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PostPosted: Wed 26. Sep 2018 13:55:05 
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Joined: Thu 05. Oct 2017 20:06:35
Posts: 32
I was just at the field. Flying in controlled circles. With about 2 mins left on the pack (full pack is 4 mins), I then placed the heli into a hover about 50ft up. I was piro'ing slowly when I lost orientation and the heli started to drift, so I hit rescue.

The heli immediately levelled the disc but at the same time, it applied negative pitch and smashed straight in to the ground, skids first.
The heli was drifting tail-first at about 20 degrees when i hit rescue, skids down. Rescue must have thought i was upside down?!

This was not the 1st rescue of the day. I'm not good at flying so use it quite a bit. Its rescued me several times today, including one that was upside down, it gained height, then flipped back skids down. Fantastic.

I used rescue earlier in the flight, and that worked correctly, but this last time, not so lucky. FBL rescue thought I was upside down. :roll:


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PostPosted: Thu 27. Sep 2018 8:07:34 
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Joined: Mon 29. Apr 2013 16:06:44
Posts: 8075
We are very sorry to hear about the problems.

But please check this page carefully:
http://manual.spirit-system.com/index.p ... ise_Rescue

There you can find possible explanations why it failed. After fixing it it should work always correctly.
Unfortunately without any data about your model I can't help you more.

Please let me know if something will be unclear or you need more help.

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PostPosted: Sun 30. Sep 2018 17:18:16 
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Thanks. I've read the page. My helicopter has no fan, was initialized flat, the bec test showed no issues during initial setup. Vibes test showed 'OK' on all 3 axis with and without tail blades. All servos were at 90 degrees and the swash was perfectly level. Blade pitch was exactly +- 12 degrees.

The rescue was working perfectly earlier in the same flight.
Multiple times, it rescued correctly in the same flight.

Then on the last activation, it sensed the helicopter was inverted when it was not, and smashed it into the ground skids first.
I suspect this is a software bug.


Last edited by jjuk on Sun 30. Sep 2018 18:10:44, edited 1 time in total.

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PostPosted: Sun 30. Sep 2018 17:56:52 
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Joined: Mon 29. Apr 2013 16:06:44
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If there is for example wrong settings then it all can work perfectly at the beginning. But with increased flight time the error can pop up, especially if more demanding maneuvers were performed.
So even with big problems it will work usually well at the beginning.

For example there can be wrong position, swashplate type while helicopter can still fly. So it is very important to verify everything.

Did you verified vibrations in the Spectrum Analysis (PC software)?

The rescue is used by thousands of pilots around the world for several years. So software error can be excluded.

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PostPosted: Mon 15. Oct 2018 13:27:39 
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Joined: Thu 05. Oct 2017 20:06:35
Posts: 32
OK.

I've finished rebuilding the heli so now it's time to do the setup again.
Can you please help me work out what I did wrong in the setup ?

The heli is a Gaui X3.


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