armody

My Feedback: (10)

Hi y'all,

I need to get some of the thoughts on these servos. Has anyone used it or been using it on 69" to 80" wing span plane?

http://www.hobbypartz.com/kahaoubrmo14.html-> Can I use these servos on this plane ? http://www.nitroplanes.com/ni20moya1206.html

If yes, can you compare these servos with these of Hitec?


http://www3.towerhobbies.com/cgi-bin...&I=LXUZ89&P=ML


Thanks in advance

Mody

w8ye

My Feedback: (16)

I use the Hitec 645's and have had great success with them

lazyace

My Feedback: (126)

+1

mighty9

My Feedback: (10)

I have multiple planes outfitted with hitec 645s and love them.They arnt the fastest servo but are a true work horse.

Rocketman_

If you are looking for reasonably priced servos, here are a couple of name brand options for you to compare.
I'm usng these in my NitroPlanes 69" YAK 54 powered by a YS 1.10 4-stroke glow engine. Futaba S3010 Standard High-Torque BB Servo. http://www3.towerhobbies.com/cgi-bin...&I=LXDTB3&P=SM.

Another Futaba option would be the Futaba S3305 High-Torque Standard Servo w/Metal Gears
http://www3.towerhobbies.com/cgi-bin...&I=LXDWF8&P=SM.
I'm using them in 76" 3D planes powered by 36cc gas engine and 1.60 cu in glow engines.

I have been flying both of those servos for years in 3D planes and haven't found the need to spend excessively for torque overkill.

mighty9

My Feedback: (10)

I agree with rocketman on the torque overkill.We used to fly giant models with 50oz servos. Heck i have a 7 year old 1/3 scale cub that weigh around 30 pounds that has had stock 3004 servos in it all its life.I also have another 30 cc extra with stock spektrum servos no issues.I do have several planes with high end servos and i can feel the difference.But for everyday fun relaxing flying i dont need them.

chris923

My Feedback: (53)

I vote for the 645's. I have yet to have one fail in any of my gassers!

Chris923

Pelle Gris

I use 645´s almost exclusively. Best servos I have ever tried. Reliable, quite powerful and cheap.
On throttle/choke I normally use standard Futaba 3001 servos. Old-school reliable workhorses.

WRK

My Feedback: (2)

I prefer a servo that is a bit faster and has a bit better centering but the 645 is a good servo for a lot of applications.

BarracudaHockey

My Feedback: (11)

If by stock servos you mean 821's then you're way beyond the manufacturers own warnings about them.

armody

My Feedback: (10)

Guys,

Thank you very much for your input but I haven't been answered what I'm looking for.

Can anyone tell me about these particular servos?

http://www.hobbypartz.com/kahaoubrmo14.html -> Can I use these servos on my nitro models yak 54 120?


If these above mentioned servos are not very reliable, then rather than spending $32 on each servo can I use these servos?

http://www3.towerhobbies.com/cgi-bin...?&I=LXXCZ9&P=M If these are not the right servos, then I'm thinking futuba's S3010 or something lower than $32 Bucks.


Thanks


Mody

raptureboy

Is your plane worth more than 4$ If so stay away from Tower Pro servos. Cheap chinese junk. Sometimes they work and sometimes they don't. What does the plane maker recommend in torque? I agree the hitecs are good and so are the futaba's. Spend a little now or alot later.[:@] I use the 485's in my 1/4 scale biplane on a 6v battery for max torque, and there's no problem.

armody

My Feedback: (10)

raptureboy,

You are absolutely right and this is what exactly I wanted to know. Plane is Yak 54 120 by nitro planes, and their manual says nothing about servos or anything

http://www.nitroplanes.com/ni20moya1206.html

May I use all 485 servos on it?.

Mody

3136

Armody, it 's only a little plane but it's no comparison to a 1/4 biplane.
You will fly this at three times the speed and have large control surfaces under much larger strain.
I use 5645, they are faster and more powerful than the 645, but they use more power.
If you stack your plane and get a bigger one you can use those servos in it.
Maybe a bit of overkill but what is the price of the safety of everone at the field?
645  http://www.hitecrcd.com/products/ana.../hs-645mg.html
5645 http://www.hitecrcd.com/products/dig...hs-5645mg.html

It all comes down to what is the price of safety?

Regards Mark

geeter

My Feedback: (110)

i say hitec hs 645 mg servos should do it. definitly use mg servos in a gas plane.......RON

AJsToyz

I would not go with plastic gear servo's on this plane. I lost a 1.20 Extra do to an aileron servo stripping a gear. it was the CMP Extra that is sold at Nitroplanes. If it were a Cub, a Trainer , or even a Warbird with smaller control surfaces, no big deal.

Andy

mighty9

My Feedback: (10)

I like to live on the edge.Ive never had a servo fail in flight since ive been in this hobby.Over 25 years now. I dont fly my planes on the ragged edge like some do though.

tmaucher

Go to HobbyKing website and you can get great mg digital high volt servos for not much over $4. Definately go mg and the rest is optional. The servos if they really do have the torque stated will work, but the cheap plastic gears will not. The old saying that you get what you pay for is definately not as true as it once was. Allmost all servos come from china so go chinese they need our money and they are thankfull for it.

captinjohn

Yup +2 Capt,n

Airplanes400

My Feedback: (349)

I second this. These HiTec 645's are great, reliable too. Never a problem, and the price is great. To match the amount of torque in these servos, you would be paying more than $100 for comparable Futaba or JR servos.

Rocketman_

You might want to check the numbers.

Hitec HS-645MG High Torque Metal Gear Servo $31.49
-Torque: 106.93 oz-in at 4.8V
-Torque: 133.31 oz-in at 6.0V
-Speed: 0.24 sec/60° at 4.8V
-Speed: 0.20 sec/60° at 6.0V
-Length: 1.59"
-Width: 0.77"
-Height: 1.48"
-Weight: 2.11oz



JR ST126MG High Torque MG Servo $37.99
-Torque: 126 oz.in. at 4.8V
-Torque: 142 oz.in. at 6.0V
-Speed: 0.21 sec/60 deg at 4.8V
-Speed: 0.17 sec/60 deg at 6.0V
-Length: 1.52"
-Width: 0.73"
-Height: 1.33"
-Weight: 1.60 oz

w8ye

My Feedback: (16)

The number one servo at the field where I fly is the Hitec 5645 for $47

SPECS:
Speed: 0.23 sec/60° at 4.8V
Speed: 0.18 sec/60° at 6.0V
Torque: 143.03 oz-in at 4.8V
Torque: 164.2 oz-in at 6V
Length: 1.59" (40.6mm)
Width: 0.77" (19.8mm)
Height: 1.48" (37.8mm)
Weight: 2.11oz (60g)

The 645 is only used by old farts like me to fly casual planes

dlaird

in answaer to your question yes the sg5010 servos will work ......the only drawback is how large your surfaces are they are not a metal geared servo. so while I have used them on a 25% sbach 342 and a 88" extreme flight yak-54 there is always the possibility of failure.
for just a few dollars more you can go to troy built models and pick up a set of powerhd 1501 servos that are twice as strong with dual ball bearings and 215 in/oz of torque for a very low price.

Dave

3136

OMG you have got to be kidding.
Do not use these unless you expect them to fail and you ar 200+ kilometres from anyone you can harm.

5645 Hitec are the way to go, but expect to use a bigger battery, digitals will drain more.

Regards Mark

pmerritt

My Feedback: (118)

If you are price shopping you can get these off of that huge buying/selling site for $28.00 shipped to your door.