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Home✈️Aircraft🚁HelicopterThunder TigerOther › Futaba or Hitec Servos for Raptor 50?
09-06-2006 10:31 AM  14 years ago
smj

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cambridgeshire uk

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9252's are slower,.14sec,not sure what kg they put out,but i doubt its got plenty of torque either.Don't get me wrong,still a good servo,but there is better....
I dont like the idea of putting my reciever and servo's under a 6v load,thats why i got the hitec servo.
"All people have the right to stupidity but some abuse the privilege."
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09-06-2006 01:02 PM  14 years ago
jsenicka

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Eagle River, WI

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9252's run at about 92 oz torque at .14 on 4.8. They are great on a R50. And based on personal testing/flying, will run a 90 size bird pretty darn well too!

I have an R60 and R90SE running Hitec's. 6965 on cyclic and 6975 on Collective, all on 6 volt, with a regulator in line for the gyro.

Receivers (pretty much all of them ) are made to run on 4.8 through about 7.2 volts. So there is zero issue with the RX side. It is only gyro/tail servo sets that have had problems with 6+ volts.


For me, I chose based on specs, price, availability, and what folks I trust have run. I run Futaba TX gear, because I have a bunch of Futaba receivers I obtained over the years. Without that, I would just as easily run JR TX. I have gyros from JR (G5000T/8700G in Raptor 60 and Raptor 90SE), CSM (CSM560SL/9254 in Stinger 90), and Futaba (401/9254 x2 in my two Raptor 50).
I run Hitec 69xx series in my R60 and R90SE, so I trust the Hitec stuff in my high end helis. I run Futaba digitals in the Raptor 50's and Stinger 90 because the 9252's are fantastic all around servos and I got a few sets of them at a great price. I run 100% PCM receivers and digital servos. PCM because after losing two helis to glitches, it makes me worry less. Digitals because the precision feel is too good to pass up.

So what is the point? Modern day electronics are wonderful. Good stuff can be had from all the major vendors. The folks who scream about one brand being better that the other because it is their brand are the same folks with the little Calvin charecter peeing on the the other pickup truck manufacturer logo....

I would say do a bit of research, and find out what people run, and if they have had problems or not. Folks shouting "never run this servo" who have never run them, and got their data from a friend who heard from a friend do not constitute valid data points.
Jim Senicka
Team Manager, GrandRC Flight Team
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09-06-2006 01:23 PM  14 years ago
PaulJC

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Hertfordshire UK

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I've got 6 6975's spread over 2 ships an havn't had any problems with them at all, good performance, good price.Re-entering the atmosphere...
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09-06-2006 03:17 PM  14 years ago
jsenicka

rrProfessor

Eagle River, WI

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Rockohaulic,
no issues with twitchy at all.
The only way that would occur would be a twitchy setup to start with that was masked by sloppy servo throw around center.

On the 50's I run about +/- 9.5 degeees on collective, and about 7 degrees max cyclic pitch. I use 20 percent expo in idle up and 30 in normal mode. Both helis are rock solid in all flight routines.

I found that going from analog to digital made the whole bird feels more solid, and going from FM to PCM made it even better.
Jim Senicka
Team Manager, GrandRC Flight Team
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09-06-2006 06:58 PM  14 years ago
Zaneman007

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Texas - USA

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The only 2 things I have against digitals are that they drain the battery and give you less run time, and I've had someone describe their 50 as going from smooth and stable to twitchy like a Trex when going from analog to digital
I experienced the exact opposite. The analogs were all over the place. Keeping a hover was a work out. The digitals on the other hand are smooth and center great. I have a Raptor 50 with digitals. I can take my hands off for a good two to three seconds. It will just sit there and hover. I do not know how that translates to twitchy? I also have a Trex 450xl. It is not twitchy at all. It goes were you put it. I would describe it as fast, very fast and responsive.

