TufFlight Tiger User Manual

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5376 Amalfi Drive, Clay, NY 13041 ww w.tufflight.com
The Toughest R/C Planes Ever!
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ig
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Wingspan: 30" Wing Area: 243 sq in Length: 44" Flying W eight: ~3lb depending on power system
Hello, and thanks for buying the Tiger -- an exciting sport electric ducted fan (EDF) powered plane offering great
performance and uncommon durability for the advanced R/C flyer .
Caution: The Tiger is a ver y fast plane capable of 90 mph+ speeds, and requir es car e in setup and operation.
Please obey safety rules for your motor and battery and flying site. It is assumed the builder and flyer have experience in high energy EDF power systems and flight and ar e familiar with high power lithium polymer battery installations before attempting to assemble and operate this plane.
Please read and understand the instructions before starting to build. We recommend joining the AMA and
following the AMA safety code. Call 1 (800) I- FLY-AMA for more details.
erer
er
erer
Fan: 70mm OD Radio: 3+ channels, elevon mix (delta wing) capability,
optional rudder
Servos: (2) Hitec HS 85 MG or equivalent
(1) thin servo if rudder desired (HS 125 MG)
We assume no responsibility for how you use your plane. That said, let's get started!
Items Included in kit:
Foam Parts:
EPP fuse blocks in shucks (Front, Rear , Middle) wing cores in shucks (right/left)
Wood / Plastic Parts:
3/16" balsa sheet (2) pine blocks 5 mil tail skin laminating plastic (flexible) 10 mil wing skin laminating plastic (stiff) 10 mil LE wrap laminating plastic (flexible) (1) 5 mil thrust tube sheet (1) 1/8" laser cut parts sheet (intake / nose parts) (2) molded nose halves (right/left) (1) 1/16" x 1-1/2'' x 9" clear plastic (1) 0.015" intake wrap plastic sheet (1) 0.040” intake "V" clear plastic material (1) Dixie cup tail cone
Rev 1.0
Hardware:
(1) 6-32 blind nut (3) 6-32 nylon screws (2 extra) (2) 1/8” x 5-1/2" elev axle wire (1) 1/8” ID x 4" brass elev axle tube (2) elev control horn tiller (2) 3mm x 5mm elev tiller screw (2) Sullivan metal clevis (1) 8" Sullivan yellow inner nyrod (2) push rods threaded 1 end (8) magnets (3) #64 rubber bands
This Instruction Manual
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Items needed to complete:
Equipment:
70mm fan/motor ~3300 mAH 4S to 6S LiPo battery ESC / BEC RX (2) mini/micro servos (HS 85 MG ideal)
(metal gear servos HIGHL Y recommend to
avoid stripped gears)
(1) optional rudder servo (HS 125 MG ideal) Battery/ESC connectors as desired
Adhesives:
thin and medium CA CA accelerator (kicker) Goop or Shoe Goo (any variety) Gorilla or “Sumo” glue (white/clear variety) Gorilla or Elmer’s “Nano” glue (amber variety) 3M77 Spray adhesive 15 or 30 minute epoxy masking tape scotch tape Balsa Rite (or nitrate dope)
Covering / Paint:
Ultracote
(1/4 roll and trim as desired for fuselage)
primer / filler / paint as desired suitable for plastic
nose, wing and tail surfaces lightweight spackle filler (Dap, Red Devil) microballoons filler
soldering iron solder soldering “jig” (ie, extra pair of hands) 3mm hex wrench straight / phillips screwdrivers standard pliers long nose pliers or forceps tweezers Z bend pliers wire cutters hammer vise weights / support blocks Drill with #25 (0.15”), 5/32”, 9/64”, 3/16” bits Dremel T ool w/ drum sander, cutof f wheel Dremel T ool router attachment atomizer water bottle petroleum jelly rubbing alcohol laquer thinner scotch brite pad acid brushes popsicle sticks chopsticks / bamboo skewers 1/2” and 1/4” dowels vacuum with long soft bristle attachment flat building table, at least 4 ft long
Helpful T ools:
40 grit sandpaper on block
(available at auto finishing stores
and Sears) 40, 80, 100, 200 grit sanding tools small rat tail file fine felt tip pen scissors curved “lexan cutting” scissors (for car bodies) 12” ruler/straight edge 4 foot long ruler/straight edge angle finder hobby knife utility knife scrap of sheet rock as a “cutting board” plastic wrap (Glad, Saran, etc.) heat gun covering iron
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Make tail parts using paper templates
You’ll need : centerfold template pages, pen,
scissors, hobby knife, razor saw, balsa sheet, medium CA, kicker, plastic wrap, 5 mil laminating film
(second longest piece)
Step 6: Cut out laminate pieces as shown.Step 1: Gather parts and tools
alcohol helps to remove pen marks
Step 2: Remove the centerfold templates from the manual.
Step 3: Cut out the elevator and vertical fin templates to the outer line as shown.
Use the layout diagrams on the templates to insure they all fit
Step 4: Trace around the templates onto the laminating film (shiny side).
Step 7: Wipe / clean off pen marks
Step 8: T rim the fin and elevator templates
to inner outline for balsa parts.
Use the layout diagrams on the templates to insure they all fit
Step 9: Trace around templates onto balsa sheet as shown
Be sure to note “right” and “left” halves (laminate has one adhesive side)
Step 5: Continue tracing out all elevator and vertical fin parts
Step 10: Continue for all balsa tail parts
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Step 1 1: Cut balsa pieces along lines as shown
Step 16: Connect these marks (repeat for both sides)
Step 12: Sand edges as needed where they join together for a nice fit.
Step 13: Apply CA to mating fin pieces as shown
Step 14: Press parts together and apply kicker
Step 17: Scribe a centerline around the entire perimeter of the fin.
The fragile thin TE will be protected by plastic laminations which extend beyond TE and adhere to themselves
Step 18: Sand the LE round and TE to a “knife” point
Note extreme taper with thickest point at 1/3 chordline
Step 19: Side view showing airfoil shape
These marks are for sanding guides later on
Step 15: Mark the vertical fin roughly 1/3 from the LE on tip and root
Apply laminating film to vertical fin
You’ll need : covering iron, iron thermometer,
balsa vertical fin, ruler, small scissors, vertical fin laminations(2)
Step 20: Gather parts and tools.
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Do NOT trim the TE edge yet!
