on the fuselage. Use the techniques described earlier (in Align The Stab) to confi...

  • Page 32: Hinge The Control Surfaces

    done with a high-speed tool such as a powered hand tool. If you use a drill, remove slivers of balsa wood from the hinge slots with a hobby knife after you drill the holes. Temporary pin to keep hinge centered ❏...

  • Page 33: Fuelproofi Ng

    Fuelproofing Fuelproof areas that will be exposed to raw fuel or exhaust residue. These include the fi rewall, the entire fuel tank compartment, the underside of the hatch and inside the fuselage around the wing saddle area (the insides of the “windows” and cabin sides).
  • Page 34 1/16" FasLink Servo Horn 2-56 (.074") Pushrod Wire ❏ ❏ 9. Glue the forward pushrod guide tube support to F-7, then glue the pushrod guide tubes to the support with medium or thin CA. ❏ 10. Install the engine mount on the fi rewall. Attach the engine to the mount.

  • Page 35: Mount The Landing Gear

    ❏ 14. Install the fuel tank and connect the fuel tubes. ❏ 3. Cut the die-cut 1/8" plywood top landing gear plate in half, then mark the location where ❏ 15. Install the fuel tank hatch with the #2 x 3/8" the landing gear wire contacts both plates.

  • Page 36: Mount The Wing

    hook from an unused servo arm as shown in the sketch. Never shorten the antenna wire. Mount the Wing ❏ 1. Apply 1/16" thick Great Planes Single-Sided Foam Tape (GPMQ4422) to the wing saddle of the fuselage. ❏ 2. Poke a hole through the covering where you drilled the 1/16"...

  • Page 37: Set The Control Throws

    battery pack aft. If possible arrange the battery control throw, move the clevis on the control horn pack and receiver to achieve balance but make outward and/or move the pushrod on the servo arm sure they remain secure in the fuselage so they inward.

  • Page 38: At The Flying Site

    Gather Your Tools Store model fuel in a safe place away from high heat, sparks or fl ames. Do not smoke near the Assemble a simple fl ight kit (a shoe box is fi ne engine or fuel as it is very fl ammable. Engine to start with) which should include a 1-1/2 volt exhaust gives off a great deal of deadly carbon starting battery and glow plug clip (or ni-starter),...

  • Page 39: Takeoff

    fi eld. Ask your hobby dealer or the AMA if there runway or not. Just hand launch the Butterfl y into is a club in your area and join it (the address and the wind. If you are at a model fl ying fi eld check telephone number for the AMA is listed on page 3 with veteran club members to see if this is an of this instruction book).

  • Page 40: Flight

    the engine is for gaining altitude to get your Butterfl y Flight high enough to let you fl y it, react and learn how to Allow the Butterfl y to climb as gently or steeply as correct mistakes and guide it through the air. Continue required and you are comfortable with, then execute fl...

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