Autonomous Landing of Unicorn Wing using Paparazzi Autopilot

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Comment by Wim De Wilde on December 28, 2008 at 3:49am
Nice landing! What sensors are you using to monitor airspeed and altitude?
Comment by Daniel Morgan on December 28, 2008 at 8:12am
Just GPS
Comment by Doug H. on February 18, 2009 at 4:02pm
Does the propeller get harmed on landing? If there is a danger of damage, how is the damage avoided? Is there such a thing as full stop on the motor so the blade can completely stop before landing?

Thanks in advance for any information!
Comment by Reto on February 18, 2009 at 5:11pm
After many wings flying, I broke a propeller only once because I landed on something much harder than grass.
Comment by Daniel Morgan on February 18, 2009 at 7:24pm
We use a prop saver. They are simply a rubber band that holds the prop on. Works well on small airframes like this. On larger ones we simply don't worry about the props breaking since its pretty rare

Also yes there is a way to stop the blade before it lands and is done so by setting the engine brake on most ESC's
Comment by Jack Crossfire on February 18, 2009 at 9:28pm
The trick with autonomous landings is to hit a confined, precise spot consistently. The best autopilots can be hand caught in the bed of a truck. What the pros sell as "automated landing" is originally developed for guided weapons.


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