Step 21: Preheat your iron to 250 deg F.
Give yourself at least 3/8” extra at the LE and center the piece otherwise.
Step 22: Iron the laminating film to the fin as shown starting from center outward.
Film will shrink only slightly but take care not to warp the part as you proceed
Step 23: Smooth out film to edges (do not wrap film around any edges yet)
Step 26: Trim the tip and root edges only flush with the balsa with scissors or knife.
Step 27: Revisit LE, and tip edges to iron them down tight as needed.
Leave the TE alone for now
Step 28: Repeat steps for other side of the fin lamination.
Step 24: Trim the LE so as to give 3/8” overlap
Step 25: Iron the LE around the front as shown to the other side.
Step 29: Now iron the TE laminations together so the glue sides meet well
This cools the edge while holding it straight against a flat surface
Step 30: T o get a nice sharp edge, apply a ruler to the TE immediately after iron
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Step 31: Check the fin for straightness- adjust with heat and slight pressure if necessary
Step 36: Carefully cut through the top skin along the line with knife as shown.
Using a finger as a “depth gauge” helps avoid cutting the other side
Step 32: Trim the TE leaving about 1/16” beyond the balsa.
OPTIONAL Rudder
You’ll need : pen, sharp hobby knife, ruler,
medium CA, sanding block (100 grit)
Step 33: Gather parts and tools if rudder control desired.
Step 34: Using fin template, mark the location of the rudder as shown.
Step 37: Carefully extend cut into balsa being careful NOT to touch bottom lamination
It’s ok if the balsa breaks unevenly-­we’ll fix that later.
Step 38: When you’ve cut deep enough, flex the rudder to snap it free.
Step 39: Now scribe another line about 3/ 16” toward the LE from the first line.
Step 35: Scribe a line on one side of the rudder connecting the marks.
Step 40: Cut away the lamination skin strip as shown.
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Step 41: Fold the hinge all the way back on itself as shown.
Be careful NOT to sand through skin hinge!
Just sand the balsa and an angle
Step 46: Bend the wire over in a vise at the 1” mark.
Step 42: Carefully sand away the balsa to give relief to the rudder motion.
After glue cures, flex and sand as needed to free the hinge.
Step 43: Apply medium CA to the hinge area and wipe clean. Set aside to cure.
Make elevators (stabilators)
You’ll need : 1/8” wire axles, hammer, vise, angle finder, sanding block, pen, pencil,
covering iron, iron thermometer, balsa elevators, ruler, Dremel tool gorilla glue, water, plastic wrap, weights, elevator laminations (4)
Step 44: Gather parts and tools.
Step 47: Bend to right angle as shown. Repeat
for other wire.
Do for other wire also which should be a mirror image when finished.
Step 48: Using elevator template, mark location of second bend as shown.
Step 49: Place wires in vise as shown at marks.
Step 45: Measure axle wire 1” from end
Step 50: Bend both wires 10 degrees
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DO NOT laminate them yet!
Just get them sanded nicely.
Step 51: Now prepare balsa elevators as you did for the rudder steps.
Step 52: Using the elevator templates, poke through to the wood pieces to locate axles
Step 53: Align axles to your marks and trace location as shown.
Step 56: Close-up showing axle groove taking shape
Step 57: T est fit the axles into the grooves and adjust groove as needed for nice fit.
Do NOT sand the other end!
(only where the balsa will be glued)
Step 58: Rough up the axles where they fit into the balsa.
Step 54: Left and right axles marked
A Dremel tool with router attachment is perfect for this task.
A knife and small file will also work fine
Step 55: Now make a groove in the axle marks to fit the axles.
Note: Instead of Gorilla Glue, epoxy may be used. Skip this step if using epoxy.
(Gorilla glue sands much better)
Step 59: Squirt some water into the groove as shown.
Any amber colored polyurethane glue will work.
Elmers “Nano” glue is shown here.
Step 60: Apply amber Gorilla glue into the groove as shown.
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Step 61: Apply axle into the groove.
Step 66: Trim and wrap the LE in the same
way also
Step 62: Repeat for both elevators and weight down using plastic wrap as shown.
Step 63: After glue fully cured, trim glue which foams up and squeezes out.
Step 64: Sand the joint flush as shown.
Step 67: Finish and repeat for both elevator
halves.
Make wing
You’ll need : wing cores and shucks, pen, sanding block,
brand new hobby knife blade, scissors, covering iron, iron thermometer, water, ruler, pine block, white gorilla glue, wing lamination sheets (large / small), masking tape, small pliers/forceps
Step 68: Gather parts and tools.
Step 69: Get one of the wing shucks and
hold it so the TE faces you as shown.
Step 65: Now apply laminations to the eleva­tors as you did for the vertical fin.
We want to protect the “knife edge” TE of the wing core at all costs!
Step 70: Gently pry apart the shucks being careful not to tear the fragile TE.
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from the shucks as needed.
This provides top and bottom “beds” to hold the cores while you work on them.
Step 76: Separate the shuck as shown.Step 71: Gently use a ruler to free the TE
Step 72: Carefully lift out the core and set aside.
Step 73: Mark the shuck at the tip edge as
shown
Step 74: Mark the root edge similarly
Step 77: Lay the cores together as shown with
the LE corners perfectly aligned.
Step 78: Mark both cores at the TE at the shortest one.
Step 79: Lay cores with tips so LE corners are perfectly aligned as shown.
Step 75: Transfer the marks to the “thin side” and cut along this line with a sharp knife
Step 80: Mark the tips similarly .
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Don’t skip this step!
You need a brand new sharp blade to get a clean cut in the next strip.
Step 81: Now is the time to replace your hobby knife blade!
Step 82: With core in the bottom bed and ruler , carefully slice along a line connecting your marks.
Step 83: Here you see the very thin foam removed Repeat for other core.
Step 86: Using the core as a guide, lay out lamination panels and trace as shown.
Step 87: Be sure to make left and rights!
Step 88: Cut the LE laminations using a
straight edge and hobby knife as shown.
When working on the core, be careful not to gouge an edge, swipe from center OUTWARD
Step 84: Using a “scotch brite” pad, care­fully remove fuzz from shucks and cores
Step 85: Vacuum any remaining fuzz from the shucks and cores.
Step 89: Y ou can cut the remaining edges with scissors if you wish, or use a knife.
