8411 ?
 

Hi Guys. I am building a new Jet and going to use 8411's. What is the better of the two? The ones with metal gears or the ones with composite gears? Just looking for some feedback.Thank's in advance Jack. :)

Re: 8411 ?
 

Luv2Flyrc2,
Use the metal gear 8411,s-pack them with vasoline-(the gears)-makes them tight as a full scale actuator.


Jackjet

8411SA
 

What is the difference between 8411sa and the 8411 servos?

Paul

8411 ?
 

The Gears....8411 is metal gear and 8411SA is nylon gear train except for output gear

Todd

8411SA
 

Hi todd. is the 8411SA the ones Curtis Youngblood uses on his chopers? And is there any advantage that they might have with use on jets? :confused:

8411 ?
 

Yes....these are the same servos Curtis is using. The 8411 is known to be a bit sloppy in the gear train due to the clearance required with metal gears. Since the SA version has nylon gears there is virtually no gear lash but as the cost of output torque the gear train is capable of handling. Although there is a bit of lash on the 8411, I have never had a problem with them nor have I heard of anyone fluttering one because of the lash. Guess it's just a matter of application and personal preference as to which version you would use on a jet. IMHO....No, there is no real advantage to the SA for jet application except they are slightly cheaper than the standard 8411.
Todd

Hitec Digital Servos
 

Just throwing this out there! Has anybody used the new Hitec digitals in their jet yet? They have been real successful with the giant scale group; some pilots are even switching from the 8411 due to their programmability.

Please advise...

Re: Hitec Digital Servos
 

Any discounts for list members?

Discounts
 

I would have to say that Hitec Products are already sold at a discount; they are, by far, the best value in the hobby market!

So, yes, to answer you question.

8411 ?
 

Mike,

I have been playing a bit with the new Hitec Digi's for a few weeks now. I have to agree, the programability of them is a plus and they do seem to be as good if not better than the JR's. Gear train is much tighter than the 8411's. Dependability is the big question, if they continue to work I am sold on them. I have been testing two of them in my 1/3 scale weeks solution X (on ailerons) before attempting to use them in my turbines.

Todd

Re: Discounts
 

Mike,
are you going to Prado this weekend for the Jet fly ?



Jackjet

8411 ?
 

hi guys,

i use the hitec 5945Mg digis in my revenge without any problems

This weekend
 

I am the Contest Director for the event this weekend at Prado. I am also covering the event for R/C Modeler Magazine.

See you there...

8411
 

r

8411 ?
 

Hey Mitchell send me all of the trash JR servos you got.....I have not had any problems with the 8411's and I have a bunch of them.

David Reid

8411
 

W

8411 ?
 

Mitchell,

Do you not check all of your primary flight control servos in an expendable airplane before putting them in an expensive plane? Or at the very least put them on a servociser? I would be interested to hear about the problems that you had with Horizon service, I have had really good service from them and have a gyro back there right now that had a problem. They have ALWAYS either repaired or replaced servos, etc... that have been defective. You slammed a product and a manufacturer without telling us the whole story.

To the orginal poster, I have over 25 of the 8411's in various planes and have never had a hiccup out of them. They have been very good and reliable servos for me. I will likely try the 8411sa on an upcoming project.

David Reid

Besides who made a smart ass comment anyway?

8411 ?
 

:( So...um...has anybody else tried the new Hitec digitals in their jet yet?!!!

Hitec's
 

Not yet Mike, but going to in the new bird

Jack

8411 ?
 

Mike,

How about telling us what the advantages would be. In the past some Hitec servos were less than desirable in our application. It would also be interesting to hear what turn around time is in the event of a problem, also where they are serviced. Does Hitec even make a high end radio system comparable to the JR 10X or Futaba 9C?


David Reid

8411 ?
 

um.. whats up with mitchells edited posts? did he say something he regrets? :confused:

8411
 

No I did not say anything I regret. What I said was what happened in my situation. It seems that others that have not had problems want to start a conflict over the facts. I do not want to be any part of it so the post was deleted.

Mitchell

8411 ?
 

Mitchell I had no intention of starting a conflict if you took it that way sorry. I always fly my primary control surface servos in a cheapo plane if I can.

DR

Funny!
 

GelCel,

Very funny! Some of the best stuff I've seen in a while on this forum. Wish I was that clever!


Jets Unlimited,

Revenge? Is that the jet in your avatar? Would love to see a bigger picture of it!

