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Esprit Model . Thunder Power RC . Mikado Modellhubschrauber

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HIROBO Turbulence - SDX - Freya - Sceadu > Crazy piros!
 
 
sir777
Senior Heliman
Location: Moscow, Russia + Lloret de Mar (Girona), Spain

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Hi everybody! I have a sceadu evo 50 and the folowing thing seems to be very strange to me: my gyro (gy502) is not setup well I think and I get much more piro rate to the right than to the left (I thought it should it be vice versa, because of rotation of main rotor). It piruetes to the right extremely fast (I don't know exactly, but 3 piros per second is the minimum I can think about). And after doing this piros for awhile and stopping it, my heli shake for a second or two. What it can be? Is it normal? I feel like it is going to explode.
06-18-2005 Over year old.
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Ashley
Senior Heliman
Location: London UK

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I have exactly the same setup, in non heading hold mode does your heli's tail stay centred or do you have to put in right or left rudder to keep it centred ? = If you have to put in rudder to keep it from turning then our not mechanically set up properly, physically adjust our pushrod until it stops turning, then check the endpoints on the 502 and ou should be ok, you can turn down the piro rate on the gyro screen for each directio if you still feel it's fast.
06-18-2005 Over year old.
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sir777
Senior Heliman
Location: Moscow, Russia + Lloret de Mar (Girona), Spain

My Posts This: Topic  Forum
I have the idea of how adjusting the gyro, but it is another problem. Mechanical center on it seems in a very strange place, while others here on runryder told another things (I have read that the distance between the wall of a tail case and a pitch slider should be about 8-9 mm, on mine it is much more, that's why I have to much servo travel to one side and much less to another, which cause me to use less than 100% servo limit, which is not good for servo, as I read), but it is another problem to solve. The question is that should the heli itself shake after doing this very fast piros?
06-19-2005 Over year old.
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Ashley
Senior Heliman
Location: London UK

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no, but what kind of shake are talking about ? - Alsoyou didn't say if your tail drifted when not in heading hold mode ?
06-19-2005 Over year old.
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Futaba-RC . Boca Bearings . XHELI.COM

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HIROBO Turbulence - SDX - Freya - Sceadu > Crazy piros!
 
 
sir777
Senior Heliman
Location: Moscow, Russia + Lloret de Mar (Girona), Spain

My Posts This: Topic  Forum
I can adjust it so, that in normal mode it doesn't drift, but that point seems to be very far (the distance between the tail case and the pitch slider is about 12-13mm or more!!! I am not sure exactly, but is much more than 8-9 mm as said here in runryder) and I have 145% limit to the left on servo and it still doesn't touch the wall (so it doesn't have full travel) and much less than 100% limit to the right, so that there is no binding. I can use smaller servo arm (I used as recommended in manual) to make my right limit more, but then I will have much less throw to the left, or bigger servo arm, but then the problem will be, that I have more throw to the left, but will have to put less limit to the right, while it is already very small. And these shakes only happen when doing piros to the right, because to the left much more slower. The heli itself shakes for a second or two after stoppping the piro. I don't the right word for that king of shake, but maybe wooble??? It seems to me that it comes from the head and then transfers to the frame and other parts of the heli. I am a bit confused about all these things. I can just put it in hh mode and it will hold fine most of time, but sometimes it seems to go away...
06-19-2005 Over year old.
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Esprit Model . Thunder Power RC . Mikado Modellhubschrauber

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HIROBO Turbulence - SDX - Freya - Sceadu > Crazy piros!
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