My point being, I agree if you want a slower response and you are use to putting in a bit of cyclic to keep it at a hover go with a slower analog servo. Now, if by twitchy you mean fast and responsive, then get fast servos and go digital.

It all depends on your flying style, IMO.
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09-06-2006 06:58 PM  14 years ago
J3DI

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Oswestry, Shropshire. UK

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Got 6975 on collective and it gets hammered all the time - it's great
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09-06-2006 08:15 PM  14 years ago
gamedemon3000

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Goose Bay, Newfoundland & Labrador, Canada

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why dont everyone just spend $114.99 each and outfit their helis with the Hitec HSR-5995TG Ultra Torque servos for cyclic and collective and never worry again?

I am being a little sarcastic, but WHAT A POWERFUL SERVO!!!

Max torque - 417oz/in
Max Speed - 0.12sec/60deg
Titanium gears (perfect for a Raptor Titan)

http://www.servocity.com/html/hsr-5...tra_torque.html
Derek O'B
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09-06-2006 08:33 PM  14 years ago
rob10000

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Western Massachusettes

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Some people use them. IMHO, on a MCCPM machine all that torque is overkill.

I prefer a faster servo like the 94758Z. It's TWICE as fast as your Hitec.
Torque - 115 oz-in
Speed - 0.06 sec/60 degrees.

I also like the Hitec 6965.
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09-06-2006 09:02 PM  14 years ago
Rockohaulic

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Canyon Country, CA, USA, 3rd Rock from the Sun

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Twice as fast - yes, but it takes twice as long to say!

Who makes that one??
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09-06-2006 09:09 PM  14 years ago
Rockohaulic

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Canyon Country, CA, USA, 3rd Rock from the Sun

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Hmmm - Fact: Titanium is not as strong as steel.

Contrary to popular belief, it is lighter than steel (but not aluminum), and it is stronger than aluminum, but it is not stronger than steel. Any mountain biker with a Ti cassette can tell you that. The larger, less stressed gears are Ti, but the smaller, higher stressed gears are steel.

So, other than weight, what does a Ti servo offer? Since it is weeker than steel, does it mean it will develop slop faster??

I guess the bottom line is: is the metal in metal gear servos steel or aluminum???

Rockohaulic
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09-07-2006 03:48 PM  14 years ago
jschenck

rrProfessor

La Vista, NE.

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*most* metal geared servos use brass for the gears.

IMO, for cyclic and pitch:
$30 servos = Hitec HS635
$70 servos = Futaba 9252
$100+ servos = lots of good choices, each with +'s and -'s
(e.g. JR 8611's, Hit5995, Air 94758 & the KO's)
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09-07-2006 07:17 PM  14 years ago
Raffy

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Chicago, Illinois

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Futaba 9252 all around on my R50SE with Futaba 401 gyro.

It's not about the speed of the servos, its your reflex that matters most.
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09-07-2006 09:04 PM  14 years ago
glfloat

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Santa Monica California

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I have to say Hitec is one of the most under-rated servos out there and the thing is... they are amazing. I've got 6975 metal gear servos everywhere on my heli. For one, they are fast as hell, and they have lots of torque for their speed. I found they are the choice for me when I want torque AND speed. I run mine with a 3000MAH battery and get about 3 flights. Burt (Flytech) runs the hitec servos on a 6v system on his rappy 90s. And if you ever see how agressively he flies.... I mean there is no doubt the strength, durability, and speed of these servos.

You can say what you want and there are lots of openions, but I've seen these servos work, and trust them on my machines.

- Austin
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09-07-2006 10:56 PM  14 years ago
Rockohaulic

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Canyon Country, CA, USA, 3rd Rock from the Sun

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glfloat

3000 Mah battery - is that the one with the 4 sub-C cells?

How do you like that battery??
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09-08-2006 12:49 AM  14 years ago
Roamer

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Albuquerque, NM

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I'm still a Futaba man, but my opinion of Hitec servos IS improving. The first HT servo I bought was the 605MG. I bought it for a steering servo for my RC10GT.

