TuffWing Spec Wing FPVWRA Racer




Wingspan: 36"
Weight built - no battery  325g
Material: EPP foam, carbon fiber tubes, Coroplast, ABS, laminate film
Battery: 3S 2200 mAh
Motor: T-Motor AT2310
Cobra CP2210
ESC: Emax Formula 45 amp
Servos: Emax ES08MDII
Voltage regulator for servos and receiver Matek 2-8S Micro 5V
Propeller: APC 6x4E
Camera: Foxeer Micro Predator (Plug Connector)
Video Transmitter: TBS Unify
RDQ Mach 3 (MMX)
Video Antenna: TrueRC AXII 5.8GHz MMCX (Side Feed) FPV Antenna - RHCP

Kit contents

  • EPP wing core with pre-cut servo pockets, elevon hinges, and spar grooves
  • Coroplast electronics bay and winglets
  • (7) Carbon fiber spars:
    • (1) Center 6mm x 17.25"
    • (2) Leading edge 5mm x 19.5"
    • (2) Aft edge 4mm x 17"
    • (2) Elevon 3mm x 13"
  • Computer cut 3 mil laminate
  • Vinyl graphics
  • Light weight - low drag CNC cut control horns, Dubro micro connectors, and .047 music wire pushrods
  • 3D printed motor mount and camera mount (fits most 19mm micro cameras - Foxeer micro predator, etc.)
  • (4) m2x8 motor mount screws
  • Laser cut velcro for securing electronics bay cover
  • (2) zip ties for securing ESC and VTX
  • 3D printed propeller spacer

Additional items needed

  • White Gorilla Glue. Original is fine but white matches the foam and dries faster.
  • Hot glue
  • Film covering iron: https://hobbyking.com/en_us/digital-led-sealing-iron-110v-us-plug.html
  • FPVWRA approved motor: T-Motor AT2310 or Cobra CP2210
  • Servo: pockets in wing are specifically cut out for Emax ESO8MDII
  • Propeller: APC 6x4E
  • FPV camera: 19mm Micro FPV camera such as Foxeer Micro Predator or Runcam Micro swift
  • Video transmitter: 200mw Raceband such as TBS Unify, RDQ Mach 3, Lumineer TX5GS
  • Video transmitter antenna: TrueRC AXII 5.8GHz MMCX or similar
  • Voltage regulator (BEC) for servos and RC receiver
  • RC transmitter and receiver

Build instructions

  1. Trim off the top front edge of the shucks and tape together. Hot glue on the tape helps hold.
  2. Note: All gluing and laminating must be done while the wing is resting in the shuck.

  3. Use a small screwdriver to remove the cores from the spar grooves.

  4. Add Gorilla glue to spar grooves - Except elevon spars. You will use hot glue later.

  5. Insert 5mm leading edge spars. Leave gap at wing tip.
  6. Insert 4mm aft wing spar.
  7. Join wing halves with 6mm center spar.
  8. Glue wing halves with hot glue at the top and bottom of the bay.
  9. Do not install 3mm elevon spars yet. They will be installed with hot glue next.
  10. Set wings on shucks, then add weights to hold wings perfectly flat.
  11. Spray water on Gorilla glue to activate.
  12. Use an razor knife to trim expanded Gorilla glue from spar grooves.

  14. Insert the elevon spars into the spar grooves, centered with even gaps on both ends.
  15. Apply a generous line of hot glue on top of the elevon spar. You will melt down the line of glue and press in the spar with your film covering iron in a later step.
  16. Install the camera mount with hot glue. Camera mount top up with servo side. Always apply hot glue to plastic parts. Hot glue will cool if applied to foam, plastic part to foam and won't bond well.
  17. Center the servo arm on the servo using your RC transmitter and receiver or a servo centering tool.
  18. Hot glue the servos in place as shown.
  19. Push the servo arm down flush with the top of the wing so it won't interfere with the laminate.

  21. Draw thin lines of glue as shown with your glue gun.  Do top and bottom. This creates a strong bond between the laminate and foam. Any glue lumps and be melted down with your laminate iron.
  22. Install the precut laminate elevon strips on the bottom . Make sure wing is resting in the shucks on a level surface. Use your film iron on top of the laminate to melt the hot glue and make the elevon perfectly flat.
  23. There should be an 1/8" all the way around.
  24. Install wing bottom laminate. There should be a 1/8" gap at the red line.
  25. Overlap leading edge 1/2".
  26. Keep wing in shuck while installing with film iron. Do both sides.
  27. Install wing top laminate. Align servo and control horn cut outs.
  28. 1/2" overlap on leading and trailing edges.
  29. Antenna should be installed.