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Home✈️Aircraft🚁HelicopterBeginners Corner › Futaba GY520 gyro
02-25-2010 08:54 AM  10 years ago
Smok

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Antwerp, Belgium

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Indeed, I have seen some micro servos branded as "digital" being fried when used with a TX/Gyro in digital frame rate mode ( some Robbe-branded digital micro servo did that to me - multiple units ). So it could be it's maybe a digital amp ( or maybe even not ? ) but still can not survive the high frame rate.
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02-25-2010 02:35 PM  10 years ago
Solmanbandit

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Tucson , AZ

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That is pretty much the case when I read the instructions on the 400. So basically some of the previous info given was incorrect as to which servo to chose with the GY520 gyro.
• When the Servo Mode selection switch is set in the Standard (STD) position, the gyro is optimized for use with most analog servos. It is also optimized for use with digital servos that are not designed to accept a pulse rate of 275Hz or higher. And although the DS75H rudder/tail servo installed on your Blade 400 3D model is a digital servo, it is not designed to accept a pulse rate of 275Hz. As a result, you must be certain that the Servo Mode selection switch is set to the Standard position when the DS75H servo is being used. Note: Do not use analog or digital servos that are not designed to accept a pulse rate of 275Hz with the Servo Mode selection switch set to the Digital Servo (DS) position. If either type of servo is used with the gyro set to the Digital Servo mode, it will reduce the operating life of the servo, typically causing the servo to fail within a few minutes of use or after a few flights.

• When the Servo Mode selection switch is set in the Digital Servo (DS) position, the gyro is optimized for use with digital servos that are designed to accept a pulse rate of 275Hz. Some such servos include the Spektrum DSP60 and DSP75, as well as the JR 3400G. Again, although the DS75H tail servo installed on your model is a digital servo, it is not designed to accept a pulse rate of 275Hz. Be certain that the Servo Mode selection switch is set to the Standard position when the DS75H servo is being used.
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02-25-2010 02:49 PM  10 years ago
Smok

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Antwerp, Belgium

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If you are after a new gyro servo for Gy520, you might eventually consider to get a tail servo that is known to work well in this combo. A cheap, less known servo might save a few bucks, initially, but might raise a risk of crashing the machine - which will cost as much as all the savings and the some... My own shortlist of mini tail servos includes: BLS 257, 9257, HS-5084... All these servo take the 1520ms digital/fast frame rate signal. I am quite happy with the Hitec HS-5084 servo, even as I prefer generally Futaba and I use Gy520 with BLS 251 on my nitro heli..
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02-25-2010 02:52 PM  10 years ago
Smok

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Antwerp, Belgium

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... also, just IMHO, running a top gyro like 520 with even a super-fast but analog tail servo amounts to not using the gyro's full potential. It's close to impossible to have both a solid tail and no wagging with a tail servo in analog mode - usually it's possible to set it up to have one of these, but not both...
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02-25-2010 03:28 PM  10 years ago
Solmanbandit

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Tucson , AZ

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I plan on switching to a better servo when I get the opportunity or when I have a need to do so.
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02-25-2010 11:22 PM  10 years ago
Solmanbandit

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Tucson , AZ

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Well, I got it all put back together and ready for flight. I can't wait to take it out for a spin. It is a bit windy out, so I am not sure if I will be able to make it out today.
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02-26-2010 12:58 AM  10 years ago
Solmanbandit

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Tucson , AZ

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I took it out for a quick spin even though the winds are a bit strong. This gyro is awesome. It was fighting the wind pretty good and did quite well. I did about 2 laps around the park and it worked great. I can't wait to take it out and do more when the weather is better. There is no way I could flown in that wind condition with the old gyro. I would've been all over the place.
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02-26-2010 01:44 AM  10 years ago
KingJoeMack

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New Baltimore, Mi USA

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Glad you got the bugs out.Fly with scheduled ground contact !
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02-26-2010 02:56 AM  10 years ago
Solmanbandit

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Tucson , AZ

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I may fine tune it later, but it is at a good starting point.
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Home✈️Aircraft🚁HelicopterBeginners Corner › Futaba GY520 gyro
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