Skyhunter 1800mm with pixhawk for FPV setup.

I am coming from the world of quads and traditional helicopters, I fly a few DIY quads, a phantom 3 and a Align 550L Dominator for fun and I decided to give fixed wing FPV a try. This is my first fixed wing build, but I have experience on other platforms which should help. For this build I will be using the SkyHunter 1800mm by Origin Hobby. I chose this aircraft because of its good reviews and large cargo capacity. One of the nice things about the Origin Hobby SkyHunter is that is comes mostly assembled and painted. My current ArduPilot configuration has the ailerons setup as elevons (channels 1 and 2 to ailerons) and the elevator on channel 5 (RC_MAP elevator) with channel 5 and channel 2 transmitting out of the RC transmitter with elevator control. I may switch to a Y-cable for the ailerons if I decide to switch to PX4_pro since I can't seem to find support  for elevons or RC channel mapping in PX4 Pro. PX4 might also be out because it seems that there is a strict requirement for a airspeed sensor. For my build I will be using the following components:


Turnigy NTM PropDrive 3542-1250kv motor

HK Blue 70amp ESC with BlHeli flashed (a recycled part from a 450 helicopter)

Master Airscrew 10x7 3-blade propeller (tractor as a pusher)

2 3S lips connected in parallel, around 10000mah total


Radiolink PixHawk, currently running ArduPilot 3.7.1, but may switch to PX4 Pro

u-Blox NEO 8M (primary) and NEO 6m (secondary) GPS units

Standard APM/Pixhawk 90amp volt/current sensor

DJI BEC (recycled) as power supply for servos

3amp 5volt power supply module, as backup for pixhawk incase of current sensor module failure and to power FPV gear

3 metal gear digital servos (recycled from helicopter)

I do not currently have an airspeed sensor


Generic 1000TVL camera

Mini minmOSD 

Black Mamba VTX running 2 watts output at 5.8 GHz


RFD 900x for both telemetry and RC control in air and on ground units, output 1 watt on ~ 900MHz and 57000 baud

9XR Pro transmitter, using trainer port to output PPM to RFD900x on ground

I will put some completed assembly pictures below.


I had originally has na OS motors 2820-900kv motor, it was an utter failure, the motor burned up after about 30 seconds and never had enough thrust to take off. The replacement NTM PropDrive 3542-900kv is a great performer, it has ample power and reserve. I would estimate that I could make level causing flight with about 35% throttle. One issue I had was the canopy, which came off early in the flight, the damage on the canopy in the pictures was from prop strikes as the canopy flew off. I suggest using velcro on the canopy rather than relying on the magnetic strip that the plane comes with, lesson learned. I had good flight control with 35 to 40 throttle. Otherwise the overall impression of the plane was good. 

The RFD900x performed beautifully for both telemetry and RC control. There was no noticeable lag on part of the RC control link. The diversity antennas can be seen in the rear of the fuselage. I may have to move them thought, because they cause the servos to jitter if the TX power is set higher than 20 db when using analog servos, this may have improved since switching to digital servos though. The telemetry signal remained throughout the flight although I didn't take the plane out very far because of the canopy mishap. 

A copy of my ArduPilot parameters are attached.




Velcro on canopy, much better.


u-Blox Neo 8M on top, Neo 6m is below the wing "screw bar" in front. The 900 MHz antennas are in the back.


NTM PropDrive 3542 with Master Airscrew 10x7 3-blade prop. 900MHz antennas shown.


Showing Pixhawk, OSD (left), DJI BEC (left behind OSD), BlackMamba VTX (left behind DJI BEC), RFD900x (right to far back). The wiring is a mess while I get things tuned.

ArduPilot Skyhunter Ardupilot (Elevon Config).params

10x7 (3 blade) 2501g weight.pdf

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  • Your feedback helps me a lot, A very meaningful event, I hope everything will go well
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  • Hi, I'm building a conversion into a QuadPlane. I've just done first vertical flight, and now I'm looking for some horizontal configuration. I want the propeller to be as small as possible, in order to keep the copter motors closer from the wing. I'm very much impressed by your setup. Which motor do you use? You mention 950 kV and 1250 kV. How much thrust have you got? Do you think it would be running with a three-blade 9'' prop? (I mean only the cruise, not take offs). Regards
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