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Home✈️Aircraft🚁Helicoptere-Elec-Helicopters New or Limited ActivityE-Sky › G401B + Futaba S9257 = Sweet!
06-21-2009 12:06 AM  11 years ago
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zaw

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G401B + Futaba S9257 = Sweet!
Hyperion DS11GCB is very good servo for it but didn't last long for me because it have small motor but it held the tail very well. S9257 is a bigger servo with more torques+holding power make a world of different. I just set new limits and play with some gain a little bit and it is very holding the tail solid. It is very heavy but not too heavy, with HBK3 Canopy you can move the battery forward far and you can also make new mounting holes to get the CG perfect.

Thanks Gregor99 for suggestion.
ಠ_ಠ HBK2 built with inexpensive parts! ٩๏̯͡๏)۶ Gaui425
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06-21-2009 12:40 PM  11 years ago
fenderstrat

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ZAW,have you turned a new leaf??????are you finally giving up on cheap servos,if you buy good,and buy once you get to spend your time flying

the irony is,you actually save money in the long run,if you buy good from the beginning

now that you bought a good servo for the tail,you may have to get rid of your tag line
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06-21-2009 06:56 PM  11 years ago
zaw

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I'm still using cheap servo's on swash. I think I'll stick with cheap ones on swash until I progress, I've try expensive servo on there too but HXT900 are reliable in flight and cheap when gears strip.

I'll get a set of good faster servo when I'm ready.

Actually that tail servo wasn't my choice, its that gyro's choice, I have no control over it.
ಠ_ಠ HBK2 built with inexpensive parts! ٩๏̯͡๏)۶ Gaui425
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06-21-2009 07:32 PM  11 years ago
Heli_KV

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In my experience good servos simplifie life extremely at the beginning. I think that it is advisable to learn not on cheap crup, but on decent heli, not super one, but decent.

Strange, there are trainers for planes, but no trainers for helis. And if they are, they are not positioned as 'trainers'.
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06-21-2009 07:45 PM  11 years ago
fenderstrat

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In my experience good servos simplifie life extremely at the beginning. I think that it is advisable to learn not on cheap crup, but on decent heli, not super one, but decent.
been telling guys that for a while,but they insist on buying multiple cheap stuff instead of good stuff once

and i am not saying this to be a jerk,but ZAW you are proud of your cheap ways but you also have had more mechanical failures than any 10 guys on here,coincidence?I think not
I'm still using cheap servo's on swash. I think I'll stick with cheap ones on swash until I progress
maybe you would progress more if you did not have so many issues,and your heli was more dialed in
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06-21-2009 08:21 PM  11 years ago
Heli_KV

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Btw, just vivid example. Overkill maybe, but still. Recently I revived FrankenBladeCp and decided to set HS65MG there. It flew fine. Then I needed these servos for another heli, so BladeCp was a donor. And I installed HS55 there instead. Heli flew noticeably worse. It flew, but less smooth and precise. It was noticable.
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06-21-2009 09:52 PM  11 years ago
MMike

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KV

This is an interesting observation, likely not biased.

When someone upgrades servos, they are likely to be biased to "think" they're better, whether they are or not.

In this case, you don't have that element.

BTW, I don't have a "servo in this fight".

I've been buying at least "good", for a long time.
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06-21-2009 10:10 PM  11 years ago
zaw

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I have 3x HS65MG'' 2 of them works, one got burnt motor after a crash, $36 down the drain.

LOL.. if I got the $$$$$$ to spend on this hobby I'll buy the best! Definitely won't be messing around with any Esky stuff for sure.
ಠ_ಠ HBK2 built with inexpensive parts! ٩๏̯͡๏)۶ Gaui425
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06-21-2009 11:01 PM  11 years ago
DougsRC

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I wouldn't use em on a 450 size heli but I've been using Esky 8 gram servos on the King from the start-- see no reason to change. They are not crash proof so just crash less often
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06-22-2009 07:20 AM  11 years ago
mayday1

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I must have gone through a dozen of HS55s on my king, they
die from gear-stripping and jitter after almost every crash.
Now that I've switched to the $4 towerpro sg-90, I haven't had to replace any cyclic servo in about a dozen crashes. So sometimes
cheap works.

I just ordered a G401B clone from dealextreme, curious to see
how it compares to the futaba gy401.
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06-22-2009 09:58 PM  11 years ago
zaw

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Go with S9257. Smaller DS11GCB servo work just as good but they dies from gettign too worked up from that gyro.

People as its as good as GY401, Works out good for me, survied a lot of crashed, it even ejected a time from crash that I had to open it up and re set the circuit board but still work fine.

I'm not afraid to do fast descend and stop near ground and punch right out with this gyro. I holds up well.
I was flying in very high cross wind, the heli was almost damn near roll over but tail stays there solid.
If you use analog or slower servos, its pain to setup, playing with rates and delays etc. Fast Digital, flip to DS mode, adjust the endpoint limits, figure out the rate and fly.