The foam will melt if the iron is too hot, so test on a scrap piece to be sure the laminate glue softens and sticks, but the foam does not melt
Step 90: Heat iron to 250 F. If you don’t have thermometer, test laminate and foam
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Work iron similarly to how you did the tail parts.
Avoid heating one area too long to avoid deformation
Step 91: With core in shuck, align laminate LE 1/8 shy of the core LE and iron down.
Leave the TE untrimmed for now as you did for the tail parts.
Step 96: Trim the core root with scissors as shown. Repeat steps for other surface.
Step 92: Cooling with a straight edge helps keep the LE down on the curved portion of the core
Don’t iron all the way to the edge yet so it won’t stick to the shuck.
Step 93: Carefully iron the laminate toward the core TE as shown.
Step 94: Using a straight edge helps it cool straight as shown.
Step 97: Lay the root edges together and mark the TE to even them out as before.
Step 98: Mark the tip TE locations also.
Step 99: Trim the TE of both cores to these
marks as shown.
Step 95: Trim the core tip with scissors as shown.
Step 100: Cut 2 strips of flexible LE laminate wrap 1” at one end tapered to 1/2”
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Step 101: Affix the small end to the tip LE as shown
Step 106: Measure 2-12” from TE and mark both wing root edge centers as shown
Step 102: Center the LE strip and iron it to the wing core as shown.
Step 103: Iron it down to wrap it to the top and bottom surfaces.
Dihedral angle is only flat” on the top surface. Alter to your taste as desired.
Step 104: Trim / sand the root edges to give a slight dihedral and clean edge.
Step 107: Use pine block to mark wing roots centered on the mark as shown.
Step 108: Hold wings together and transfer marks to the other half as shown.
Step 109: Remove foam between marks to make a pocket for the block.
Laying wings upside down on table with rear TE propped up about 1/2” gives a “flat” top surface and slight dihedral
Step 105: T est the fit of the root edges for dihedral angle (flat on top surface shown)
Block fits halfway into each wing core as shown.
Step 1 10: T est fit the block and remove foam as needed.
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The gorilla glue in the next step will expand to fill small voids up to 1/8” easily, but try to get a good joint with small gaps if possible
The TE center should NOT touch the table. It should be about 1/2” to 3/ 4” away from the table. Use a shim and weights to hold this angle.
Step 1 1 1: Insert the block and check the fit one last time before gluing. Trim as needed.
Step 1 12: Apply white gorilla glue to wing roots and pocket as shown.
Step 1 13: Spray water to activate glue and mix into glue.
Step 1 16: Place wing upside down on plastic wrap and weight while glue dries.
Step 1 17: After glue has cured carefully trim away any glue which squirted out.
Step 1 18: T rim both sides flush
Step 1 14: T ape wing halves together as
shown.
Step 1 15: Continue taping top and bottom surfaces as shown.
80 grit paper on a narrow block works well here--
Only sand the center 1” wide section
Step 1 19: Sand the root surfaces slightly to gently roughen and even them out.
This will be to cover the wing center seam.
Step 120: Mark a 12” wide piece of laminate 1” at both ends.
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Step 121: Cut the strip 1” wide. Make two strips.
Step 126: Align one of the pieces to the fuse and mark hole location as shown.
Step 122: Iron the strip centered on the wing seam as shown (top and bottom).
Step 123: Trim the strips even with the LE and TE as shown with scissors.
St art the front int ake fuselage section
You’ll need : hobby knife, scissors, water, scotch tape,
ruler, white gorilla glue, masking tape, front intake plastic sheet and template, front intake frame pieces, weights, clamps, clamps, nyrod, foam fuse front section, 1/16” clear plastic, saw, popsicle stick
Step 124: Gather parts and tools.
Step 127: Mark center of wing bulkhead area
center as shown (halfway in thickness).
repeat for both sides of “split”
Step 128: Open the fuse section and connect the marks with ruler and pen
Just make wide enough to clear the yellow nyrod
2 diagonal slices are sufficient
Step 129: Slice a groove for the nyrod along this line
Note one frame is slightly smaller than the other around the intake rims-- this will be the “front” piece
Step 125: Remove the front intake frame pieces from the parts sheet.
Step 130: Remove foam in sliced area as shown. Repeat for other side.
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Also mark the location of the dot
Step 131: Place the 1/16” clear plastic to the fuse and trace outline as shown.
A band saw helps here.
Be sure to cut OUTSIDE the line (leave a little to sand closely later)
Step 132: Cut along the line to make the wing front bulkhead. Save the remainder.
Step 133: Drill the hole at the dot location with a #25 drill as shown.
Step 136: Cut the nyrod at 1-3/4” from one end. Save the small piece for later .
Step 137: Mark the remaining nyrod at 1-3/4” from one end.
Step 138: Cut the small piece from the center of the intake template sheet.
This will be the wing front plate
Set this aside for later
Step 134: Align the remainder 1/16” plastic to bottom edge and drill hole as shown.
Step 135: T est fit the nyrod into the bulkhead hole and enlarge as needed for a good fit.
Step 139: Splice this piece to the edge of the template to the marks where indicated.
Step 140: Cut the intake template from the sheet.
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Step 141: Apply the template to the sheet and trace around the border.
Step 146: Wrap the fuse area securely with masking tape to clamp the joint shut.
Step 142: Cut the sheet with scissors. Clean of f the lines when free.
This and following steps must be done in quick succession before the glue in each step cures
Read ahead to familiarize yourself
Step 143: Apply white gorilla glue to area shown.
Step 144: Insert nyrod into groove with mark even with front of foam as shown
Step 147: Apply glue and water mist to the wing front bulkhead area as shown.
Step 148: Apply the wing front bulkhead and hold in place with tape.
Step 149: Smear a layer of white gorilla glue to the entire inside intake area as shown.
Step 145: Mist glued area with water
Step 150: Mist area with water and spread the glue with a popsicle stick.
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Be careful not to warp the bulkhead under uneven pressure-- just make sure it doesn’t separate when the glue foams up
Step 151: Wrap the intake sheet as shown to prepare it for insertion.
Step 152: Place the intake sheet with the seam overlap area toward the nyrod in the center
Step 153: Use the spare foam to press the intake in place.
Step 156: Apply tape and clamps to wing bulkhead to hold it straight while glue cures
two blocks make a good support to clear the intake sheet which protrudes below
Don’t forget the weights!
