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Midland Helicopters . HeliProz . Ron’s HeliProz South

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Scale Model RC Helicopters > Servos for Scale Flying
 
 
jonesjj
Senior Heliman
Location: Northern IL

My Posts This: Topic  Forum		Greetings All,
I was wondering if I could get some feedback on servos for a scale flying, what I will be building is the T-Rex 600 with MI-24 HIND Russian Attack Helicopter from RC Aerodyne http://www.scaleflying.com/product_p/tfmi246.htm

For this type flying would the JR DS821 servo be sufficient for cyclic? Torque: 72 oz-in @ 4.8v, 88 oz-in @6v Speed: .19 sec/60° @ 4.8v, .15 sec/60° @ 6v and has nylon gears.

I am trying to avoid spending 90.00 each for servos as this will not be flown 3D or even close to it.

Any input/suggestions for servos on this would be greatly appreciated.

Also I did not plan on doing a multi blade head as I dont know anything about them with regard to set up or flying, This project is going to pretty much stand off scale and it will be a Flyer not a Hanger Queen or display model.

The Multi blade head would be nice but again just dont know anything about them and I do realize that if I did go that route better servos would be a must.

Any feedback on multi blade heads would be great also as far as which one and how they work.
03-02-2010 03:30 AM
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rjhpilot91
Senior Heliman
Location: Elizabeth City, NC

My Posts This: Topic  Forum		I use futaba 3010, $25. Lots of torque and very fast just not digital. Ive got over 100 flights in a scale bird with them and even 3D them a bit in my Trex 600ESP.

Don't let people tell you you need digitals, analogs use less juice and are cheaper for scale birds.

Helicopters don't fly, they beat the air into submission!
03-02-2010 11:59 AM
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doorman
Elite Veteran
Location: E.Berne, NY

My Posts This: Topic  Forum		Servos

I like to use a coreless BB servo.... with good torque and not overly fast... for my sport and even competition machines, the Futabe 9202 has always been a solid choice and will not break the bank....

Good luck and welcome to the "Scale" side....

Stan

Team Hirobo/MRC --- RCLIGHTS.NET -----CC--- If there is a cure for this, please don't tell me
03-02-2010 02:15 PM
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helibeli
Senior Heliman
Location: wales.uk

My Posts This: Topic  Forum		I agree Futaba 9202 is an ideal servo.
03-02-2010 02:17 PM
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jonesjj
Senior Heliman
Location: Northern IL

My Posts This: Topic  Forum		I was looking around last night and found some Fut 9202 servos, these are analog 132oz at 4.8V and speed of .19 I think this may be the ticket here for this ship and the good thing is I already have them.
03-02-2010 03:03 PM
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rjhpilot91
Senior Heliman
Location: Elizabeth City, NC

My Posts This: Topic  Forum		Yeah I did have a set of 9202's on my 700E. They were very nice and have ball bearings which makes em a little nicer than the 3010 servos. Couldn't really notice a performance difference though.

Helicopters don't fly, they beat the air into submission!
03-02-2010 03:17 PM
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doorman
Elite Veteran
Location: E.Berne, NY

My Posts This: Topic  Forum		Forgot To Mention

I forgot to mention that Horizon has a warning on thier site about the 821 servo... not to use on heli's larger then a 30 size... something about the "vibes" causing the output gear to fail....
I have used them on up to 600E scale helis with no problems, but I guess the nitro birds tend to vibrate a bit more!!!!

Good Luck with your scale project.... I will have to take a look at the 3010 servos some time.... but you can be comfortable with the 9202'sStan

Team Hirobo/MRC --- RCLIGHTS.NET -----CC--- If there is a cure for this, please don't tell me
03-02-2010 03:24 PM
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East Coast Scale
rrAdvertiser
Location: Taxachussetts

My Posts This: Topic  Forum		Jeff
9202 servos are only 56 oz at 4.8
9206 are 132 at 4.8. I believe this is what you want.
Joe
03-02-2010 03:58 PM
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BeltFedBrowning
Veteran
Location: Kansas City, MO USA

My Posts This: Topic  Forum		I use the Futaba S3305, metal gear and 100oz torque. Only $35.

You won't care so much about what people think of you when you realize how little they do
03-02-2010 04:07 PM
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jonesjj
Senior Heliman
Location: Northern IL

My Posts This: Topic  Forum		Hey Joe,

Nice hearing from ya been a long time since we spoke, we will have to do something about that.

You are right the 9206 are 132 @ 4.8 and the nice thing is I already have them, just found them last night in a box of stuff.
03-02-2010 04:23 PM
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BarracudaHockey
rrMaster
Location: Jacksonville FL

My Posts This: Topic  Forum		Dont use 821's on a nitro!

Andy
AMA 77227
http://www.jaxrc.com
03-02-2010 04:57 PM
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jonesjj
Senior Heliman
Location: Northern IL

My Posts This: Topic  Forum		No nitro for me these mechanics will be the T-Rex 600 electric going in this fuse.
03-02-2010 05:24 PM
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Antsis
Senior Heliman
Location: Kent, United Kingdom

My Posts This: Topic  Forum		I was using S3152,s on my MD500/Trex600e. They push out 69oz at 4.8V and are fine with the conventional head. However, I have test flown the model twice with a 5 blade head and noticed that the head will oscillate when it gets hit by a gust of wind. This is a little un-nerving as the servos are also plastic geared, so there could be a risk of stripping a gear. I have just changed them for ACE 1313 coreless digitals.

Ant
03-02-2010 06:36 PM
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DCORSAIR
Senior Heliman
Location: Selma, Calif.

My Posts This: Topic  Forum		Hitec

Look into Hitec servos, they may just be your answer. They are all I use in my heli's. 625MG-76oz, 645MG-103oz or better yet the 965MG-103oz or 985MG-133oz coreless servos work great all at 4.8v or 6v is even more torque.

D. Lee.....t.Born again.t.....
03-03-2010 05:45 AM
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