‘Tailsitter’ flying robot hovers and recovers easily, by ETH Zurich

Researchers at ETH Zurich have developed a new algorithm for robustly controlling a tailsitter flying machine in hover position.

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Comment by Gary McCray on June 4, 2015 at 2:52pm

Great accomplishment - ETH does really nifty stuff.

Clearly they are currently using external camera position determination, but it seems like it could translate to on board autopilot control using accels and gyros pretty easily.

I suppose it is really just a modification of the stabilization solution for a dual copter.

Will be interesting to see how it performs in gusty windy conditions though, so far that has been the bane of all of these things with a lot of vertical surface area.

(Including the full scale ones).

Best Regards,


Comment by Greg Dronsky on June 4, 2015 at 7:06pm

Great work. Thanks for sharing.

Comment by Randy on June 4, 2015 at 7:42pm

Yeah, ETH does great stuff.

I'd recommend the guy wear gloves if he's going to get that close to the blades though.

Comment by johnkowalsky on June 5, 2015 at 8:34am

I don't think that the tailsitter is necessarily much more affected than some of the quad fixed wing hybrids that have been posted here. It's practically the same.

Wind is a problem for real VTOLs too. AFAIK harriers had problems with it and it took them a while to figure out how to mitigate that effect. 

Comment by Michal Ulianko on June 6, 2015 at 12:38am

I hope it will make it to PX4 someday.


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