Step 157: Support the bulkhead as shown and apply weights to center foam area
Proceed to rear fuselage
You’ll need : rear fuselage section, 3M77, mineral spirits,
pen, ruler, hobby knife, 5/32”drill white gorilla glue, brass tube, 5mm screws, elevator tiller arms, 1/16” plastic, Dremel tool/cutoff wheel, CA, kicker, assembled elevators, water, popsicle stick
Step 158: Gather parts and tools.
Step 154: Be sure the intake sheet wraps
with a slight overlap as shown in the front
Step 155: Check and adjust the rear also to insure the overlap is near the center.
Step 159: Mark the brass tube to the width of the tiller arm as shown
Don’t make the notch too wide or deep, it is for the screw in the next step
Step 160: Grind a notch into the tube halfway to the mark as shown.
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Step 161: Enlar ge the notch to be a round hole to fit the screw with knife as shown.
Step 166: Align elevator to rear fuselage as shown to mark axle location on fuse bottom
Step 162: T est fit the screw and adjust hole as needed for a good fit.
Step 163: Cut the bushing at the mark.
Step 164: Finished bushing and tiller parts.
Make two bushings.
Step 167: Repeat for other elevator half
Step 168: Connect your marks with a ruler
Step 169: Mark the brass tube 2-3/4” and
trim the tube to this length with cutoff wheel.
Step 165: Split open the rear fuse to apply medium CA and then clamp it shut.
Step 170: Cut out the elevator support template and apply to the 1/16” plastic
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Step 171: Drill the holes with a 5/32” bit
Step 176: Adjust the slot as needed to fit the
brass tube.
Center the tube in the fuselage, and place a support about 1/8” from each end
Step 172: Cut the elevator supports along the template lines.
Step 173: Clean of f any 3M77 residue with mineral spirits.
This will be for a slot to fit the brass tube
Step 174: Use the support hole to mark a depth on fuselage side as shown.
Step 177: Insert the brass tube, and mark location for elev supports as shown.
Test fit brass tube/ support assembly into grooves and deepen them so the support sits flush to fuse bottom
Step 178: Slice a groove for the supports with sharp knife as shown
Step 179: Apply white gorilla glue to the groove and slots as shown.
A Dremel tool and router attachment may also be used.
Step 175: Cut out the slot with a sharp knife as shown.
Step 180: W ork the glue into the grooves with a popsicle stick.
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to the glued slots.
Step 186: Trim the rear also.Step 181: Apply the support/tube assembly
Step 182: Press the assembly so the supports
are flush with the surface
Step 183: Allow glue to cure (it will foam up and be trimmed later)
Continue the front intake fuselage section
You’ll need : hobby knife, scissors, Goop, 0.040” plastic,
masking tape, front fuse assembly, saw, front intake frame pieces, medium CA, sanding block, intake “V” template, round sanding tools/dowels, kicker, #25 drill, Dremel tool sander, cutting wheel
Step 184: Gather parts and tools.
Step 187: Trim any glue off which squeezes out
around the nyrod frontal area.
Step 188: Trim glue from the wing bulkhead and wing saddle areas.
Step 189: Sand both intake frames lightly to remove the “shine” to prepare for gluing.
Curved lexan cutting scissors work great for this task.
Step 185: Trim the front intake assembly when cured as shown.
Step 190: Apply medium CA to one of the frames as shown.
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The central areas should be the same size and align perfectly
The intake portions of the “front” frame center” over the rear
Step 191: Carefully align the frames and press together . Kick the perimeter joint.
Step 196: Use the sanding dowel to smooth out the frame and reach the corners.
Step 192: Drill the holes with a #25 drill to clear and enlarge.
Step 193: Mark a centerline on the smaller intake frame as shown.
Don’t sand away the centerline
Round only the intake frame inner and outer “front” surfaces as shown
Step 194: Shape the intake rim to round the edges. Use the centerline as a guide.
Step 197: Here is the finished frame
Step 198: Cut out the “V” intake template
Step 199: Apply the V template to the
0.040” plastic as shown.
Step 195: Make a “sanding dowel” from a pencil and 80 grit sandpaper
Step 200: Cut out the V intake parts
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A 3/16” bit works good but any size will help
Step 201: Drill through the air exit in two places to remove the “mushroom” area.
A Dremel Tool and small cutoff wheel are good for this task
Step 202: Make slits in the lower “mushroom” as shown.
Clean up the mushroom with a knife as shown
This is where air exits the battery compartment AND where the rubber band anchors
Step 203: Enlar ge and clean up the mush­room shape to the outline with knife as shown.
Step 206: Place the sanded edges together and tape as shown.
Step 207: Open the joint and apply Goop to the “hinge” area.
Step 208: Apply Goop to the rear of the intake frame as shown.
Step 204: Sand one edge of both V intake parts to a shallow angle as shown
Step 205: Clean any 3M77 residue with mineral spirits.
Try to make the fit straight and “flush” with the outer edge of the frame
Step 209: Apply and tape the V intake to the intake frame.
Step 210: Set the intake aside to dry .
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Continue fuselage assembly
You’ll need : hobby knife, scissors, pen, stabilator servos,
masking tape, all fuselage parts, medium CA, kicker, ESC/motor wiring, Dremel tool drum sander, white gorilla glue, water, round sanding tool, weights, plastic wrap, soldering tools
We want to remove this corner-- it’s bad for airflow!
Step 21 1: Gather parts and tools.
Step 212: Apply medium CA to the center
fuselage split as shown.
Step 213: Press the seam together and kick the joint
Step 216: Using a pencil, mark the exposed “corner”
Test fit several times as necessary in previous step to get a smooth transition
Step 217: With a round sanding tool, remove the marked corner area.
Step 218: Apply medium CA to front surface of middle fuse section as shown.
Step 214: Hold the front and middle fuse­lage sections together as shown
Align the outside edges of the fuselage during this step
Step 215: Looking down the front, note anyplace there is a exposed “corner”
Step 219: Spray kicker to the rear of the front fuse section as shown.
Step 220: Carefully mate the front and middle fuse sections together.
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Step 221: Mark a deep “V” outline to the front fuse as shown.
Step 226: Trace around ESC location as shown.
Step 222: Mark a shallow “u” outline to the rear assembly as shown.
