View Full Version : What servos do you guys recommend on cyclic.
dhoff002
10-07-2008, 10:47 AM
I am trying to get my electronics together for the outrage 550, so I am ready to go when it comes out.
I already have a spartan gyro, and an 8900G for the tail.
What cyclic servos do you guys recommend for the 550?
also what esc? A jazz 55?
Dan
LITHIUMSTATIC
10-07-2008, 11:01 AM
I'm going to use 9252 on the cyclic. Solid G gyro with a 9254 on the tail. I may run mine on 8s and if so I'm going to use a Jazz 55, but if I use a 6s setup, than I may use a Castle 80 or Castle HV85.
Greg Alderman
10-07-2008, 01:05 PM
any high quality standard size servo will work...I believe that all my factory pilots are using the JR 8417's right now...but are testing the new InoLab servos we carry at Helidirect...
The 550 rotor head is naturally very quick and responsive...so going to Ultra fast servos like the 8717 on 6 volts would not really give very much extra (if anything) in cyclic speed
Ade_Law
10-07-2008, 01:15 PM
i transfered the bls351, spartan and bls251 from my knight. but it tottally depends on your skill level. anything from futaba 3152 and up will do the job just fine.
Ade
Long Nguyen
10-07-2008, 01:26 PM
My setup will be:
8s 3700 with z-power z30a 800kv
Jazz 55
S9452's for cyclic, 8900G for tail
v-bar? maybe
Rotortech 560's
Have you guys considered any of the newest generation of Hitecs? Have to admit that I like Hitecs as their service is second to none and I think they sell a good servo at a reasonable price. "Each to their own" on brand preference of course. ;)
Anyway, some of the newest Hitecs spec. very well. Whether I decide on the Outrage 550 or another brand I am gonna be installing Hitec-7966HB's for cyclic. HS-7965HBs provide a little more torque, and a little less speed as another choice.
Check them out, just another option.
http://www.hitecrcd.com/servos/show?name=HS-7966HB
Ade_Law
10-07-2008, 05:17 PM
i have tried hitecs in the past none of them have centred well. if you lean on them with your fingers they will move.
on the bls351s the servos the 6 arm horns bend before the servos move :-)
Ade
Ade_Law
10-08-2008, 12:53 PM
nice easy one :-)
bls351 have more torque, more accurate and longer lasting but slower.
Ade
Rotorworkz
10-08-2008, 02:08 PM
Super servo speed and ultra high torque is not really needed on 550 as the ratios can be programed from fast with high resolutions to ludicrous speed with low resolutions.
Anyway putting on silly fast servos is spending money that could be be better placed on packs IMHO that doesn't mean go cheap simply means look for a balance of torque and speed with a mixture of precision and low dead band
I have JR8417's and love them plenty of torque and speed to boot, centering is great! best all around servo IMHO
My borrowed 2 cents ;)
JaggedEdge
10-08-2008, 02:50 PM
Super servo speed and ultra high torque is not really needed on 550 as the ratios can be programed from fast with high resolutions to ludicrous speed with low resolutions.
Anyway putting on silly fast servos is spending money that could be be better placed on packs IMHO that doesn't mean go cheap simply means look for a balance of torque and speed with a mixture of precision and low dead band
I have JR8417's and love them plenty of torque and speed to boot, centering is great! best all around servo IMHO
My borrowed 2 cents ;)
Would 8417's be enough for flybarless?
Rotorworkz
10-08-2008, 03:06 PM
Would 8417's be enough for flybarless?
Yes
Ade_Law
10-08-2008, 03:58 PM
9252 or 9255 would be just fine, they were "the" servo to put on CCPM 90s not so long ago so will be great on the 550 even flybarless.
Ade
neohp
10-09-2008, 03:54 AM
we were wondering in another thread if the 9650 would provide enought power (61oz in 6v) for the head, provided that we use metal gears...
could be a light setup !
Ernie
10-23-2008, 08:26 PM
I am currently running 8717's on mine. Only because they did not have any 8417's at the time. The 8417 is a little quicker on 6v, than the 8717. And it has a all plastic case instead of the heavy metal case. I think the difference in weight is around 30 grams or so per servo, so the 8417 is the way to go.
Remember that JR servos have a 0 dead band, so they center dead on. The best flying servos I have ever used are the JR's.
Foxden
10-23-2008, 11:11 PM
Have to agree with Craig on the JR 8417's, I just changed out Futuaba 9452's for the JR's on Steven's 550 and they are performing perfectly
Jamesppp
11-19-2008, 10:12 AM
Im not a good pilot so my servos dont really get a hard workout but..I dont like Hitec's as they dont center well for me.
I have recently refitted my little Beam with Hyperion programmable servos and put them on my 620 Raptor from the get go. You can program the travel up to 140º. Turn the dead band down to 0µS. Select your transmitter type to match centering
tothe Tx's center and program the center within a fairly wide range.You can also program the speed anywhere in the range of the servo being used.
Im going to use thier coreless DS-20xx on my Outrage.They are not super fast, around .13 sec. They are available with lots of torque if neededor more speed and less torque. They have been, so far, a lot of bang for the buck at > 40bucks for the standard digitals and 47 for the coreless models. The tail servos in standard size are .06 sec with a low current drain. I havent determined whether or not they will work w/ a Spartan gyro yet but if so Ill use the DS-20 GMD on the tail
For old farts like me and people on a budget these are pretty nice. I like trying different stuff and just wish I had the skills to really wring em out, but it doesnt look like that is going to happen. For a couple of more dollars each they out perform the Futaba 3152's I have by far.....
Just another option.
Jimmy
You cannot turn the deadband down to zero, the deadband is just something we have to live with.
Jamesppp
11-19-2008, 12:29 PM
Excuse me, the deadband range is adjustable from 0µS to 16µS with default set at 2µS. With the programmer you can set it to 0µS or anywhere in the range.
You can also reverse the travel direction. This might be nice to set the travel directions to normal or the same on all of the helis in a model memory.
Jimmy
Heheheh you can adjust it to add more but there is a minimum dead band you cannot remove. It may say 0us but thats just 0us of ADDITIONAL deadband. There are servo testers that you can but to measure the deadband.
Jamesppp
11-19-2008, 12:42 PM
Deadband width 0µS to 16µS(2µs default) Im just quoting the specs as published. I was attempting to correct the original post where I stated you could dial it down to 0.
Quote:
Remember that JR servos have a 0 dead band, so they center dead on. The best flying servos I have ever used are the JR's.
__________________
Craig Martin
So, what is the deadband of these servos?
Well it's impossible to get 0 deadband per se it's possible to get it lower than the resolution of the rx ..... I'm an engineer i live on semantics :)
Jamesppp
11-19-2008, 12:55 PM
Perhaps, in the hobby industry, rating a servo at 0 microseconds of deadband is acceptable if it is less that a value of 1 but greater than the value that causes the servo to constantly jitter or hunt.
It seems to be a commonly used term with the current state of the art servos we have available.
Jimmy
Oh i agree 100% but iam an engineer and thus need to be difficult :)
Jamesppp
11-19-2008, 01:04 PM
Oh i agree 100% but iam an engineer and thus need to be difficult :)
Not all of them. I have trained many of them in the field.:D