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    Why frames are soo expensive?

    $700-$800 for a hex 650. I admit my ignorance. I want to build a multirotor and I have been searching for one that I can buy a DIY kit that have all of the components and find videos showing how to do it. Any hints are welcome.
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    Hidden Flight Controller restrictions/tricks

    Technically, what can they hide or do ?
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    Hidden Flight Controller restrictions/tricks

    What can a proprietary FC hide or do without our knowledge or control? What can they do beyond the following example? DJI blocks flying above Tiananmen Square with software update http://www.dronejournalism.org/blog/dji-blocks-tiananmen "In the release notes for the latest upgrade of its...
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    Why frames are soo expensive?

    Thank you
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    Why frames are soo expensive?

    Can you please provide a hint about the "huge list of dangers"?
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    Why frames are soo expensive?

    Thank you for the tip.
  7. B

    Why frames are soo expensive?

    I am a newbie and I am surprised by the frame prices? Can you please explain the factors that contribute to the cost?
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    Performance Metrics ?

    Thank you for the hints. I did a little homework. - Can we use the following as figures of merit for quantitative comparison of the performance of UAVs: Max Speed (Km/h), Cruise Speed (Km/h), Ferry Range (Km), Ceiling (m), Rate of Climb (m/s), Thrust-to-Weight ratio, Thrust-per-Watt, Payload...
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    Performance Metrics ?

    I use the dictionary definition: The accomplishment of a given task measured against preset known standards of accuracy, completeness, cost, and speed.
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    Skyjib Heavy Build Sheet -Am I Missing anything?

    Can you please share with us your progress Did you build it?
  11. B

    Performance Metrics ?

    How do we measure the performance of a multirotor? What metrics we can use to compare between different designs?
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