cyclic servos: Futaba 9452 or 9255?

[kaan.gok]

Everyone recommends 9452's for 600 nitro, I'm about to hit the button and buy some servos. 9255's are more expensive on tower, and recommended by Futaba for heli use, but allmost all of the time 9452's are recommended on the forums. Is it because of the speed difference? Which one should I choose?
I'm an intermediate flyer with loops and flips as the limit, I don't think I can do much better 3d at all :)

PS:I can buy 9255 servos cheaper than 9452's, so if they are better that would be double good for me :)

[Jim T]

Everyone recommends 9452's for 600 nitro, I'm about to hit the button and buy some servos. 9255's are more expensive on tower, and recommended by Futaba for heli use, but allmost all of the time 9452's are recommended on the forums. Is it because of the speed difference? Which one should I choose?
I'm an intermediate flyer with loops and flips as the limit, I don't think I can do much better 3d at all :)

PS:I can buy 9255 servos cheaper than 9452's, so if they are better that would be double good for me :)
What about 9252's for this size of heli? Especially for the type of flying you're describing? The reason I'm asking, is that I've got a Raptor 50 with an OX50 Hyper all built, that I'm thinking of putting servo's in and the 9252's were what was recommended to me (Heliproz). I'd be doing the same type of flying as you.

Jim

[frogbmth]

s9452 and s9252 are the same price, but the 9452 is rated at 6v and superior to the 9252.

s9255 is not 6v friendly either and the 0.17sec speed is pretty poor. How much are you getting them for? s9452 on ReadyHeli are $74.99 USD

[Jim T]

s9452 and s9252 are the same price, but the 9452 is rated at 6v and superior to the 9252.

s9255 is not 6v friendly either and the 0.17sec speed is pretty poor. How much are you getting them for? s9452 on ReadyHeli are $74.99 USD


I just noticed that the 9202's are nylon gears and the 9452's are metal gears.
Is 6v a better way to go? Also, it looks like if a 9254 is used in the tail, a step-down to 4.8v would be necessary.

Boy, so much to learn. :shock:

Jim

[frogbmth]

I'm running a 2s LiPo regulated to 6v using the 2-in-1, and a stepdown on the tail. Don't let the stepdown worry you, look here

http://www.helifreak.com/showthread.php?t=43934

Were you planning on running a 4.8v NiCd Rx pack?

[TheBum]

The S9252 also has nylon gears, further favoring the S9452. At my LHS, there's actually a $5 difference in price between the S9252 and S9452, but the superior specs of the S9452 make it well worth the price difference.

[invertmast]

im running 9252's here with no problem at all on 6v. ive flown a 600N w/ 9452's and i really couldn't feel much of a difference, but my heli w/ the 9252's felt like it was more solid around center.

[Jim T]

im running 9252's here with no problem at all on 6v. ive flown a 600N w/ 9452's and i really couldn't feel much of a difference, but my heli w/ the 9252's felt like it was more solid around center.


It seems to me that the pattern airplane guys run nylon gears for precision flying, so maybe that's why your feeling that with the 9252's. I'm wondering if it could be a case of metal gears for strength and nylon for precision?

When I talked to Heliproz the other day about equiping my Raptor 50, they recommended 3 ea. 9252's , a GY401 w/9254 on the tail, and a JR 2700 mah nimh receiver battery. I'm wondering if that might be a little old school. I'm set up to charge Lipo's for my electric stuff so wouldn't have a problem with that.

Jim

[TheBum]

Even the 401/9254 combo is becoming old school, although not as old as NiMH. The JR G7703D/DS8900G combo is rapidly gaining in popularity as an alternative. Everything I've read about the JR combo has been very positive and the prevailing opinion is that it performs better than the 401/9254, possibly even on a par with the GY611.

[frogbmth]

I agree, times change.

The 401 has been surpassed by some fantastic gyros at little more cost.

Seriously consider the Align 2-in-1 (new B6T version) package. You get a 1900 Rx LiPo, a regulated 6v supply and a handy onboard glow plug ignition system built in. It's a great package to get you going.

[kaan.gok]

Ok, I'll buy 9452's. I was asking just because 9255's are more expensive and have the name "digital heli servo" in the title at towerhobbies :)
Also Futaba's servo chart shows them as recommended servos for helicopters.
http://www.futaba-rc.com/servos/servo-application.html

[TheBum]

The 9452's were recommended by my heli-centric LHS as the next step below the JR DS8717s, so you're making an excellent choice.

[aevans692]

I would take a good look at the 8717, prob the best servo at the mo..

[frogbmth]

$330 USD for three isn't in the same class though

[boosst]

let me see if i have this straight....
i can run the 3 9452's and a 3151 for throttle behind the 2-in-1 with no stepdown?
now, i am planning on the 8900g rear servo w/ 7703d gyro, will that run on 6v or do i need a stepdown between them?
and ar7000 is fine with 6v too right?
thanks

[R1R 7humbs]

let me see if i have this straight....
i can run the 3 9452's and a 3151 for throttle behind the 2-in-1 with no stepdown?
now, i am planning on the 8900g rear servo w/ 7703d gyro, will that run on 6v or do i need a stepdown between them?
and ar7000 is fine with 6v too right?
thanks
We're running the 9452s behind the Align 2-in-1 without a step down (2s lipo). We have a step down for the JR 8900G tail servo (approx 5v).

[TheBum]

Everything you mentioned can be run on 6V except the tail servo. So, only a single step-down is needed between the gyro and tail servo. That's my plan.

[boosst]

great...thanks

[matrix1171]

my vote is for the Futaba BLS451's digital brushless motor $99.99 @ tower hobbies :thumbup: