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HelicopterRadio - Servo - Gyro - Gov - Batt › Anyone ever used those cheap gyro?
01-02-2010 01:01 AM  7 years agoPost 1
Vibe Ration

rrVeteran

Mont-Laurier, Qc, Canada

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Hi everyone,

A friend of mine is looking for a not that bad gyro for his new Copter X450. He don't want to do piroflip this year but maybe some loops, rolls and smooth 3D.

Someone has experience with this gyro?

thank you in advance!

Vibe 50, CopterX 450, Gaui 200EX, DX7se

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01-02-2010 01:04 AM  7 years agoPost 2
aussie_g

rrVeteran

Travelers Rest, South Carolina, USA

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dont know about that one...

but this one has been proven to do a pretty good job

http://www.helidirect.com/gy48v-gyro-dy1017-p-10574.hdx

Gareth

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01-02-2010 03:23 AM  7 years agoPost 3
CEGLOBAL

rrApprentice

Lahaina, Hawaii - United States

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A couple of questions

Does your friend fly any other helis or intend on getting a different/larger heli?

What is his budget for the gyro?

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01-02-2010 06:05 AM  7 years agoPost 4
Vibe Ration

rrVeteran

Mont-Laurier, Qc, Canada

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aussie_g: Thank for the suggestion, I didn't know that one. but I think it is not heading hold.

CEGLOBAL : No he does not have another heli yet. Maybe later but not for now.

His budget is about 50$ max I'dd say.

For myself... I had a bad story with a Logictech on my Gaui 200 few weeks ago (use to fly JR 770 3D on my Vibe 50) with an issue. Ready Heli (thanks to them and their good service) refund me the gyro and I bought a Spartan Quark. No more less-than-hundred-dollars gyro for me! So I am the worst guy who could give this advice now! But I promised him to make a research.

But it would be great to find a cheap gyro for beginers.

Vibe 50, CopterX 450, Gaui 200EX, DX7se

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01-02-2010 06:16 AM  7 years agoPost 5
Vibe Ration

rrVeteran

Mont-Laurier, Qc, Canada

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I just noticed my mistake in the title sorry about that.

Vibe 50, CopterX 450, Gaui 200EX, DX7se

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01-02-2010 08:22 AM  7 years agoPost 6
CEGLOBAL

rrApprentice

Lahaina, Hawaii - United States

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Gyro

Vibe Ration

I have the Dynam GY48V as well. I got this gyro about 3 months ago for my son's heli and about 2 months ago I found this link:

http://www.xheli.com/60p-dy-1017.html

For the price I think the gyro works pretty good. For a beginner, I think that your friend would do well with this gyro.

The gyro is a heading hold gyro using AVCS technology.

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01-02-2010 09:30 AM  7 years agoPost 7
nivlek

rrProfessor

Norfolk England

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If you want a cheap gyro that works :

http://www.hobbycity.com/hobbycity/...Head_Lock_Gyro_

It's the same as the Mystery MY401B/XMSelller G401B gyro .

In the UK it's available from Giantcod for just over a tenner .

http://www.giantcod.co.uk/giantcod-...o-p-404476.html

I have two fitted in HK450 helis , both work very well . The've never let go during fast backward rolls etc , their piro consistancy isn't perfect but it's as good as a Futaba 401 .
One has very slight temperature drift , but you need to do a prolonged hover at the end of a flight to be able to detect it , it's really not an issue . I haven't noticed any temperature drift on the other one .

I have another in a HK250GT , it's only been hovered once so I can't really comment on how well it works yet , but I did have the confidence to fit it . I also have another one as a spare .
I set one up for a clubmate in his Blade 400 to upgrade its standard gyro , it holds much better that the original . Another clubmate has one in a 500 size heli ,I think it's in his Protos , but he has so many 500's I'm not sure ! Other clubmates have them for their 450's .

I do also own high end gyros , which no doubt are better in piro consistancy , but you have to spend several times the price of the HK401B before you find a gyro with superior performance . Obviously , I'm only talking about electric helis , I don't know how they would hold up to a lot of vibration .

At the end of the day , it gets dark .

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01-02-2010 02:28 PM  7 years agoPost 8
Vibe Ration

rrVeteran

Mont-Laurier, Qc, Canada

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Thank you guys!

nivlek : what do you mean by temperature drift?

"but you have to spend several times the price of the HK401B before you find a gyro with superior performance" : I like it!

