I'm a very inexperienced flyer. A crashed my Disco around a month ago, the camara got broken. I returned it to Parrot and they exchange the whole package for a brand new Disco. They even paid for the post.
Thanks again Parrot.
The ultrsonic sensor is simply an altimeter that provides the actual altitude above ground at low altitude (below 8 meters I think). Much more accurate than the barometric altimeter.
The camera allows the system to know precisely the ground speed at low altitude. Much more accurate and real time than the GPS speed.
Both information are critical to control the landing function of the Disco.
No way. The ultrasonic sensor cannot be covered to work properly.
@Vpadfsu , My closest call to date, after a 43 minute flight, has been 4% battery remaining. I took off with 92%, and the Disco continued along the route and landed well past 10%...
I can assure you that I won't be cutting my battery time that close ever again...