Servo upgrade?
 

Hey all,
Just wondering if anyone has some advice on cyclic servo choice for my Raptor 50 Titan. Ive been flying this heli for a couple of years now, and am thinking it may be time to upgrade a few things. I have Futaba S3151's all around except for the tail, which is a S9254. I'm wondering if I should stick to digitals, or maybe go to something like Futaba S9202. I am planning on switching the reciever from 72 mhz to 2.4, and have heard of some undesired servo deflection on startup when running 2.4 Ghz with analog servos. Is this a concern? I have also been looking at the Hitec H7975 HB servos, any thoughts on these? Maybe I should just save my cash and stick with what I have.

I am planning also to upgrade to lipo and run a regulator. I was thinking I would run a 6 volt system, but I would have to regulate the tail to 5.4, so I probably will just stick to 5.4 all around. I should also mention that my flying style right now is mostly sport, starting to work on flips and rolls. Would like to progress and am looking for gear that will get me there, but stay within the budget.

RE: Servo upgrade?
 

Anyone? Anyone at all...

To elaborate why I would consider switching from digital to analog, I realize the 3151's don't have the torque they should have, and I'm looking for the best servo I can find within my budget, preferrably something I won't have to replace again in 2 more years. Hitec has some contenders, but I've heard of some centering issues and gear wear issues. Just looking for opinions.

RE: Servo upgrade?
 

There's oodles of servos that will work.

The Align DS610s are good for the price. I personally run Futaba 9452s on the cyclic and collective or 9252's on mine with a 401/9254 on the tail on my 401 ships. Otherwise I use 611's with a BLS251

Hitec has some decent ones as well, I ran 5625's on 50's a lot over the years.

RE: Servo upgrade?
 

Thanks for the response. I realize this topic has probably been beaten to death, I'm just not really sure how important speed is in relation to torque. What I really want is a really fast, really strong servo that costs next to nothing. Oh, and it has to be super reliable.[sm=biggrin.gif] I know when it comes to speed, faster is better, but how noticeable is speed of a servo for a given torque? I also know accuracy factors into things and I don't want a bunch of slop in the servos a year down the road because I put some impressive specs ahead of quality.

RE: Servo upgrade?
 

I have been running Align 610 servo's for collective and cyclic in my Raptor 50 SE/Titan for the past 12 months with no issues. Got them again for my new 50 Titan SE. for the price, I don't think they can be beat. If you are considering full on 3D, then I believe these will not work so well. Sport flying with the odd loop, roll, flip & such less "demanding" moves they will perform great. Servo's like everything else in this hobby boils down to personal taste and budget.

RE: Servo upgrade?
 

Not sure why you say that, they are plenty fast and strong.

RE: Servo upgrade?
 

It's purely my opinion due to the fact that although the Raptor is refered to as a m-ccpm you only have 1 servo per function as to e-ccpm where you have 3 servos working together per function. I don't know if 9.6kg/cm is strong enough when you really banging the sticks around on a Raptor. e-ccpm would be the combined torque at 28.8kg/cm. Please let me know if my understanding is incorrect. As I said, it's purely my opinion.

Servo - Align DS610
Torque 4.8V - 133 oz/in (9.6 kg/cm)
Torque 6V - 166 oz/in (12 kg/cm)
Speed 4.8V - 0.10 sec/60 degrees
Speed 6V - 0.08 sec/60 degrees

Cheers

RE: Servo upgrade?
 

160oz is more than enough for the colllective on a mechanical mix heli.