401 Clone?

[Smoothound]

Anyone used a Gaz 126 which is apparently a 401 clone?

Mate is using one and reckons it is equally as good as 401 and only cost about 13 quid

[glen_j]

that is cheap phil, not used one myself but would be insterested to see if its any good

[Smoothound]

A bit dearer than I said but here you go LINKY

[Mikej]

I have 4 of the G401B "Gyrds" - you can get them from HK from $16 and they are very good for the money. Some claim as good as a GY401 but I'm not good enough to say but certainly VERY good for the money

[trillian]

I have 4 of the G401B "Gyrds" - you can get them from HK from $16 and they are very good for the money. Some claim as good as a GY401 but I'm not good enough to say but certainly VERY good for the money

I just got one of these from HobbyKing and will soon try it in place of a GY401 on a 450.

[Smoothound]

I just got one of these from HobbyKing and will soon try it in place of a GY401 on a 450.

Be interested to hear what you think. I need something just to get my Atom in the air and although I'd rather something else this is possibly a temporary option while things are tight

[trillian]

Be interested to hear what you think. I need something just to get my Atom in the air and although I'd rather something else this is possibly a temporary option while things are tight

Yeah I read some good reviews of it and I think it was something like $17.00 US so I figured it's worth a shot.

So far on my GL450 I have had;

the Gulang 700 gyro that came with it - held not so great, drifted a little and didn't feel locked in.

Align HH gyro - held about the same, some drift and some wag now and then so probably about the same as the Gulang or maybe not even as good.

Futaba Gy401 - locks in very nicely, no drit and no wag and feels very in control.

So the test now will be pitting the HK401B against the GY401. I would have taken it out for a hover today but it's just too cold and there's still snow on the ground

[choppaholic]

they are many out there that claim to be Futaba GY401 clone, i have both the real and the clones, when i was learning (i still am) to fly i found them way better than E-flite gyro, Telebee etc.... they are good if you use a fast tail servo.

i have THE KDS 800, apparently one of the first clone of the GY401 (they have also clone the helicommand 3D) also sold as the dragon sky GY401B, Acer-Labs GL1000 etc...

they dont hold up when the wind is 15 miles and over, a lot of wagging due to the wind.

then as you skills improve, and you start doing fast loops, flips and barrel rools in FFF they start to show thier clone stuff. when you do a few backward manouvers they are really not upto it.

for general flying and learing they are brilliant, but no were as good as the real GY401. My copter-X 450 is a testbed for everything i buy used before i put them on my expensive copters. it curently has two Gyros mounted for testing which i switch by a Y lead. and when you pair them again a clone and a Futaba back to back you can tell the difference insatntly. my best combination so far which works well is a clone and Acer lab D12MG at 6V, for £24 Gyro and servo they performs very well.

Of all gyro i have used so far, i find the Align GP750 the easiest to setup and does it job very very well, i prefer it over the Futaba GY401, the align is way better in the wind than a futaba.

if you real want a mid range gyro which works as good as the best out there

try Skyartec gyros, they are not well know but i can tell you their Gyros hold as good as anything i have and for half the money, try their website they have free delivery over $50 and they are brilliant gyros, but not as cheap as the clones but they work and are half the price of the big names.

Cheers

Sav

[Smoothound]

Thanks for your input

Sounds like they are on a level with the 401 then as the 401 is not much good when pushed backwards etc.

[trillian]

Thanks for your input

Sounds like they are on a level with the 401 then as the 401 is not much good when pushed backwards etc.

At the moment the GY401 holds very well for the type of flying I do, which is very tame circuits and stuff.

With the Align HH gyro although it would hold OK in forward flight it would wag at the top of a stall turn for example or side-on to the wind. The Futaba handles those things much much better, to the point where it feels very locked-in all the time for my flying. If the 401B can do as well I'll be very pleased.

[trillian]

Update 1

So far I have had a chance to fly with the HK401B a little bit. Basically it works quite well so far.

I have not been able to really test it thoroughly because I also changed the rotorhead on the heli which caused some other issues. I will be putting the Align SE V1 head back on it and then should be able to do a better comparison.


After adjusting the gain to stop it wagging it is generally holding very well.

After reading a bit of comments from some other forums I tried changing the position of the ball link on the servo horn to one hole 'shorter', toward the servo because it seemed the limit setting on the gyro was not reducing the travel enough. So the ball link is about maybe 8mm from the centre of the horn. (Acerlab D-12 MG servo).

Anyway, so far it seems much better than the Gulang or the old Align gyros. When I put the Align rotor back on the heli will be the same as it was with the Futaba and I can then really get a feel for how well the HK holds up.

[choppaholic]

setting on the gyro was not reducing the travel enough. So the ball link is about maybe 8mm from the centre of the horn. (Acerlab D-12 MG servo).
p.

correct me if wrong but shouldn't the ball link be places on the closest hole to the servo, this gives you less travel, but good resolution for the servo, the servo can make very small adjustments in this case.

its like if you had to small stick you can make a small adjustment accurately at the other end, if you have a long stick you cannot make small adjustments because the movement is more at the other end.

its like, take a pencil and you can draw a nice curve by holding it far away, then try doing the same with a pool stick and you cant.

[trillian]

Yeah, basically you trade torque and resolution for speed and travel. But you also have more linear geometry with the link further out.

In any case it seems to be working well where it is now and I think this is the happy balance being struck. From the middle of the servo shaft to the centre of the ball link is about 9mm and I really don't think you'd want it any closer than that.

correct me if wrong but shouldn't the ball link be places on the closest hole to the servo, this gives you less travel, but good resolution for the servo, the servo can make very small adjustments in this case.

its like if you had to small stick you can make a small adjustment accurately at the other end, if you have a long stick you cannot make small adjustments because the movement is more at the other end.

its like, take a pencil and you can draw a nice curve by holding it far away, then try doing the same with a pool stick and you cant.

[Smoothound]

Mine arrived via my mate a few minutes ago will be fitting tomorrow and hopefully at least popping it up in the garden if I can't get to the field




I'll not be trying it tomorrow now Have a close look...

[waveydavey]

Phil, how did you get on with it. Looking for something for my sons 450 thats better than the one he has on it.