8411 ?
 

ok, here you got it ...............

http://www.flugmodellbau.de/images/0...enge_03_gr.jpg

Advantages/DIsadvantages
 

Advantages of the new Hitec digital servos:

1) GUARANTEED UNBREAKABLE GEAR TRAIN. We do not sell gear sets for our digital servos. If, for some reason, your gears break or strip, we will repair them for free.

2) GOLD PLATED CONNECTORS. This is a must.

3) CORELESS MOTORS (On 9 series) Precision coreless motors help enhance resolution and increase performance.

4) DIGITAL/PROGRAMMABLE (NOT A MATCHBOX). Know one else offer this flexibility for any servo.

5) UP TO 594 IN.OZ OF HOLDING POWER. That is not bad for a standard size $90 dollar servo.

6) TWO YEAR WARRANTY. Most hassle free service department in the industry.

7) SERVICE IN POWAY, CA. This is nice for locals. he he

8) ONE WEEK TURN AROUND ON ANY HITEC REPAIR. Literally one week.

9) 30% LESS EXPENSIVE THAN ANY OTHER DIGITAL SERVO. I am not sure how many people still believe in value!


Disadvantages of the new Hitec digital servos

1) I haven't found any yet. Sorry ;)

2) Please feel free to share any disadvantages you may have come across with the new Hitec digital servos. I am honestly searching for ANY valid feedback from jet modelers using the new digitals, weather the feedback is good or bad.

8411 ?
 

Mike,

Thanks for the info. I would like to find out more about them. Does Hitec have a radio system comparable to the JR 10X?

David Reid

high end radio
 

Hitec does not offer a radio comparable to the JR 10X yet. We will be releasing the Eclipse 7 Q-PCM late this year, but the eclipse only has 7 channels.

I spoke with the owner of Hitec during his visit last month about working on a possible new 9-10 channel high end system. He agreed that Hitec will eventually offer a system of that caliber. All in due time!

I hope this helps answer your question!

Revenge
 

Jets Unlimited

That revenge plane looks pretty cool! What power unit and undercarriage does it use?? How much?? When would they be available? I'm sure I'm not the only one interested.
Thanks
Dustin

8411 ?
 

I'd like to offer my experience with the HiTec service department .

Very positive, fast turn around, damaged parts were returned.

We had a situation on one of our GS Extra's that resulted in a vertical down line to an almost pulled it out pancake ground slapping/landing. Six HiTec 5945's were installed in the stabs for the elevators. All were damaged by the impact. I suspect the damage was caused by the instant reaction to something similar to slapping your hand down onto mother earth, not very forgiving... This combined with the weight of the elevators caused serious damage to all six servos.

I sent the servos to Hitec's service center explaining the cause. I received all of the servo's repaired at no charge within two weeks from the date they left my hands.

No Charge I was amazed....... Still em. We literally blew these servos up. Broken cases, gears, one motor, one amplifier, case tops with pin supports blown out all them destroyed by the user no fault of the MFG...

JR's 8411's are very good servos, unfortunately for me anyway they have been very expensive to maintain. On numerous occasions I have sent all of mine [100 plus] in for service. It always cost me money... Irregardless of fault. Horizon has warranted some of the repairs, but there seems to be a fine line between when and why they choose to do this... Crash damage no question your gonna pay for it at least $30.00 a servo if the gear train is damaged and more... Pins come loose in the caps, coreless motor's seem rather frail, gear train slop is rather evident as well, gears have a tendency to strip on the small in/output gear from bumping or shocking a surface.

For the jet's I'd recommend the 8411SA's for simple reason that they offer much better resolution due to the lack of gear train slop. Additionally they will last much longer for the same reason. As far as strength goes nylon gears were use with the venerable 4131 and 4721's without issue... Of course things are different now in the turbine arena and it's possible the nylon gears are no longer up to the task, however I doubt it. Properly setup control systems, surfaces and balancing of the surfaces were possible are/would be the key to success.

Re: high end radio
 

Mike,

Make the radio at least 10 channels. Even better, make it 12 channels and own the high end radio business.

Dennis Lott

8411 ?
 

Mitchell> oh ok. :)

Dust> lol.. i wasnt trying to be clever.. though it did turn out kind of funny now that i look at it.. hehehe. i was honestly asking actually.. i was reading throught the postings and then noticed the "M" and "." posts.. so i was rather intra-gued. ;) so i figured since this place has been a soap opera lately i might as well ask and see what happened.

<begin self plug-
i guess when you get a rep as big as mine for being as super awesomely clever and ultra-funny as moi, your reputation precedes you. :o :D </end self plug-

:D lol

-Joe-