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Assembly Manual Tuffwing 24
TufffWing
Boerne, Texas USA
www.tuffwing.com
© 2013. TuffWing. All rights reserved. 1
Kit contents
• EPP wing set (1)
• 1/8” ply motor mount set (1)
• Control horns (2)
• Coroplast hatch (1)
• Coroplast motor mount doubler (1)
• Coroplast winglets (2)
• 4mm x 12.5” carbon tube - center wing spar
(1)
• 4mm x 15.25” carbon tube – leading edge
wing spars (2)
• 1.5mm x 7.75” carbon rod – elevon spars
(2)
• Control rod with Z bend (2)
• Control rod quick connect (2)
• Velcro strip for electronics hatch (1)
• 2mm x 8mm motor mount screws (4)
• Assembly manual
Additional items needed
Building materials
• Thin and medium CA
• CA accelerator
• Masking tape
• 2” fiberglass reinforced packing tape. 3M
Extreme available from Home Depot works
best.
Electronics-See www.tuffwing.com
• Brushless outrunner motor-Turnigy 2826-
2200 KV
• 25 amp or higher brushless speed control
• Micro connector for battery and speed
control
• 6x4 electric propeller
• 9 gram servos (2)
• Transmitter with Elevon mixing
• Micro receiver
• 1000 -1300 mAh LiPo battery
• LiPo battery charger
Build the wings
1. Push and twist the carbon spars into the
spar grooves. Do the leading edge first.
a. Leading edge wing spars 3mm x
14.75” (two)
b. Elevon spars 1.5 mm x 8” (two)
c. 4mm x 14” wing joiner spar (one)
2. Slide the wing halves together until there is
a ½" gap.
3. Apply medium CA to one side of the wing
root.
4. Lay on flat surface and push the roots
together.
5. Hold roots even and spray joint edge with
CA accelerator.
6. Drip thin CA into all spar grooves, then
spray with CA accelerator.
© 2013. TuffWing. All rights reserved. 2
Install the Coroplast mount plate
and electronics hatch
1. Apply Medium CA to the Coroplast motor
mount doubler and align it with the motor
mount cutout on the top of the wing.
2. Pull the Coroplast hatch through the
opening in the wing and align front tabs.
3. Fold the bottom of the hatch, align with
motor mount, and tape down.
4. Wick thin CA into the joint from the inside.
Be sure the tips of the hatch are thoroughly
bonded to the bottom of the motor mount.
5. Remove the tape and wick thin CA around
the bottom and front edges of the hatch.
Except for the top, make sure all the edges,
including the front are bonded. It's extremely
structural and the toughness of your plane
depends on it.
Note: Do not glue the hatch to the top of the wing.
6. Stick the Velcro strips to the back edge of
the underside of the top hatch. Then Velcro
the opposite strips, remove the backing and
close the hatch – transferring the opposite
strips to the top of the wing. Then add
medium CA to the edge of the Velcro to
bond it to the wing.
Build and install the motor mount
© 2013. TuffWing. All rights reserved. 3
7. Glue on the sides of the motor mount with
medium CA as shown. Make sure TOP is on
top.
8. Then glue the top and bottom as shown.
9. Glue the motor mount with medium CA to
the Coroplast motor mount doubler and
wings.
Tape the leading edge
1. Stick strapping tape from the front of the
electronic bay to the nose. Trim tape near
the leading edge and fold over. Do the
bottom first.
2. Stick strapping tape to the leading edge.
Install the servos, control rods and
control horns
1. Press fit the servo and servo wire into wing.
Do not glue yet.
© 2013. TuffWing. All rights reserved. 4
2. Push in the control horns flush with the
bottom. Scrape any excess CA away if
necessary to avoid breaking the control
horn. The notch in the control horn goes
over the 1.5mm elevon spar. Drip thin CA
into the joint and spray with CA accelerator.
3. Insert the quick connect shaft through the
control horn. Tighten nut until it bottoms
against the non threaded shaft. Install the
pushrods and tighten Phillips screw.
Note: Set your transmitter to Elevon mode, center
your servos and set 3/8" up and down throw before
gluing them in place.
4. Remove the servos and spray CA
accelerator in the servo cutout. Then apply
a thin layer of medium CA on the bottom of
the servos, then press firmly, and hold until
dry in the servo cutout.
Install the winglets
1. Apply medium CA to the wing tips, and then
press the winglets to wing. The airfoil shape
goes on the top of the winglet.
Install the motor
1. Install the X-mount to the back of the motor,
then screw the X-mount to the motor mount
included 2mm screws.
Install the speed control, receiver,
and battery
© 2013. TuffWing. All rights reserved. 5
1. Install bullet connectors between motor
leads and speed control. Install appropriate
connectors between battery and speed
control. Connect the speed control and
servos to the receiver.
Center of Gravity
There is balance hole on the bottom of the
CoroPlast hatch. As long as the plane balances
or falls forward you’re good. Tail heavy will be
nearly impossible to fly. Nose heavy is fine.
Set the control throws
• 3/8“ up
• 3/8“ down
• Set elevons 1/8” up from level for first
flights.
• Move stick right: Right elevon up, left elevon
down
• Move stick left: Left elevon up, right elevon
down
• Move stick forward: Both elevons down
• Move stick back: Both elevons up
Notes
Use 30% Exponential for smoother flying. Negative
Expo Futaba, positive Expo Spektrum/JR.
Launching and flying
1. The side launch is the easiest way to get
your TuffWing in the air. Add about 1/2
throttle and throw it at a 45º angle like a
Frisbee, just not with a twist of the wrist at
the end. You may want to have a friend
launch it until you get it trimmed.
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