Frankly, the quality of the servo was junk compared to my Futaba's at the time (9202s for the most part). But, it DID serve it's purpuse and it did keep running. Just not nearly as smooth or as well centered as my Futaba's.

The next servo was a 5925 I bought to replace the 605MG when I gave that servo to my brother for his T-Maxx. The 5925 was a MUCH better servo than the 605MG. It was much smoother right out of the box, had better centering and just worked very well.

That servo worked well enough that I bought it's brother the 5945 to steer my Monster GT a few months later. Needless to say, it is pretty much exactly the same as the 5925 (gear set is the only difference). This servo has taken some pretty good abuse on my MGT and is still running strong.

Unfortunately, the very first time I saw a heli fly with Hitec servos (comparable to the 59 series, but I don't remember exactly what servo it was), I saw a heli crash due to a servo failure when the aileron servo locked up. It was even worse because several folks at the field commented that the pilot was playing with fire for using Hitec servos in an heli right before the crash.

But, even with this setback, I AM coming around. The more posts I see by folks that have had nothing but good luck with Hitec servos, the better. Eventually, I'll take the plunge and give there new servos a try.

Just not quite yet.
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09-09-2006 10:46 PM  14 years ago
arceye

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UK

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I like Hitec 6965 and 6985 servo's when it comes to value for money and compairing specs to other brands, my only issue is that when on the bench they never return to the same center position once moved, But in flight this doesn't seem to create any problems.
I have never heard a bad thing ever said about futaba 9252's so they are a tried and tested servo but they are more expensive and have been discontinued and replaced with 9255 which I think are slower but have more torque, ( I do still see 9252's in stock at lots of places though ).
Why not look at JR servo's they also have a good range of servo's with good specs which are also tried and tested.

In the end it will come down to choosing the servo that you like the specs of and has a price you like ( which hitec seem to have the edge on )

Personally I use futaba digital 3152's on cyclic which are not really fast but they work, and futaba 9404 analog on pitch which is fast but no powerhouse on torque ( again it works ), with these my heli gets thrown around every which way I like without problems. When it comes to changing them which I am planning on doing soon I will be buying 6965's for cyclic and 6985 for pitch.


Andy

Kasama Head :(
The Blingiest DOWNGRADE a Raptor can have
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09-09-2006 11:01 PM  14 years ago
jschenck

rrProfessor

La Vista, NE.

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Futaba 9252's are cheaper than Hitec 69X5
Hitec HS-6965/85 - $79.95 ChiefAircraft
- $67.99 (20% sale) servocity

Futaba 9252 - $65.99 Heliproz (Not advertised)
- $59.95 OnlyRaptors
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09-09-2006 11:52 PM  14 years ago
arceye

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UK

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jschenck:

Sorry I didn't look at US prices I look at UK prices where Futaba 9252 are £74.99 and the hitec 6965 are £49.98 and 6985 are £53.99 giving quite a considerable saving for the hitec.

Kasama Head :(
The Blingiest DOWNGRADE a Raptor can have
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09-10-2006 12:01 AM  14 years ago
Roamer

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Albuquerque, NM

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Heli flying is no more expensive than a weekend drinker
Its heli crashing that costs money
What do you know! That holds true for the weekend drinker too!
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09-10-2006 01:03 AM  14 years ago
firefox

rrApprentice

Thailand

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In case anyone's wondering about the real cheap prices on the S9252 quoted above, I just did a bit of checking. The price at Realraptors.com is indeed $59.99, but you have to pay $9 shipping *per item* for UPS ground (the only choice for these blowout items), for a grand total of $68.99 each.

As for the price at Heliproz, it's $74.99. If you order 3 or more, it drops to $69.99, and you get free UPS ground shipping on all orders above $100. Not much different from realraptors.
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Home✈️Aircraft🚁HelicopterThunder TigerOther › Futaba or Hitec Servos for Raptor 50?
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