5376 Amalfi Drive,Clay, NY 13041ww w.tufflight.com
The Toughest R/C Planes Ever!
igig
ig
igig
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
Page 1
Page 2
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)
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
Page 2
Page 3
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
Page 3
Page 4
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.
Page 4
Page 5
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
Page 5
Page 6
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.
Page 6
Page 7
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.
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
Page 43
Page 44
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.
Page 44
Page 45
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
Page 45
Page 46
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.
Page 46
Page 47
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
Page 47
Page 48
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,
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.
Page 52
Page 53
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 .
Page 53
Page 54
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”
Page 54
Page 55
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
Page 55
Page 56
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Page 56
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