Use a sharp knife and work slowly
Avoid cutting into the intake cavity
Set top aside for later
Step 223: Slice along the entire fuse assem­bly as shown to remove the top section
Insert fan halfway into the mid fuse.
The ESC should lie in the mid fuse section about 2” to the rear of the front section
Step 224: Lay ESC and motor components over the fuse to determine wiring lengths
Step 227: Cut cavity for ESC to lie within.
Step 228: Place ESC heat sink exposed and
“flush” to the airflow as shown.
Step 229: Glue ESC to cavity perimeter with medium CA .
Note separate BEC not used in this system. If using BEC, place up front near power plug.
Step 225: Fully wired power system. Note battery plug location.
Step 230: T rim expanded glue from the rear fuselage bottom as shown.
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servos touch elevator tube supports
Don’t forget plastic wrap to stop the weights from sticking to the fuselage!
Step 231: Mark locations for the stabilator servos on rear fuse bottom as shown
Also don’t forget to cut a slit for the servo wire! A couple inches is good for now
Step 232: Slice around the perimeter of the servo outline with a sharp knife.
Step 233: Remove foam from the servo area to the correct depth for a flush fit.
Step 236: Install the servos and weight down with while glue cures
Start the Nose
You’ll need : formed nose halves, Goop, laquer thinner,
electrical tape, sanding block (40 grit), acid brush, dowel, mixing cup, nose bulkhead pieces, medium CA, kicker, heavy duty scissors, masking tape
Step 237: Gather parts and tools.
Step 238: Sand the surfaces of the bulk-
heads to remove the shine
Step 234: T est fit the servos and adjust cavity as needed for a good fit.
Step 235: Apply gorilla glue and water to the servo cavities.
Step 239: Glue one piece to the other as shown.
Step 240: Roughly cut out the left and right nose halves. A band saw makes this easy .
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Step 241: Trim both nose pieces to the faint centerline.
Step 246: T ape the bulkhead in place as shown to help hold the rear together .
Step 242: Y ou can use heavy shears if necessary .
Step 243: Closeup showing molded
centerline (leave some for precision sanding).
Step 244: Sand the nose pieces precisely to the centerline.
Step 247: Apply a few electrical tape strips to hold the halves together as shown.
Step 248: Apply a couple pieces of electri­cal tape along the center seam as shown.
Step 249: Remove the bulkhead in prepara­tion for gluing.
The edges should butt together with no gaps and fit perfectly around the bulkhead.
Step 245: T est fit the bulkhead between sandings to check your progress.
Step 250: Apply Goop where the bulkhead sits.
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in place.
Vertical Fin and optional rudder
You’ll need : rear fuselage assembly, vertical fin, pen,
rudder servo, knife, masking tape, gorilla glue, water, 1/16” plastic scrap, clevis, CA, rear fuselage internal “cone”, plastic wrap
Step 256: Gather parts and tools.Step 251: Re-insert the bulkhead and tape
No need to trace moveable rudder portion
Step 252: Squeeze about 3 oz of Goop into a mixing cup.
Step 253: Mix some laquer thinner into the goop to a honey like consistency .
Step 254: T ape a dowel inside an acid brush to give you a long handle.
Step 257: Align fit to fuselage center (seam) and trace around perimeter as shown.
Leave the foam in place for now
You’ll remove it after the fuselage is covered with Ultracote
Step 258: Slice completely through the outline with a sharp knife.
Step 259: Locate rudder servo roughly halfway within the fin outline as shown.
Step 255: Apply the thinned Goop to the inside seam as shown.
Step 260: Cut completely through the rudder servo outline.
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Step 261: Mark the location for the servo on the fin
Also make a slit for the wire about an inch long
You’ll route the wire to the RX later
Step 266: Insert servo into pocket as shown.
Step 262: Remove the foam and test fit the servo-- adjust the cavity for a good fit.
Step 263: Wrap rear fuselage internal cone neatly with plastic wrap and insert into fuse.
Step 264: Apply masking tape tightly on either side of servo pocket as shown.
Step 267: Replace the foam to “cap” the servo and glue in place with more gorilla glue.
Step 268: Apply masking tape to the foam cap as shown.
Step 269: Make a slot into the rudder as shown to fit a 1/16” thick control horn.
Step 265: Apply white gorilla glue and water to the servo pocket sides.
Step 270: Make a rudder control horn from scrap 1/16” plastic as shown.
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This is for clearance
Line is drawn from corner that touches fuselage to other end parallel to fuse
Step 271: Insert control horn and glue in place.
Step 272: Seal the exposed balsa edges with CA as shown
Make elevator linkage items
You’ll need : rear fuselage assembly, pen, ruler,
knife, clevises, tiller arms, push rods, elevators, Dremel tool cutoff wheel, drum sander, servo arms, tweezers, 1/8” drill bit
Step 273: Gather parts and tools
Step 276: Insert elevator axle into tube and
mark line parallel to fuselage edge
Step 277: Trim root edge to the line. Repeat for other elevator
Step 278: With both axles in place and touching , measure the gap as shown
A knife and tweezers are good for this task.
Step 274: Clean expanded glue from elevator axle tube.
Step 275: Finish cleaning each end of the tube with a 1/8” drill bit.
This will give 1/8” clearance on each side with axle ends touching
Step 279: Split the gap measurement in half and mark each axle end minus 1/8”
Step 280: Trim axles to marks with cutoff wheel.
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Step 281: Deburr the ends of the axles
Step 286: Make Z bend in push rod at
correct location
Step 282: Place tiller arm over axle hole and servo arm mark motion clearance lines as shown
Step 283: Slice the outline with a sharp knife to a depth of the axle tube and servo
Step 284: Remove foam with a drum sander to an even depth as shown
Step 287: Install clevis to till arm and z bend into servo arm as shown
Make sure to exercise full range of servo
Don’t’ let the arms or push rods bind in the foam
Step 288: Driver servo with radio or device full range and clear cavity as needed
Configure fan components in fuselage
You’ll need : rear fuselage assembly pen, sandpaper,
knife, masking tape, scotch tape, ruler, electrical tape, assembled fan unit, Dremel tool drum sander, 1/2”x 13” dowel, CA, thrust tube jigs and plastic sheet
Step 289: Gather parts and tools.
Place both tiller and servo arms “vertical” as shown during this step
Step 285: Apply push rod and clevis then mark rod length Z bend location as shown
Depending on lug locations, you may need to do this into the middle or rear fuselage part. (fan shown backwards here)
Step 290: Insert fan into rear of fuse and mark location of lugs (if any).
