Quadrocopter flight at an altitude of 1 km

Always been interested in how the world looks like from above. They see the bird, which is not visible on the map googleEarth. So it multicopter hobby, flying in the sky, photograph, film and video.






First quadrocopter heroically overcame the height of 5 meters and returned to earth, becoming a pile of rubble, stayed in the air for a minute.

The following models were flying farther, higher and longer. The dream of a personal altitude record, raged in the soul more and more.

For flight in height, the unit must fly as long as possible. At least 20 minutes, this time is enough to climb to a height of 1 km, down and have a supply of "fuel in the tanks" Incident. Decided not to use boosters, powerful transmitters, bulky antenna, all elements must be full-time.

The initial configuration: h5>

• frame with spaced front rays, as rays 16mm aluminum tube. 2 textolite plate;
• controller Naza v2 + GPS;
• telemetry Naza miniOSD;
• engines Sannysky 3506 / 700kv;
• regulators: HobbyWing 30A-Pro OPTO;
• Propellers GF 12x4.5;
• 2 x battery 6200mAch / 4S;
• 500mW video transmitter Omway, 5.8gGts; li >
• Camera Gopro3 black edition;
• equipment Futaba 8FG
   After the first flyby, replaced propellers on carbon 13x4.0 (had a little taller rays). It is possible to increase the flight time from 20 to 28 minutes.
  
  
  
  

  Flight to record h5>
  On Saturday morning, it is time to "H". Left in the field, away from populated areas.
  
  To assess the situation, the behavior of batteries in freezing temperatures, the first flight was at an altitude of 600 meters.
  
  Despite all the successful tests, the final flight took place in an easy jim-jams. Lifting time of 9 minutes, fixed record and run back. Down on the copter is always longer than the rise, we can not allow "swing».
  
  

  Ways of descent from the heights: h6>
  

  1. smooth descent;
  2. downhill spiral;
  3. descent upside down. third way is the fastest but also the most dangerous, the most optimal - downhill spiral, but quadrics down the first method.
     
     

     Video flight (gopro + video recorder) h5>
     
     
     

     The champion h5>
     
     
     

     Conclusion: h5>
     1km to win is possible, but it is at the limit of work equipment Futaba, despite the statement by the manufacturer of the range 3km, throughout the ascent and descent of quadrics failsave often caught and tried to return home on their own.
     
     Antenna receives the video signal should be very good, often lost, the signal, although the glasses Fatshark signal was received with virtually no interference.
     
     Batteries at low temperatures, warm necessarily because during the descent, the load on them decreases and they "freeze" losing its capacity.
     
     Pay special attention to safety - when failsave controller Naza returns home if copter is at a considerable height above the head, the signal equipment is lost completely.
     
     Down from a height of better spiral copter behaves much more stable.
     
     Goupro better to put in the photo mode, the picture should get more interesting than the video.
     
     

     A few photos from a height of h5>
     
     
     
     
     
     
     
     
     
     
     
     
     Source: habrahabr.ru/post/202422/