QuadRanger VTOL

The QuadRanger is a VTOL conversion of the Volantex Ranger-Ex. It’s a 1980mm wingspan plane that is capable of vertical takeoff and land.



Configure the frame as shown in QGroundControl below (do not forget to click “Apply and Restart” in the top).


Conversion kit


  • The basic parts required are;
  • Pixhawk or compatible
  • Digital airspeed sensor
  • 3DR Power module or compatible
  • GPS

For a full parts list with links to Hobbyking EU and International warehouse see: QuadRanger-VTOL-partslist

The image below depicts the parts required for one wing.

QuadRanger Parts


The tools required for the conversion are;

  • A Dremel or similar rotary tool
  • A hobby knife
  • UHU POR glue
  • CA glue
  • Tape-line
  • Tape

QuadRanger conversion tools

Wing conversion

A full build log is provided in the following video.

Please note that the conversion in this build log is performed on a wing that shows damage from a previous conversion. 

Cut both 800mm square carbon tubes to a length of 570mm and 230mm.

Making a slot in the Styrofoam wing 1.5cm deep using a rotary tool with some form of guidance to keep a fixed depth. The slot should be the length, depth and width of one 230mm square carbon tube. It should be located as indicated below.

QuadRanger carbon tube slot

Glue the 300x150x1.5mm carbon sheet to the 230mm carbon tube using CA glue and create an opening to run wires through. Insert the wires for power and signal to the ESC’s. Using UHU POR glue the sheet and carbon tube to the Styrofoam wing as indicated below.

QuadRanger sheet attachment

Using CA glue, glue the 570mm square carbon tube to the carbon sheet. It should be located 285mm from where the wings join. The tube should be centred relative to the vertical area of the wing. It should extend exactly 165mm on both sides.

Attach the motor mount to the motor. With another motor mount plate and 4 M3x25mm screws clamp the motor on the end of the square carbon tube as indicated below. Attach the ESC’s with tie wraps to the carbon tube. When using the Afro ESC be sure to connect at least signal and ground wire.QuadRanger motor and esc

Wiring and configuration

The outputs of Pixhawk should be wired like this (orientation as seen like “sitting in the plane”).

The servo direction can be reversed using the PWM_REV parameters in the PWM_OUTPUT group of QGroundControl (cogwheel tab, last item in the left menu)
  • MAIN1: Front right motor, CCW
  • MAIN2: Back left motor, CCW
  • MAIN3: Front left motor, CW
  • MAIN4: Back right motor, CW
  • AUX1: Left aileron
  • AUX2: Right aileron
  • AUX3: Elevator
  • AUX4: Rudder
  • AUX5: Throttle

For further instructions on wiring and configurations please refer to the Standard VTOL wiring and configuration page.


If you have any questions regarding your VTOL conversion or configuration please visit http://discuss.px4.io/c/vtol.