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Step 291: Mark rear fuse location for wire relief as shown
Step 296: Assemble thrust tube jig from dowel and discs as shown
Step 292: Mark inside location for wire relief also.
Step 293: Remove foam from area as shown
Step 294: Slice and remove foam from fan lug locations
Step 297: Wrap thrust tube plastic around jig and mark location for 1/2” overlap at each end
Step 298: Trim thrust tube to marks
Step 299: An easy way to start taping the
tube is to insert into rear fuse to hold it
Step 295: T est fit the fan and trim any foam needed so fan fits halfway into rear fuse
Step 300: Once ends are taped together apply scotch tape to the entire seam as shown
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Equal spacers between fuse rear/front allows access
Fuse holds tube in correct position
Step 301: Smooth down the tape
Step 302: Hold thrust tube to motor with 1/2”
overlap and mark location for wire exit
Step 303: If desired, “profile” and tape wires together . Seal with CA.
Step 306: To insure thrust tube alignment, you can assemble fuse and fan as shown
Step 307: S tart taping thrust tube to fan between spacers as shown
Step 308: Remove fan/tube and finish taping
Step 304: Cut slot and clearance for wires
Step 305: Insert fan into tube and trim for
clearance as needed.
Step 309: Insert fan assembly into rear fuse and adjust/ trim anything as needed
100 grit paper works well
Step 310: If desired, round/sharpen inside rim of fan to lessen air turbulence
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Join Rear and front fuse assemblies
You’ll need : rear / front fuselage assemblies, pen,
knife, masking tape, gorilla glue, water, Goop, file, Dremel tool, 40 grit sanding block
Step 31 1: Gather parts and tools.
Step 312: Carefully trim the foam from the
optional rudder servo as needed.
Step 313: Slice and route the rudder servo wire to the bottom corner fuselage as shown
Step 316: Apply goop to front of fuse as shown
Step 317: Insert intake/ V frame into place as shown
Step 318: Apply Goop to inside corners of “V” cavity as shown.
Step 314: Sand the foam to a smooth contour to remove rudder ‘bump”
Step 315: Enlarge or modify battery plug opening for your configuration
Step 319: Smooth Goop into nice “fillets”. Do for all 4 inside V cavity corners.
Supplied hole will fit Dean’s
Adjust for your plug as needed
Step 320: Goop power plug into place.
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frame as shown. T ape/clamp as needed.
Step 326: Tape fuse parts tightly togetherStep 321: Plug should rest halfway into
Mount wing
You’ll need : fuselage assembly, pen, knife, wing,
masking tape, plastic wrap, weights, gorilla glue, water, wire cutters, Dremel tool, 9/64”, 3/16” and #25 drills, saw, 1/16” plastic, pine block, blind nut, sanding block, vaseline, 6-32 screw
Step 322: Apply masking tape to intake frame to hold it tightly to foam.
If you glue the fan it will be more difficult to service
With moderate (ab)use the fan will stay in position without glue
Step 323: OPTIONAL - Apply glue SP ARINGL Y to fan/fuse joints
Alternately, 3M77 may be used here
Spray into a cup and apply to mating surfaces
Step 324: Apply glue to fuselage as shown
Step 327: Gather parts and tools.
Step 328: Mark center locations on fuselage
and wing bottoms for later alignment
Step 329: Mark nyrod 1/2” from wing bulkhead as shown
Step 325: Press front and rear fuselage assemblies together
Step 330: Trim nyrod to mark
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plastic wrap protects the fuselage
(it is folded back here)
Step 331: Make cavity in wing front to clear nyrod as shown
Skip ahead to step 340 to see wing plate
Locate and drill center hole first, then trace outline
Step 332: Make wing plate from 1/6” plastic by drilling and fitting to wing as shown
Step 333: Trim wing plate to rough shape of wing front (test fit onto pin and wing).
Step 336: Apply wing plate to wing and set in saddle tightly to bulkhead as shown
Use masking tape and a weight as shown
Step 337: Insure wing TE is centered and weight down until glue cures (about 1/2 hour)
Step 338: When glue is cured remove wing and carefully trim plate to wing surface
poke hole for wing pin
Step 334: Apply plastic wrap to wing front saddle area as shown.
Step 335: Apply glue and water to wing front as shown
Step 339: Masking tape makes a good “scuff guard” for final sanding.
Step 340: Plate should be flush with wing surfaces as shown.
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Step 341: Measure location of pine block wing to wing front edge as shown
Step 346: Apply vaseline to threads of screw and blind nut
Try to smooth out the plastic wrap as good as you can
Step 342: Transfer this location to wing saddle as shown and trace block perimeter
Step 343: Cut cavity into foam to fit pine block
Be sure W ing is centered
Pine block is in fuselage cavity under the wing (Drill through both at the same time)
Step 344: Mount wing in saddle and drill through wing block center with 9/64” bit
Step 347: Apply plastic wrap to top of wing and hold it tightly with tape.
It’s a good idea to test fit wing now
(skip ahead to step
351)
Step 348: Wrap extra plastic around wing to bottom and tape. Poke hole for screw .
Step 349: Glue pine block into cavity with gorilla glue and water
Be sure to keep block orientation during this step!
front
(block shown upside down to show blind nut)
Step 345: Enlar ge hole in pine block to 3/16” and install blind nut with CA and kicker
Step 350: Apply white gorilla glue generously to wing front saddle corners as shown
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Be sure wing is centered and everything fits!
Step 351: Mount wing and tighten screw into the block underneath. W eight down
Fill and mount nose
You’ll need : nose assembly, sandpaper, sanding block,
#25 drill, 15 or 30 minute epoxy, magnets, Goop, popsicle stick, fuselage, masking tape, long nose pliers, CA, kicker, plastic wrap microballoons filler, old credit card, knife, rat tail file, nyrod, long straight edge, wing
Step 352: Gather parts and tools
Step 353: Scuf f the seam area of the nose to
give the epoxy some grip
Step 356: Spread filler to completely fill the seam area so it can be sanded smooth later
Step 357: Apply glue/filler to wing tips also
Step 358: Drill the bulkhead holes to clear
them of any glue with #25 bit.
