The MaxiSwift flying wing has donne successfully a low altitude flight autonomous mission (< 30m AGL) under flight plan piloted by the ArduPlane v2.73-xp1. A color camera onboard with an OSD display in real time the video of the flight and the data on the ground station screen. (Wind 7 km/h, gusting 15 km/h)
- Avionic setup:
- ArduFlyer v2.5.2 (RCtimer)
- firmware ARduPlane v2.73-xp1 (JLN version)
- GPS: Crius CN-06 V2 (Ublox NEO6M) updated by JLN
- Airspeed sensor MXV7002DP
- OSD Rembizi
- 5.8 Ghz Video transmitter
- CCD color camera for FVP
- Receiver: Multiplex RX-7 M-link
- Transmitter: Multiplex Royal EVO9 M-link 2.4 Ghz
- Lipo 3S 2650 mAh Turnigy
- Brushless motors Spitz 15 #85570/200 Watts 1130KV
- propeller 10x7 APC-E
- ESC 40A for the motor
- Take Off Weight (TOW): 1240 g
- Flight time: about 15 min
Below some photos:
Full mission photos and data at:
More infos at:
https://github.com/jlnaudin/x-drone
http://diydrones.com/profile/JeanLouisNaudin
Comments
Here a video of the full autonomous mission #28 done on Dec 15, 2013 under WINDY (19 km/h) and GUSTY (30 km/h) conditions. The flying wing is fully piloted by the firmware Arduplan v2.73-xp1 in AUTO mode following the flight plan.
- 8 waypoints have been loaded in the APM, the wind is blowing from south and the waypoints location points have been chosen so to fly above the most turbulent areas for testing the PID tuning.
Best Regards,
Jean-Louis
Here a video of a full demo of the MaxiSwift v1.00 model for X-Plane v9.70 tested in HIL mode simulation with an APM v2.6 IMU board connected through the Mission Planner.
The virtual model of the MaxiSwift fly on X-Plane as the real model and uses the same PID parameters.
Best Regards,
Jean-Louis
NEWS: the MaxiSwift flying wing model v1.00 for HIL simulations on X-Plane v9.70 with the APM is just released....
You will find the tutorial for the setup at:
https://github.com/jlnaudin/x-drone/wiki/X-PLANE-TUTORIAL:-MaxiSwif...
Enjoy,
Jean-Louis
I have added an optional TX with a TV screen which shows the video of the onboard camera for FPV guys in my MaxiSwift model v1.00 for X-Plane... (see below some screen shots)
https://raw.github.com/jlnaudin/x-drone/master/MaxiSwift/MaxiSwiftX...
The version 1.00 of the MaxiSwift for X-Plane v9.70 seems, ok and works in HIL mode simulation with the same PID than my real model. I am writing the tuto and I shall very soon release the v1.00 model.
stay tuned on the blog...
Regards,
Jean-Louis
I strongly recommend to add a 4700 µF/16V capacitor on 5V DC line directly plugged with short wires on the output of the APM. This capacitor avoid voltage drop (and thus the reset in flight of the APM) on the 5V DC line when the servos drawn too much current.
Regards,
Jean-Louis
@Manu,
Yes, I fully confirm what said Gary and Thomas, this is a ferrite toroid for EMI suppression.
FYI, in the photo, this is not an ESC but a 5V uBec, but in the real model, I have used a true ESC (of course).
Regards,
Jean-Louis
@Gary,
Many of the better ESCs have switching BECs, instead of linear regulators, and there will be a little switching frequency noise on the BEC power line (red wire) on the throttle cable. This switching frequency noise is usually mitigated by wrapping the throttle cable through a ferrite torrid (green ring) as described above.
Regards,
TCIII ArduRover2 Developer
That's a ferrite ring, the better speed controllers come with them. I think they help quieten down MOSFET noise or the like but don't quote me.
Very impressive Jean-Louis, as always.
In your connection diagram, I can see you are rolling your throttle wire around a green (metal?) ring, is this necessary or just desirable ? what is the real effect of that ?
Tx
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