Tiny Wing Introduction

Welcome to our Tech blog.

Today I will introduce a tiny UAV that is easy to build and fun to fly.

Model Information

TThe Tiny Wing is a 3D-printable UAV with a 380 mm wingspan and a single pusher motor. Its name highlights the small form factor and lightweight design — just 100 g all up weight (AUW). The aerodynamics have been optimized for efficiency and agility.

TinyWing

Model Specifications & Performance

Wingspan: 380 mm
Wing area: 30,000 mm²
Cruise speed: 25 km/h
Typical take-off weight: 100 g
Maximum pusher propeller diameter: 3 inches
Motor: 1104 7500 KV

Aerodynamic Properties

  • Root chord:** 140 mm
  • Tip chord:** 60 mm
  • Average chord:** 100 mm
  • Incidence:** 0°
  • Aspect ratio:** 3.8
  • Max L/D:** 8.0
  • Leading edge sweep:** 55.6°
  • Trailing edge sweep:** 81.0°
  • Airfoil:** MH60
    • Plots @ Reynols = 200,000
    • Plots

Required Build Materials

  • ELRS receiver
  • FlyingRC F4Wing Mini
  • Little Bee 20A ESC
  • 1104 7500 KV motor
  • 2 g Servo * 2
  • 2S 300 mAh LiPo
  • HQ 3018 propeller

Miscellaneous

  • Lightweight PLA
  • 180 × 180 × 180 A1 mini printer
  • Control horns and motor mount: PETG
  • M2 threaded rods
  • 5 × 2 mm magnets ×4 (Canopy)
  • 3 × 2 × 220 mm carbon tube
  • 2 * 6 mm screw *4 (Motor)
  • 1.7* 6 mm screw *4 (Servo)
  • 2 *8 mm screw *4 (Motor Mount)
  • 1 mm pushrod (Servo pushrod)

3D Printing

Material: Lightweight PLA

Strongly recommend reading this wiki before printing LWPLA:
Bambulab rc model pringting settings

Lightweight PLA properties vary between brands, so calibration and test prints are highly recommended.

Typical Printing Settings

Wing:

  • Temperature: 220–250°C
  • Extrusion ratio: 0.5
  • Spiral vase mode: On
  • Infill: 0%

Body:

  • Temperature: 220–250°C
  • Extrusion ratio: 0.6
  • Spiral vase mode: Off
  • Zero hopping
  • Avoid crossing perimeters during printing
  • Infill: 5% adaptive cubic

Assembly

ASM

ASM

  1. Control surfaces

    • Cut out the aileron cutouts along the trailing edge.
      aileron
    • Glue servo horn to aileron servo horn servo horn

  2. Wing Tip

    • Cut 1.75mm * 10mm printing wire glue to tip of wing, and glue wing tip
    • wing tip

  3. Servos and linkages

    • Mount the 2 g servos inside the fuselage pockets.
      servo
    • Connect the servo arms to the control horns using steel pushrods. The pushrod is
    • Check for smooth, slop-free movement.
      servo horn
    • Insert 3mm carbon tube to fuselage and connect wing
    • wing

  4. Motor

    • Mount the motor to the motor mount and attach it to the fuselage with screws.
      Motor

  5. Canopy

    • Insert 5×3 mm magnets into the canopy and fuselage slots. Drop on CA glue in before insert magnets
    • Ensuring correct polarity.
      magnets
  1. Final checks
    • Verify CG (use the two dots under the fuselage as reference). For the maiden flight, it’s recommended to keep the CG slightly nose-heavy.
    • Ensure the ailerons move freely and in the correct direction.
  • total

FC setting

iNav basic setting

Based on Flying RC F405 mini wing

  1. Calibartion gyro gyro cal

  2. Setting ports ports

  3. Mix setting Flying wing use aileron mix ports ports

  4. Servo and ESC Enable motor and servo output ports Servo trim by setting MID PWM value

  5. Basic tunning PID: ports

    ports ports Rates: ports ports Filters ports ports

  6. Receiver I use ELRS receiver, so CRSF protocal is selected ports

  7. Modes I use HORIZON RATE and Manual mode ports

Enjoy your flight