Step 354: It helps to scuf f quickly rather than press hard to avoid flexing
Step 355: Mix some 30 minute epoxy and filler and apply to seam
Careful not to sand too far (don’t sand bulkhead itself)
Step 359: Sand away perimeter flange to be flush with bulkhead
Step 360: Remove any goop from round cavities as shown with pliers and knife.
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Step 361: After epoxy has cured, sand it smooth
Step 366: Test fit nose onto fuselage and check for straightness with long straight edge.
Step 362: A disc sander works well when feathering the edges to avoid nose flexure
Step 363: Drill the “nostrils” with small drill.
Step 364: Enlar ge nostrils with small rat tail
file.
Step 367: Sand nose as required to achieve straightness when held tightly to fuselage
Be very careful when handling the magnets!
They break easily when snapped together
Step 368: Pair all magnets together with small squares of plastic wrap between them.
Step 369: Apply Goop to the circular cavities in the nose as shown
Step 365: Glue nyrod into top hole with CA and kicker as shown
Step 370: Carefully place them into the nose as shown
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Step 371: Apply Goop to the four circular cavities as shown
Step 376: Mark and make a cavity in the fuse side where all wires will reach.
Step 372: Mount the nose to the fuselage
Be sure nose is straight
Check alignment again with straight edge
Step 373: T ape the nose tightly in place. Let dry at least overnight in warm place.
Install RX and wiring and prepare for covering
You’ll need : fuselage, RX, knife, TX, medium CA, kicker,
40 grit sanding tools, tweezers/forceps, Dremel drum sander, lightweight spackle, battery
Step 374: Gather parts and tools
Step 377: Slice the fuse to route your throttle
and any BEC wires to the RX.
Step 378: Tuck the wires in place
Step 379: Gather extra wiring into a small
cavity next to the RX
Also be sure your elevon / delta wing program is moving the servos in the right direction.
You might not be able to fix it later!
Step 375: Hook up your radio and be sure all connections are working.
Step 380: Finished installation. Double check radio activity with battery plugged in.
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test fit and remove more foam as needed
Step 381: Make clearance for wiring and ESC into top foam slice as shown
Step 382: Spray kicker onto the inside of the top slice as shown
Work small sections at a time and press in place until glue grabs, then glue next forward section
Step 383: S tarting from the rear, glue the slice back onto the fuse with medium CA
Step 386: Apply spackle to fuselage in any area that has voids
Step 387: Trim and smooth the wing bulkhead area for a smooth transitional contour
Step 388: Sand /fill any foam even with front and wing bulkheads
Step 384: Trim glue away from fuse sides to be flush with wind sides as shown
Step 385: Obtain a can of lightweight vinyl spackle
Don’t worry about small voids (1/8” or less) which will be invisible under the Ultracote covering
Step 389: Sand foam and filler as desired for a good fairing
lumps of Goop can be picked/ cut from the intake frame with a knife and tweezers.
Step 390: Sand the entire fuselage with 40 grit sanding tools to remove any bumps.
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smooth transition.
Step 396: Mask of f servo and tube holesStep 391: Sand the top also for a straight
Step 392: Also sand the edges of the balsa parts
to make smooth before painting.
Cover fuselage with Ultracote
You’ll need : fuselage, knife, tweezers/forceps, Ultracote,
small scissors, masking tape, Balsa Rite, covering iron and thermometer, acid brush, Dixie cup tailcone, Goop, masking tape, paper, vacuum cleaner, 3M77
Step 393: Gather parts and tools
Step 394: V acuum the fuselage
Step 397: Mask thrust tube with paper as
shown
Spray a section at a time and allow to dry so you have a place to hold for spraying the next section
Step 398: Spray entire fuselage with 3M77. Spray from rear forward to avoid intake
Covering iron should be set from 250 to 300 deg F
Step 399: Apply covering to bottom as shown.
Step 395: Apply Balsa Rite to the intake frame
Let covering overlap about 1/2” onto sides
Step 400: Iron covering and pleat as needed to negotiate corners as shown.
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pleat as shown in rear.
Step 406: W ork the top covering as shownStep 401: Iron entire bottom smooth and
The concave parts are most difficult. Avoid ironing them after doing adjacent areas or they will lift
Step 402: Apply a small piece to the front bottom and iron down
A small iron set to “high” is good for precision work
Step 403: Heat and stretch covering around front of intake.
Step 404: S tretch bottom covering around and into intake and trim even with frame
Step 407: Closeup of pulling around and down into the intake while heating
Step 408: Trim even with intake frame and around magnets as shown
Step 409: Finish up the rear as shown
Let the heat do the work-- small amounts at a time
Step 405: Apply top covering and work around intake similarly
Step 410: Scribe a line around the Dixie cup tailcone for reference close to the bottom
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Cup should touch thrust tube without deforming it when pushed to fuse rear
Use vertical fin to help measure line length
Step 41 1: T rim bottom as needed to fit as shown. Scribe lines to assist trimming
Apply rings of Goop where cup touches fuse and thrust tube
Step 412: Paint the cone as desired then Goop into place as shown.
Pre Flight Assembly
You’ll need : fuselage, knife, tweezers/forceps, Ultracote,
small scissors, masking tape, masking tape, tail parts, linkages, screwdriver, pen, ruler, rubber bands, Gorilla Glue, water, battery, nose, scissors, skewers/chopsticks
Step 413: Gather parts and tools.
Step 416: Mark centerline where vertical fin
goes
Step 417: Slice along line deep enough to peel back covering, then remove foam in groove
Step 418: Trim vertical fin rudder servo cavity to outline (if any)
Step 414: T rim thrust tube even with tailcone when Goop has cured.
Step 415: Cut hole to reveal wing mount screw hole
Step 419: Test fit fin into groove and trim as needed for flush fit.
Step 420: Mark cavity for elevator linkage as shown.
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cavity so linkage may be installed.
Do for both elevators (mirror images)
Step 426: Make rudder linkage if desiredS tep 421: T rim away covering to expose
W e recommend temporary installation for first flight and then paint after trim has been achieved.
See step 437 if gluing NOW
Step 422: Make push rod bend to keep elevator against fuse when servo arm installed
Test fit by installing elevator and servo arm and try to pull elevator away from fuse-- it should “snap” back on its own
Step 423: T est fit elevator into fuse and adjust bend as needed to retain elevators
Step 424: Elevator installation should look like this
Step 427: Y ou may glue in rudder now OR tape in place for first flight.
