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HomeAircraftHelicopterThunder TigerRAPTOR X50 › Ys60 and ds610 throttle setup
03-16-2014 03:53 PM  4 years agoPost 1
johnbs8

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roseville michigan

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Ive set my throttle up many times on previous models and engines without having to adjust servo travel at all. Keeping it at 100% on both high and low ends. With a ds610 on throttle, ive tried all holes on the horn with 2 dif horns and all 3 holes on the throttle barrel with no luck. The closest ive come is to adjust travel on full open throttle back to 88%. This is really bugging me. Anyone wanna chime in please.

TT X50 Nitro
Warp 360
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03-16-2014 07:52 PM  4 years agoPost 2
Dr.Ben

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Richmond, VA, USA

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You need to balance the needed travel adjustment between the top and bottom. If the bottom is set at 100% and the top is at 88, then you can increase the top a few points, set the bottom atv to the same number, and then readjust the rod. You also need to make sure that the mechanical relationship between the servo and carb arm is correct. At half throttle, the throttle arm and servo arm should be at 90 degrees and parallel to each other. When I flew glow, I found the easiest way to do this was to use the same arm on the carb flipped over backwards that I had on the servo and the same hole in each. The length of the pushrod should be the same as the distance between the screws that hold arms (not their balls) on the carb and servo.

In case you haven't noticed, doing this exactly right is an art form.

Ben Minor

Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA

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03-16-2014 08:51 PM  4 years agoPost 3
johnbs8

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roseville michigan

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Thanks for the reply Ben. And yes its def an art form! I had it down and could set up a perfect throttle in 5 min. After not doing it in a long time i have forgoten what i did that mad it so easy.
On the ys56 there are 3 notches at about middle carb. The manual says the middle notch is 40% throttle so is the next notch closest to full open?
Is this where the carb barrel should be in conjunction with the servo arm being 90deg?

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03-17-2014 02:48 AM  4 years agoPost 4
Rob43

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Midland, MI USA

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The length of the pushrod should be the same as the distance between the screws that hold arms (not their balls) on the carb and servo.
Not sure I am clear on what the difference is. If the balls are equidistant from the screws that retain the arms, then there shouldn't be a difference should there?

I am at this point too, YS60SR, but a Futaba BLS253.

Rob

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03-17-2014 04:59 PM  4 years agoPost 5
johnbs8

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roseville michigan

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why is it important to get 100% and 100% on low n high vs getting say 40% and 85% on the low and high on the travel ?

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03-18-2014 04:13 AM  4 years agoPost 6
Dr.Ben

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Richmond, VA, USA

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If the pushrod is the same length as the distance between the two arm mounting screws, it pretty much assures that the two arms maintain two legs of what effectively is a parallelogram. It becomes even clearer if you do as I used to and run two pushrods on either side of a two armed servo arm.

If the middle mark is 40%, I think the next very close adjacent one is 50%, and that is where you would reference the arm for 90 degrees.

I normally strove to get 50% barrel at 50% throttle curve and 100 at 100. There is a little wiggle room on the bottom depending on where you set the throttle trim for idle due to the way ATL works on most transmitters.

Ben Minor

Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA

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03-18-2014 04:38 AM  4 years agoPost 7
Ace Dude

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USA

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I'd be embarrassed to admit how much time I've spent on some helis to get the throttle setup perfect. Conceptually and mathematically it's simple, but it seems no matter what you do that throttle arm is always going to move a tiny bit when you tighten it.

  

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03-18-2014 10:28 AM  4 years agoPost 8
datidun

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N Ireland

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It does not have to be 100.100,I have one set at 95.95,also one of the Governors I use allows one to go to 115atv,you want the same on both ends so the the output is linear.

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03-18-2014 01:41 PM  4 years agoPost 9
Dr.Ben

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Agreed. I was ok with anything between 90/90 and 110/110.

Ben Minor

Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA

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03-19-2014 12:59 AM  4 years agoPost 10
johnbs8

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roseville michigan

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how important is it for 50% midstick 50/50 and 50% throttle to be lined up? what effect will become of it at say 60% throttle and 50% curve?

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03-19-2014 10:24 AM  4 years agoPost 11
datidun

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N Ireland

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You should be able to get 50% throttle curve when the carb is marked half open,if not you can adjust the middle throttle curve slightly to 55 or 60% to get the carb half way on the line,adjusting 5%to 10% wont hurt anything.

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03-19-2014 05:01 PM  4 years agoPost 12
Dr.Ben

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Not a whole lot, BUT it is nice though to be able to tune a motor on a linear curve because it helps to know which needle to tweak as a function of where you know that barrel is sitting at a given headspeed. This is quite important on a YS because the most accurate midrange needle tweaking occurs when the carb is in that 40-50% range.

The more you look for the absolute best power out of a motor, the more these nuances matter.

Ben Minor

Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA

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03-21-2014 06:07 PM  4 years agoPost 13
Rob43

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Midland, MI USA

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Forgive my ignorance, but I don't quite get the nuances pertaining to linearity of throttle at the 1/2 way open point. The servo & governor will be constantly adjusting throttle as pitch is being controlled. I get that the mid range needle adjusts the mix when throttle is 1/2 open, but what does it matter where that occurs on the throttle curve, when running a governor?

Rob

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03-21-2014 06:35 PM  4 years agoPost 14
navyraptor

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CA, USA

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getting the throws as close to 100/100 gets you optimum resolution for the servo = gov, the gov will work more efficiently and smoother with a nice mechanical set up. think of a fbl unit, bad mechanics cant be hidden by electronics.

Raptor G4N, Raptor E720, Raptor E700, Raptor 90SE, X50F, X50E, 14sg

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03-21-2014 07:21 PM  4 years agoPost 15
datidun

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N Ireland

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You need to get the mechanics sorted first before you can even think of mid range needle,just like Navyraptor said.

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03-21-2014 08:01 PM  4 years agoPost 16
navyraptor

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CA, USA

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also the gov wants to see 50% throttle at 50% throw

Raptor G4N, Raptor E720, Raptor E700, Raptor 90SE, X50F, X50E, 14sg

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03-21-2014 09:04 PM  4 years agoPost 17
Rob43

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Midland, MI USA

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I understood getting the most resolution, but I didn't recall the governor wanting to see 50% travel and 50% throttle. Thanks.

Rob

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03-21-2014 09:24 PM  4 years agoPost 18
navyraptor

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CA, USA

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its all part of having even throws each way, and close to 100/100

Raptor G4N, Raptor E720, Raptor E700, Raptor 90SE, X50F, X50E, 14sg

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03-21-2014 11:35 PM  4 years agoPost 19
Rob43

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Midland, MI USA

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So, since the carb rotation from shut to open may not be equal to the rotation of the servo shaft from 100% to 100%, the servo horn will need to differ just enough to make this happen. Correct?

Rob

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