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High altitude flight test: ground3400m,flight altitude 7000m.

Posted by ZHAOFENG on June 2, 2015 at 7:20am

 High altitude flight test: ground3400m,flight altitude 7000m.

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ground3400m,flight altitude 7000m.

2015-05-19%2015-10-05.tlog

2015-05-19%2014-38-08.tlog

barometric altitude 7000m gps altitude 6847m .error 53m

airspeed 17m/s error 7-8m

Landing field altitude 3400 m.Spiral climb, guidance mode.Target height increasing to relative 3600 m on the ground, eventually reached cruising at an altitude of 7000 m height.
Barometric altimeter shows the height and the GPS height error of about 60 m, airspeed is low and the GPS speed.Actually not a lot of wind.Estimation is high altitude air density is low, should be a certain amount of compensation.Finally landed safely.Take about 45 3689654273?profile=original

The next day, at an altitude of 2800 m, spiral climb to 4600 m fly folding line after 1 hour.View the data:
7-8 m airspeed error.Error 80-90 - m.

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Comments

  • juan pablo gayoso September 23, 2015 at 8:51am

    Hi. Great Job!...can you tell us about your power setup: what kind of Motor-Batteries combination did you use. and what is the time of flight.

    Thanks

  • Antonie Kruger June 3, 2015 at 6:33am

    Hi, well done fellas. The motor looks like a big multi-rotor motor. Could you give us a breakdown of the power chain.....motor, ESC and battery solution.

    Thanks, very impressive. Did you program the spiral climb out before the grid flight?

    Antonie

  • ZHAOFENG June 2, 2015 at 11:30pm

    Take-off weight 3.2 kg

  • ZHAOFENG June 2, 2015 at 11:30pm

    Did not increase the length of the wing.

  • Moderator
    Gary Mortimer June 2, 2015 at 10:41pm

    Do you have wing extensions on your talon?? 

  • ZHAOFENG June 2, 2015 at 9:35pm

    And in low altitude flight at ordinary times didn't do special setup and modify. High altitude take-off is very difficult, once off the ground, the difference is not too big. From the flight log, low rate of climb with faster speed is one of the biggest differences. Battery didn't do heat preservation processing, don't be cool, flight will spontaneous heat.

    My English is not good. I'm sorry.

  • MarcS June 2, 2015 at 1:46pm

    Nice flights!

    Agreed that Talon is a nice platform, I´m also flying it for mapping and tests :-)

    I´d also like to know more about your setup and the missions you are flying. 

  • Moderator
    Gary Mortimer June 2, 2015 at 11:36am

    Got to love the Talon

  • Mark Jacobsen June 2, 2015 at 9:48am

    Very impressive! Can I ask what motor and prop you were using? My team is interested in operating a Talon at high elevations, and has actually been discussing what power system would be ideal. Also, did you have issues with the batteries operating in such low temperature environments?

This reply was deleted.