Tape allows fin to be removed for painting (rather than need for masking surroundings if glued)
Step 428: T ape fin to fuselage as shown. Press cleanly into corners for strength.
Step 429: Route rubber band through hole, and trap with skewer as shown
Step 425: Snug screws SLIGHTLY, then re­adjust / tighten with radio on for neutral setting
Step 430: Pull tightly so rubber band catches in grooves in front of hole then remove skewer .
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link by looping through and then pulling “lark’s head knot” style
and anchor last one in other side like first
Step 436: Paint and decorate as you desireS tep 431: Link 3 rubber bands together,
Amber Gorilla glue is strongest
for fin installation-
- but it foams a LOT , so here’s a good way to stop it deforming the thrust tube
Step 432: T est fit your battery
Step 433: Install nose and adjust anything
which binds
Fly the Plane! See CG and trim settings
After flight, note if any aileron roll trim is needed, if so, you can probably fix this by slightly twisting the wing and ironing it with proper aileron twist BEFORE painting your wing so as not to scuff your paint job.
Step 434: Balance plane 4-1/4” from wing plate. See flying and trim tips section.
Step 437: From rear fuse foam “cone” mark widest section which will fit into thrust tube
Step 438: Slice this “wedge” from the cone as shown
Step 439: Insert wedge into tube with round edge against fin area of tube.
Step 435: After first flight, you have the option to remove any warp which might cause roll
Tape fin to keep it square to fuse, and clean any glue which squeezes out of joint with acetone periodically
Step 440: While gluing fin, stuff paper towels into tube to force wedge against tube “top”
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CG Location and Flight Trim:
Balance plane from 4-1/4” to 4-1/2” from the LE of the wing. Shim / move the battery or add weights as needed
to balance the plane here. Fly then adjust as desired.
After your first flight trim note the position of the taileron trim. If any “roll” trim is present, there is a small twist in your wing which was likely created during the laminating steps. Y ou have the option of re-ironing the wing while holding gentle pressure to try to remove that twist-- or you can simply keep flying the plane with this trim setting.
Due to the low position of the tailerons on the fuselage and their short hidden linkages, it’s not uncommon for roll control to have asymmetric tendencies. These can be corrected with linkage geometry adjustment and/or radio mixing.
If your plane rolls faster to one side or another, or the roll appears “unaxial” (ie, barrel roll) you may need to adjust your linkage to remove any differential OR you could experiment with mixing of aileron => elevator or aileron => rudder mixing to get the plane to roll how you wish.
Landing Flare
As with any full flying low “stabilator” design, care must be taken when landing to avoid digging the stabilator “points” into the ground as the plane slides to a stop. Try to avoid the usual application of up elevator “flare” as the plane touches down. With practice you’ll learn to bleed the ener gy you need on or before final approach to make predictable yet slow slides near your intended target.
Repairs
If you should dig the stabilator tips into the ground, they may delaminate the plastic and bend down. If this happens, you can carefully straighten them with your fingers and wick some thin CA into the creased area and then apply kicker . You may wish to re-iron the creased area to help smooth the wrinkle, and if you do that you’ll probably need to repaint the area to restore the original finish.
Sometimes during crashes the elevator tiller arm bushings will twist on impact. If you have stout servos (ie, HS 85mg or stronger), you can often reposition the elevators by carefully twisting back to neutral setting with the radio turned on. A safer approach would be to remove the covering to access the set screws as needed, loosen, reposition and retighten.
If your fan rotor needs replacement, you can access the fan by cutting a hatch in the wing saddle area leaving a perimeter of approximately 1/2”. If you slice the area with a sharp knife at an angle-- much like cutting a “pumpkin top” it will be easily replaced and reglued later with CA or gorilla glue used sparingly. Be careful not to cut through any
wires!
Should you need access to the ESC and/or motor wiring you will likely need to cut away the foam in these areas which isn’t fun, but it will be possible to re-patch everything with CA, 3M77, Gorilla Glue, filler and more covering. Keep in mind it’s easy to remove the covering with the application of heat (iron or heat gun used with care to not melt the foam), so you can reapply the covering “skin” after the “surgery” is complete.
Have Fun!
W e welcome any feedback you may have on this or other TufFlight products.
Please feel free to contact us via our website : www .tufflight.com
take care and enjoy!
Mark & Joe
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Also look for these fr om TufFlight:
3D Flying:
The 4D:
The perfect glo fuel .46 size 3D practice plane. Learn all 3D moves low to the ground without fear of crashing. Durable EPP wings and machined plastic fuselage, with durable corplast full flying tail feathers. Light 4.5 lb flying weight puts it at the top of it’ s size class compared to most other “3D” ARFs and kits..
The 4D Lite:
Electric powered “little brother” to the 4D. Fly an entire 3D airshow in your front yard. Extremely durable and lightweight gives you the perfect combination of “bounceability” and precision flying no other kit can match. V3 kits offer fast self jigging assembly . 1-2 day build time on average.
R/C Combat :
The Predator:
Our first kit, and still a popular choice for sport or combat flying. New improved V ersion 6.0 is very durable and aerobatic. Simplified construction with all new instructions (like this manual). Removable fin for easy storage, maintenance and transport. At 48” span and under 2.5 lbs, it’s a fast and agile “fly at a moment’ s notice” plane.
The Panther:
State of the art in Open B and Slow Survivable (SSC) class combat. Unbelievably maneuverable and durable. 60 inch span for great streamer catching and turning. For 15 - 30 size glo fuel engines.
The Perfect Park Jet:
Simple to build, and fun to fly , the T ufFlight Stingray is the perfect size to take with you to any park at lunchtime
for thrills, yet durable EPP airframe lets you survive “spills.”
Super light airframe with greater than 1/1 thrust/weight ratio means
easy takeoffs, and fun flying traits.
No propeller to break or accidently hit. This is a perfect plane to get
a bunch of friends together to practice formation or night flying.
Thin and efficient wing for excellent energy retention. Very easy to
land with power off and amazing glide ratio for a plane this light. Excel- lent inverted flying traits-- a great plane to learn rolling close to the ground.
Quick 3 hour build time with 4 large CNC cut foam parts to glue. EPP skin hinged elevons and radio installation templates make your radio setup a breeze.
See our amazing crash test and aerobatic videos online
www.tufflight.com
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