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 Post subject: Re: Rescue question?
PostPosted: Wed 19. Feb 2020 22:56:49 
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Joined: Sun 07. Jul 2019 18:47:54
Posts: 15
jjuk wrote:
Cyclic ring looks low at 5 degrees, what heli is it?
Don't think that would affect a rescue climb though? Try increasing this to 9-10 degrees, make sure the servos are not binding at max/min pitch as you adjust it.

Noted

jjuk wrote:
Also, in a skids down hover, hit rescue. Does it climb?

It does climb and climbs well.

Quote:
Stabi -> Rescue collective pitch 47% (0% <-> -10%)

Not sure what happened here. I will check again this weekend then take it out for another flight.

Quote:
Servo Travel Correction
Servo Travel Correction -> Pitch (CH1) -> Maximum 14 (-64 <-> 64)
Servo Travel Correction -> Elevator (CH2) -> Maximum 4 (-64 <-> 64)
Servo Travel Correction -> Aileron (CH3) -> Maximum 2 (-64 <-> 64)
Servo Travel Correction -> Pitch (CH1) -> Minimum -5 (64 <-> -64)
Servo Travel Correction -> Elevator (CH2) -> Minimum -30 (64 <-> -64)
Servo Travel Correction -> Aileron (CH3) -> Minimum -5 (64 <-> -64)

Quote:
Can you get these to closer to zero by adjusting the link lengths with a swash leveller, are they required? That's quite a lot of correction.

Will check these again


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 Post subject: Re: Rescue question?
PostPosted: Thu 20. Feb 2020 3:07:01 
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Joined: Thu 05. Oct 2017 20:06:35
Posts: 306
If its climbing fast in a skids down rescue, then I think increasing cyclic ring will help.
I think this is used to control cyclic roll rate.
If its too low it will take longer to rotate 180° before climbing. If this takes 1 second then that fits with your symptoms. Set to 10°, check for binding and go test it.

Also check 6° setting is correct.


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 Post subject: Re: Rescue question?
PostPosted: Thu 20. Feb 2020 22:45:59 
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Posts: 15
Just made some changes based on some of the above recommendations. Here's the revised .4ds file


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 Post subject: Re: Rescue question?
PostPosted: Thu 20. Feb 2020 22:47:07 
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Posts: 15
Just made some changes based on some of the above recommendations. Here's the revised .4ds file

And the rescue collective pitch is indeed @ 80% this time :D


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21 Feb 2020 -.4ds [255 Bytes]
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 Post subject: Re: Rescue question?
PostPosted: Thu 20. Feb 2020 23:50:22 
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Posts: 306
So is this still an issue? Is it flipping over faster now?

What happens if you increase acro delay to 3 seconds?


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 Post subject: Re: Rescue question?
PostPosted: Fri 21. Feb 2020 22:51:32 
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Joined: Sun 07. Jul 2019 18:47:54
Posts: 15
jjuk wrote:
So is this still an issue? Is it flipping over faster now?

What happens if you increase acro delay to 3 seconds?


Haven't flown it yet. Will do so this Sunday and keep you updated.


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 Post subject: Re: Rescue question?
PostPosted: Tue 25. Feb 2020 18:17:27 
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Joined: Sun 07. Jul 2019 18:47:54
Posts: 15
Just flew my heli today and all is good. Rescue now works as it should :D

Thanks everybody for all your help esp jjuk :)


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