Altitude of Loiter mode

How high do I have to be off the ground to engage in Loiter mode?  I have an APM 2 purple board with gps and a magnetometer and barometer, but no sonar.  Do I have to be at least a certain mimimum height before engaging Loiter mode?  Or can I be hovering at say 2 or 3 feet off the ground?  I want to test the loiter mode, but since this is my first time taking my hexa out for a spin, I'm a little nervous about flying it more than just a few feet off the ground, just in case there's a glitch in the hardware or a mechanical error, not to mention the newbie pilot.  I greatly appreciate any advice, thanks.

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Permalink Reply by Charl van Hemert on May 2, 2012 at 12:06am

Hi James, I have been hovering around for a few months now and is still scared to switch to altitude hold and loiter mode. All my stabilise mode settings is now correct as I can hover very stable and in control. The first step was to switch to altitude hold an I find that it climes to much and when it finally descends it happened to fast and may have crashed, so I tuned it back to stabilised mode to prevent crash. After apm adjustments I got it to alt hold within 1 to 2 meters. I am now busy with loiter settings, as it overshoots franticly and I switch back to take control again.

So it is not easy to "trim" these things. I am curious to find out if someone will reply with advice that may help us.

Permalink Reply by James Dinh on May 2, 2012 at 8:18am

Yeah,  I'm playing it safe as well.  I've read too many posts where things went wrong like the poor guy who's robot went into the ocean after running away crazily.  Got to get those values correct and keep reading the blogs and forums.  Better safe than sorry.  You should upload some pictures of your hexa build.  I'm very interested in seeing more.  Is it your own design or something from DIY?  Looks awesome!

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