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09-29-2014, 12:11 PM | #1 (permalink) |
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Join Date: Jun 2012
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Self level and crash on 450 pro
This what happened to me few days ago
While self was on at 40 percent. I did not set the servo travel properly or may be not at all. May be this the reason it has too much angel of attack. Does servo travel on aileron and elevator effects self level. I have the second crash again yesterday. Kindly help.https://vimeo.com/107497655 |
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09-29-2014, 05:48 PM | #2 (permalink) |
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some questions:
On the Horizon tab are your set for "upright self level" or "ACRO"? Were you going inverted with SL on when you crashed? SL does not work inverted if you have "upright self level on" The heli will try to fight being inverted. Maybe that is what happened. Here is a tip: Since you are going invtered, make sure you set the Horizon mode to ACRO. Don't fly around with SL on. Keep it in Rigid and use Rescue as needed if you get messed up.
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This is your brain on helicopters! Trex 700L, Trex 700N DFC HB gasser,Trex 700N V2 HB gasser, Trex 550X. Spirit or BD3SX |
10-01-2014, 07:07 AM | #3 (permalink) |
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Thread Starter
Join Date: Jun 2012
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On horizon tab I have ACRO.
Yes I was in self level mode. I saw in the video people are flying self level on. I will take that advice thanks alot this is nice one. |
10-01-2014, 07:29 PM | #4 (permalink) |
Join Date: Dec 2008
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I fly in ACRO with SL on and have no problems.
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10-02-2014, 03:36 AM | #5 (permalink) | |
HF Support
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Quote:
"Rescue mole" is when you set the travel directions properly in the diagnose screen, but then alter the TX to reverse collective when in mixer screen has the servos going in the wrong direction. Will fly and self level OK in this mode, but then rescue will drive the heli into the ground. (in "goes to pos" mode, will flip the heli as it drives it toward the ground). Once you leave the diagnose screen (where the bars show the TX readings for the unit), NEVER alter the TX servos for that model again.
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TRex 700E Pro DFC HV (BD3SX) - Gaui X5 (6S/BD3SX), Blade 130X, RealFlight, Heli-X, Taranis+DSMX |
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10-02-2014, 08:58 PM | #7 (permalink) |
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Thread Starter
Join Date: Jun 2012
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No this is not rescue mode this is self level mode.
Self level was on when it went to the ground. I went in inverted with self level on. I did not use rescue at all. I did not alter the servos after finishing my setup. |
10-06-2014, 03:06 PM | #8 (permalink) |
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Thread Starter
Join Date: Jun 2012
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After the crash I have replace the parts and put it in the air again.
I had crashed again. Heli went the same way to the ground as he went to the ground in my above uploaded video. Soon I will post the new crash video. My servo travel was different this time and I have different settings on collective. self level was off this time and rescue was not used at all but after heli decided to the ground I put self level on but 3sx did not listened to the command and hit the ground. |
10-06-2014, 04:34 PM | #10 (permalink) |
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Join Date: Jun 2013
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this is very bizarre...to say the least. and you are absolutely certain that you are not hitting rescue or SL and that is when the bird is deciding to go south? please triple check your diagnose screen to be sure all bars move the proper direction.
also, a side note, fly a little easier when learning stuff like this. your very hard on the collective and cyclic. gently roll over to inverted and make small adjustments to keep her there. you are very good at hovering nose in from what i can tell. so learn nose in inverted hovering first instead of tail in. just some notes, not criticism at all....
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10-07-2014, 07:36 AM | #11 (permalink) |
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Thread Starter
Join Date: Jun 2012
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Thanks for your advise I will try to that when I will fly next time nose in inverted.
I did not have time to repair my heli yet I can make a video of my diagnose tab and mixer tab or pictures. So you guys can see what I am saying. I don't want to blame 3sx but it is not behaving as it should be. I am setting my heli below recommendation May be this the reason. Or to much angle of attack. |
10-07-2014, 02:05 PM | #12 (permalink) |
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Join Date: Jun 2013
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it looks to me like something else is going on. i am just not sure what. the heli looks very stable in nose in upright hover. i find it odd that as soon as it goes inverted it goes nuts....there must be something off with some programming. yes, send us a vid of the diagnose screen in action, where we can see the sticks on the transmitter at the same time....see what i mean? make sure they move together...
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Gasser Mike Team KDE Direct, TRM Power, Byron Fuels, MKS Servos |
10-07-2014, 03:53 PM | #13 (permalink) |
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Join Date: Mar 2007
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Tagging along...
Brian
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Brian |
10-08-2014, 10:39 AM | #14 (permalink) | ||
HF Support
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Quote:
Quote:
Both times it looks like the heli was effectively driven into the ground when inverted. So lets start doing some checks. a) Video of the 3SX diagnose and mix screen, especially with movement of the swash and sticks. b) TX pitch and throttle curves you use with the 450 model c) The pitch of your blade at full up, mid-stick and full down As you know, the 3SX will NOT automatically adjust the collective for upright and inverted flight in self level mode. Only when you use rescue will the collective be overridden. When inverted down is up and up is expensive.
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TRex 700E Pro DFC HV (BD3SX) - Gaui X5 (6S/BD3SX), Blade 130X, RealFlight, Heli-X, Taranis+DSMX |
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10-08-2014, 01:16 PM | #15 (permalink) | |
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Join Date: Jan 2014
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Quote:
Did the heli flip inverted by itself this time? Only reason I ask, is I've had my 3sx unit freak out on me and flip my heli inverted in a split second, it was SO fast. It was like it used literally all of my nearly 12 degrees of cyclic deflection and just turned itself inverted. I was quick on the draw and hit rescue, and it climbed out inverted, so I didn't crash. Still don't know why or how this happened, so I'm curious to know if yours flipped itself like mine did.
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10-10-2014, 01:54 PM | #16 (permalink) |
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Thread Starter
Join Date: Jun 2012
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Sorry for late reply I will send a video soon of the diagnose tab.
when ever heli go inverted it goes towards one side which is weird. |
10-10-2014, 02:00 PM | #17 (permalink) | |
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Join Date: Jun 2012
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Quote:
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10-10-2014, 02:05 PM | #18 (permalink) | |
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Thread Starter
Join Date: Jun 2012
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Quote:
One more thing when I will repair the head it will give me new settings for collective pitch which will not represent the settings of crash. But rest will be same. |
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10-11-2014, 05:01 AM | #19 (permalink) | ||
HF Support
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Quote:
Was working on the calibration script in the Taranis and found my 130x did not have 0 pitch at 0 collective. (no wonder it struggled to climb inverted). Want to ensure the same thing does not happen with you, so when you tell your 450 to climb when inverted it does (unless the 3SX really is at fault).
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TRex 700E Pro DFC HV (BD3SX) - Gaui X5 (6S/BD3SX), Blade 130X, RealFlight, Heli-X, Taranis+DSMX |
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