FPV wing racer VTOL tailsitter
Description
I liked so much the original FPV wing racer. It flies cool and pocket-size is amazing. It also pretty durable when printed with pla+ or pla-cf. But it is tricky to launch. So i decided to add inav flight controller to use autolaunch feature. Also 2g servo is much better for it because it has smaller size and less weight. I used to fly with single 1104 7500kv motor with gemfan 2540 prop. It flied fast ang stable about 7 minutes with 2s 550mah battery. But I wanted something special so I decided to make VTOL version of this wing.
I used darwinfpv f411 15a aio flight controller because I have one left from my darwinfpv baby ape quadcopter and this controller supports inav firmvare. For VTOL inav use separate mixers for hover mode and horizontal flight. Unfortunately inav stopped support stm f411 based fc. Also inav for f411 FCs has only one to setup. So I build my own version of inav 8.0.1 with two mixers support.
I used this guide to setup mixer transition.
Parts I used:
* Darwinfpv f411 1-3s 15A aio (without elrs)
* Happymodel Fyujon V2 2in1 elrs receiver + openvtx
* DSpower DS-M005 2g plastic servo x2
* Hglrc specter 1303,5 5500kv motor x2
* HQProp T3x3x2 prop x2
* I also added 9042 5v active buzzer. Soldered it directly on the FC pads.
Materials used:
* Purple ESUN PLA-CF for frame and wings
* Clear Elegoo PLA+ for first layer of wings and winglets
I used M2 screws with nuts various length to mount FC, motor mounts and wings
Wiring diagram
You should desolder power pads on Fyujon to separate vtx and rx power supply.
The servo pwm wires are soldered directly to the pads between FC and ESC boards. There are becin, s1, [s2, s3, s4], 5v, - pads (s2-s4 pads are not marked).
Flashing firmware
Flash the firmware via the Inav Configurator through DFU mode.
After flashing the firmware, the osd fonts need to bee updated in the OSD tab of configurator
Some video links:
https://youtube.com/watch?v=1e0Une8NALk