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Post by osidak on Aug 1, 2012 21:33:32 GMT -4
Been getting some hover practice in with the 600 while I wait on parts for the 450(s) First off that CC Ice 100 made a world of difference. I can get 8 minutes and I am putting 3.8A back into a 5A pack
The last two packs I have noticed that for some reason the tail is no longer holding and is drifting to the right. The first pack I thought it was the wind pushing me around. The second pack I upped the gyro to see if that would help and got some pretty severe tail wag. Landed brought the gyro back down took off again and it was still drifting.
Flew out the pack and when I was putting it away I grabbed ahold of the tail rotor blade grips and they had some play - don't remember them having play before - Unfortunately my tools are at the office so I could tighten them back up and check but now I am curious
The drift was always a constant drift to the right - I am running a governed head speed of 1840 with 100-100-100 throttle curve.
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Post by mattox on Aug 1, 2012 22:28:57 GMT -4
batteries could possibly be getting old and not putting the power out they used to. Running a gov can make the tail twitch or wag at times. try dropping ur gov gain 2 points and try again
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Post by osidak on Aug 1, 2012 22:46:28 GMT -4
Not sure I understand what you mean by gov gain - New to this as well. Friend helped me setup the gov
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Post by mattox on Aug 1, 2012 22:50:45 GMT -4
If your running a gov on ur ice 100 then you have a gov gain. on the first page(throttle) towards the middle left it will say gov gain with a drop down arrow. Put the gov on custom and drop the points by 2.
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Post by osidak on Aug 1, 2012 22:56:26 GMT -4
gotcha - will check that out give it a try - thanks
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Post by Valkman on Aug 2, 2012 6:40:27 GMT -4
Having the Gov gain too high will cause a wag not a drift. I had the same problem a few years back and it was the gyro. It flew ok at the start of the pack then it would slowly start drifting. What gyro are you using? Did you get rid of the tail slop or was it always there? Can you adjust the tail pushrod to compensate so the hail hovers ok? Check you tail servo is tight on the boom and it did not move. That's good flight times you are getting!
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Post by osidak on Aug 2, 2012 7:22:56 GMT -4
My tools are at the office so I will not be able to adjust/tighten the tail grips until I get home tonight - I am using the nano gt9 that came with the kit. Will check the servo tonight and after I am sure nothing is loose I will take it up and see if I can trim the drift out (if other things don't take care of it)
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Post by mattox on Aug 2, 2012 16:21:48 GMT -4
if you are running that gyro make sure u run it at 6v
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Post by osidak on Aug 2, 2012 16:36:56 GMT -4
it is currently running at 5.1v - running the CC BEC Pro so it is easy enough to bump up
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Post by Dr. Evil on Aug 2, 2012 21:32:17 GMT -4
it is currently running at 5.1v - running the CC BEC Pro so it is easy enough to bump up +1 on what Mattox said, the GT9 is very picky so make sure the voltage is correct. Otherwise go with a Spartan!
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Post by osidak on Aug 2, 2012 21:33:06 GMT -4
So I bumped the BEC voltage to 6v and I checked the tail rotor blade grips - there is more play than I would like there but everything was tight -
I adjusted the throttle curve for "position 1" which was no governor to be something other than linear as it was not giving me enough head speed at "hover" position and I was still drifting - Started thinking and it isn't drifting right but needs right stick to correct.
I landed and put about 7 clicks of right trim in and it was still drifting
At one point the right skid touched the ground and I got a pretty violent tail wag but Gyro gain was only set to 55%
I am wondering if maybe the gyro is going south - there was one point where I was hovering nose left and when I was coming back to tail in the heli felt really unsettled and I had a moment of "she is about to go in" and with simple hovering I haven't had that feeling in a while.
Damit forgot to try dropping the Gov gain but not sure that is the issue as I did some flying with the gov off.....
Think it would advisable to go up to the 16t pinion to get another 100 or so rpm in head speed
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Post by mattox on Aug 2, 2012 23:05:12 GMT -4
If your running a castle gov. ur idle up curves should be as followed....
norm:0,25,30,30,30 idle 1: 70,70,70,70,70 idle 2: 100,100,100,100,100
you should have no V curve in gov mode
And you should have absolutly NO trim in the rudder or sub trim. That could cause the same issue as well. Did you set up your tail in rate mode first?
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Post by osidak on Aug 2, 2012 23:47:21 GMT -4
yes to the tail setup - was adding trim to see if I could trim the drift out - normally everything is zero'ed. Trim did not help
as for norm is was at a linear curve 0 to 100 per the CC instructions and then I did Idle 1 at 80 across the board and idle 2 at 100 across the board.
I can adjust the idle 1 to 70 across and norm to what you are saying - If I may ask (so I understand) what is the rational for the 0 25 30 30 30
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Post by mattox on Aug 2, 2012 23:50:48 GMT -4
If you are running a gov the selected HS you put for the norm curve is what you run 30% across for. If you run a linear curve you are defeating the purpose of the gov then. trust me i asked the same thing a long time ago. And ive went through to many castle esc's to let one flame out on you
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Post by Valkman on Aug 3, 2012 6:27:29 GMT -4
You have a 450 can you try the gyro in that? Can you trace down where the slop is in the tail or can you show a video of the slop? I have a good few flights on my 600 and there is little or no slop. Doc mentioned the Quark gyro have a look at them. Chris flys them and he is "slowly converting us" lol. They have a sale on. I was going to mention earlier ( but forgot ) that your HS is a bit low. I would put the bigger pinnion on. When testing don't get brave and start doing circuits until you have it sorted. Just hover. If it wags land and try something else.
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