HS55 are garbage! 65MG' are good but expensive. Esepcailly if you got to buy 3 of them. For the price you can buy HXT900 like 20 of them will last you life time and still have money left for spare parts.

Its not cheap, its all about good deals. Those Tower 9G's are same as HXT900, best bang for the bucks IMO.
ಠ_ಠ HBK2 built with inexpensive parts! ٩๏̯͡๏)۶ Gaui425
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06-23-2009 01:15 AM  11 years ago
fenderstrat

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I'll take 3 good servos that hold and center the same all the time over 20 crap junk servos any day

ZAW,do me a favor,add up all the money you have spent on garbage servos since you've been flying
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06-23-2009 01:26 AM  11 years ago
MMike

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center the same all the time
I thought of this during a recent discussion on "tail hunting".

Servos are not rated for "centering" are they?
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06-23-2009 01:30 AM  11 years ago
fenderstrat

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I dont know if there is an actual "rating" but you can actually see the difference with your eyes between a junk servo and a good one.and if you make the jump to digital,the centering is really precise.

I dont even know how you can set up the swash on a heli if the servos dont even go to the same spot every time,its like chasing your own tail
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06-23-2009 02:58 AM  11 years ago
Heli_KV

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Fenderstrat, could you please contribute to my question: http://www.runryder.com/t522965p1/. Looks like you have experience with digitals. It boils down to the same question - should I buy good servos or not so good. In one of my heli I cannot perfectly adjust servo throw by ATV, so I think should I plan for digitals or it will be the same. I am afraid, I will start pouring money changing servos many times instead of one.

I adjusted as much as it was possible, but swash is not leveled all the path - one servo is way different - no way to adjust.

Thanks!
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06-23-2009 03:47 AM  11 years ago
fenderstrat

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this subject is SO involved.there is a LOT of stuff going on here and some of it is attributed to specific helis.

some helis have geometry the contributes more to interaction than others

in a 3 servo ccpm set up the aeileron and elevator functions have to move different lengths to get to the same place,add to this the fact that servos take a circular motion and make it linear and interaction can come from many places

having said all that sometimes it is hard to get 3 servos exactly matched

so my advice would be to get the best servos you can afford,as a matched set,and if you want to go digital do it if you have the $$$,you will never second guess buying good gear.I have digitals on 2 of my 4 helis and i have no complaints,they center precisely,hold awesome and are fast.

hope this helps,although sometimes it just adds to the confusion
I adjusted as much as it was possible, but swash is not leveled all the path - one servo is way different - no way to adjust.
as i said earlier,with some helis,its not always possible to eliminate ALL interaction throughout the whole travel.so you eliminate at bottom/mid/top and go fly

some high end radios actually have servo speed adjustment to help eliminate this,the rest of us just deal with it
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06-23-2009 04:04 AM  11 years ago
Heli_KV

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Thanks! It is servos, not geometry. G5 heli. Servos are 120 degrees on the same level. Just one servo gave up, so I put another and it is different. Reluctant to buy one more servo, because it may also be different. So far I fly like this. So far so good in flight. What are advises on digitals, analog to HS65MG? Inolab 202MG?
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06-23-2009 04:23 AM  11 years ago
fenderstrat

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So far so good in flight
then fly till you have issues

from what I read they recommend the inolab or the 65mg's

I know nothing about innolab servos but the 65mg have to be the most popular micro servo by far,there is a reason for that

they are expensive but there is a digital version of the 65mg out now also
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06-23-2009 05:00 AM  11 years ago
Heli_KV

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then fly till you have issues
That's what I do. I shifted irregularity to the very end of a travel. I think if I am there, I am already falling, so it does not matter.

Yeah, I read this, G5 designer recommends Innolab. I have them on another heli - it flyes smoother, but it is different heli with another head and way higher HS. So not proper comparison. Just want to plan ahead - unfortunately eventually servos go and I would need to change them. So far I tend to go with Inolab, unless I hear something bad about them from several places. At least cheap replacement gears.

Thanks for advise!
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06-23-2009 05:26 AM  11 years ago
zaw

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About $40 and I still got 4 brand new ones and 5 sets of gears left.

I'll be surprise if any servo will live thought a few of crashes. Most of my crashes are I doing dumb thing.

Only 2 of them have electrical issues after crashes.
I usually squeeze them in on my Zippy Orders.

They all center perfect, I have a tons of horns one of them will center.

The work good for my skill level.. Trust me I tried expensive servo and I still suck.

Hyperion tail servo is by no mean cheap, its very good quality it was just too small for the job. S9257 really is too big for HBK.

HXT's are as good as Esky servo but a lot cheaper. People just love them! Get 3x good servo for price of a Gear Set.
ಠ_ಠ HBK2 built with inexpensive parts! ٩๏̯͡๏)۶ Gaui425
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