The Futaba 7C comes with either 4 s3004 or 4 s3152 servos. The s3152 are significantly better, but the radio with them costs $30 more. If i put them in a Tiger 60, or something like that, is there any point at all to spend the $30 when i will notice basically nothing, or is it a good deal to get 4 servos that cost $20 more each for only $30 more total? What would you do? I mean $30 really isnt that big of a deal, but i dont want to waste money either. I fly only for fun, but i enjoy pushing a plane to its limits.

Either way im just gonna get another s3004 for throttle, since i will need 5 servos.

Thanks

Shortymet,
In a Tiger II or similar 60 sized plane standard servos will be more than enough for you. I would save the money and put it towards future purchases and stick to the standard servos now. Trust me, when you stay in the hobby you will find that you can almost never have enough standard servos around!!!

Ken

Totally up to you.
Keep in mind the s3152 servos are digital and will suck your battery down faster but not a problem if you are using higher capacity receiver batteries.

i think ill stick to the s3004 servos then. Thanks alot, lets see now though, i guess i can use that $30 on 2 gallons of fuel!

I would look at it this way,

3004 @ $12.99
3152 @ $29.99

$17 X 4 = $68

Your saving $38 and getting a much better servo.
I would spend the money.

The digitals may be overkill right now, but later on you could take them out and put them into a plane that would really benefit from them. Then, go buy four standard servos for the tiger, and you are still almost 40 bucks ahead!

What is the Hitec equivalent to a Futaba 3004?

HS-425BB

I would get the better servos now while you can and use them. No you won't notice any difference now but on your next plane you sure could. Over the years I have been buying the best servos I could find on sale and using my standards for things like throttle or in smaller planes. Always get the best you can when A deal comes up. I have A nice 120 size Kaos out in the shop and have everything to put it back in the air except servos because all I have left out there are standards and they just aren't strong enough. Everything else is being used in planes I still like to fly.
Sure wish I had more servos or some money to buy some more.[&o]

Take a look at the HiTec HS-322 more torque than the futaba 3004 also has the karbonite gear train.

HS-322HD deluxe servo with preinstalled round servo horn

Four (4) each: brass eyelets, rubber grommets, servo mount screws

Three (3) Additional Horns: 2-arm, 4-arm, adjustable 1 arm

Specifications:copyright (c) 2004 by TTi, Inc. All Rights Reserved

Speed: copyright (c) 2004 by TTi, Inc. All Rights Reserved

0.19 sec/60 degrees at 4.8V

0.15 sec/60 degrees at 6.0V

Torque: copyright (c) 2004 by TTi, Inc. All Rights Reserved

42 ounces-inches (3.0kg-cm) at 4.8V

51 ounces-inches (3.7kg-cm) at 6.0V

Size: LxWxH (1.6x0.8x1.4) inches (41x20x37)mm

Weight: 1.50 ounce (43 grams)

Universal Connector: Futaba, Hitec, JR, Airtronics Z with approx. 12" wire.copyright (c) 2004 by TTi, Inc. All Rights Reserved
An ultra strong, high impact, composite material that is at the heart of Hitec's revolutionary new geartrain. The new KARBONITE composite gear train has eliminated lash and slop forever. They are less likely to strip under the shock and loads that would usually break standard gears.

Found in all the "HD" (Heavy-Duty) and "HB" (Heavy-Duty Ball Bearing) servos. "Karbonite" gears are four times stronger than standard nylons gears and offer virtually ZERO wear even after 250,000 when tested! The result, you get better control with Hitec�s new KARBONITE gear technology.

Futaba S3004 has the same torque and ball bearings, but is slightly slower. Also someone pointed out that Hitec is the only one to use the Karbonite, and there's probably a reason that the 'name brands' don't use it.

SPECS: Speed: .23 sec/60° @ 4.8V .19 sec/60° @ 6.0V Torque: 44 oz-in (3.2 kg-cm) at 4.8V 57 oz-in (4.1 kg-cm) at 6.0V Length: 1.6" (41mm) Width: .8" (20mm) Height: 1.4" (36mm) Weight: 1.3 ounce (37.2 grams) Connector: "J" type with approx. 5" wire

I think HiTec is a name brand. Also cost from 7.95 to 9.95.

Looking at Servo City's website I think the Hitec HS-425BB and the Futaba S3001 are the equivalent the S3001 'precision' bearing has dual ball bearings, the 3004 just has one, which would be paired against the Hitec 325HB. The price difference seems to be $1.00 less for Hitec servos against Futaba of the same caliber. It's amazing the crap I'll do (researching servos?) to avoid doing schoolwork! But hey now I know. One day I even went so far as to sand my flight box I cleared off my desk, put on my study light, got out my favorite pencil, put my text and note books on my desk, sat down, and sanded my toolbox. I believe that nothing is harder than opening a textbook (doing the work never seems that bad though. Go figure!)

Ah we all do it. The the problem with the addiction.

That brought back memories from 20 years ago. Our apartment was never cleaner than during finals week. Anything is better than studying.

Well, Hitec is definitely a name brand now. At least I would consider them a name brand. However, there are reports of Karbonite gears being brittle and breaking easily. I have a few karbonite geared Hitecs and have never had a problem with them. But I do stay away from buying more of them now because of the reports.

We had a plane go through a metal roof it was a .60 size. We had 6 servos on board4 were 322 HiTec and the other 2 was 3004. Both of the 3004 had damaged gears the HiTec gears were not damaged. This made a believer out of me. I use HiTec HS-625MG and HS-645MG and have been trouble free. Not to say the other ones aren't OK because I have several Futaba servos that I have not had any problems with other than these 2.

I have had just the opposite, I have had quite a few stripped karbonite gears. I am not a fan of them.The 425 has plastic gears and have never had a problem.(to quantify I have stripped plastic Futaba gears)
Neither the 322 or 425 really completely compare to the 3004 Futaba.
The 425 has just slightly higher torque, better bearing setup, same plastic gears and similar price.
The 322 has similar bearing setup, same torque, karbonite gears and lower price.
Save money with the 322 and get a slightly worse servo (in my opinion) or spend the same money and get a better servo with the 425.

Hummm!! I guess they all have their ups and downs. I know the guys at our field swear by the Karbonite gears. I guess it depends on how they hit if they will withstand the impact. I can tell you when that plane went through the roof it bent the prop shaft at almost a 45* angle. Put a hole in the roof about 6" round. The only thing left on the roof was the wings. I had it covered in coverite fabric and it was not torn, but all of the ribs were no bigger than toothpicks inside the covering.

By the way it was my plane but I was not flying it.

Thanks for clarifying that Missileman.

Is it normal for the servo arms to be a little bit off from center when the tx is centered. Mine seem to be a few degrees off. I can center them with the trim button. I turn the servo arm in all directions and I still get that few degrees off with the best fit.

Sometimes its like that. Get as close as you can.

That's what the subtrim is for in your radio. Get it close, and then you can subtrim it to exactly where you want it.