Vibe 50, CopterX 450, Gaui 200EX, DX7se

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01-02-2010 03:37 PM  7 years agoPost 9
nivlek

rrProfessor

Norfolk England

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Vibe ,
Temperature drift is a common electronic problem . In this case , to keep the cost of the unit down , it uses a piezo sensor rather than a silicon sensor that is used in more expensive units . Unfortunately , piezo sensors are not as temperature stable as silcon sensors .
As a result as the gyro warms up ,or cools down, the characteristics of the sensor change and the tail trim changes very slightly .

Temperature drift is a problem particularly common to all piezo gyros . With the original HH gyro , the CSM360 , the method used to overcome the drift was to remove the model from your vehicle and allow its temperature time to adjust to ambient temperature .
Then turn the radio on for a few minutes to allow the gyro to warm up , then turn it off and back on again so that it recalibrated itself at operating temperature .

As the amount of drift that I have experienced with the G401B gyros is very mimimal , going through that procedure isn't required , the gyro must have some pretty good temperature compensation designed in .

At the end of the day , it gets dark .

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01-02-2010 03:59 PM  7 years agoPost 10
Vibe Ration

rrVeteran

Mont-Laurier, Qc, Canada

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WOW! Such great to know that!!!

Thank you!

Vibe 50, CopterX 450, Gaui 200EX, DX7se

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01-04-2010 03:24 AM  7 years agoPost 11
Hughes500Pilot

rrKey Veteran

Anaheim, CA

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Below is a cut and paste from another post I wrote. In it I have the XMHobbies g401b gyro. It's been working very good. I think the only thing holding back from working "great" is the fact that I'm usin a cheap $4 servo on the tail rotor.

You may notice that I modified the gyro by cutting the rudder servo wire and wired it directly inside the gyro. I did this to dress the heli up or I would have the long servo wire and the even longer gyro wire sticking out... Since the gyro only cost me $20, I didnt care too much about doing it. -Steve

-----------------------------------------------
Here is my CopterX 450 AE V2. I'm no "expert" as a lot of other people claim to be. But from what I can tell, the parts fit and quality is exactly the same as my Align 450 SE.

I bought one of those cheap ($59) CopterX 450 AE V2 helicopters just to try one out. I was not expecting much. But, I was qiute surprised. Overall quality was pretty good.

Just for fun, I also bought all the "el cheapo" stuff to go along with it. My goal was to keep it all stock and as cheap as possible. The only thing I didnt skimp on was the receiver (and thats so I could actually fly it). Here is what I bought/spent:

CopterX 450 AE V2 $59
4 Turnigy TG9 servos $16 ($4 each)
Turnigy 30A ESC $18
Turnigy ESC Program Card $6
KA450H Motor - 3200Kv $17
G401B Gyro $20
Dragon Carbon Blades $13
Flightmax (Zippy) 2200ma 3S battery $18
Futaba 6008HS Receiver $105

Total cost $272 ready to fly (and thats including the very expensive receiver).

It is all stock except for the tail fins. The kit comes with aluminum tail fins (they are made out of the same material as the main frames). I had an old set of plastic fins laying around, so I put those on. The only other thing I changed was the tail blades and main blades. The tail blades were fine, but they were black. I much prefer white blades so I through some Align white blades on. And the stock main blades were wood. The looked OK, but really, who flies wood anymore?

Lastly, here is the part I hate to say - it flies just as good as my Align Trex 450 SE. Look in my gallery and compare the two.

-Steve

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01-05-2010 12:20 AM  7 years agoPost 12
dkshema

rrMaster

Cedar Rapids, IA

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If you have a junk gyro and want a great one, check out Inertia's trade-in promo for the 860....trade in your old functional gyro, get an 860 at 50% off.

I've got a couple of GY240's gathering dust...soon to be turned into 860s.

As for el cheapos, last time I flew one of those, it was a Helimax Piezo gyro. The $60 gyro quit working in the air and corkscrewed my old Nexus into the ground. That was quite a few years ago. You get what you pay for.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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01-05-2010 12:53 AM  7 years agoPost 13
Vibe Ration

rrVeteran

Mont-Laurier, Qc, Canada

My Posts: All  Forum  Topic

Hughes500Pilot : Thanks for the info... this is a realy interesting low cost setup... will print your message for futur newcomer in our club for sure!

dkshema : Thank you

Vibe 50, CopterX 450, Gaui 200EX, DX7se

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