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HomeAircraftHelicopterMain Discussion › CCPM 120 combined torque OZ/In
01-29-2018 06:48 PM  5 months agoPost 1
InvertedDude

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USA

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Just wondering if there is a baseline for using 3x servos at CCPM 120 Degrees with a combined strength of 314 oz/in torque @ .15/60 degrees?

Helicopter model is Trex 600N.

The reason I asked is that I want to use my 8311 in other applications.

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01-29-2018 11:53 PM  5 months agoPost 2
JuanRodriguez

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The Villages, Florida

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I don’t believe there is such a “baseline “ per se
The servos you choose should be selected according to your flying style ... ie, hot shot 3D ?? Sport flyer ? Or...... ????

Been there, done that and old enough to know better.....

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01-30-2018 12:36 AM  5 months agoPost 3
InvertedDude

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USA

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JuanRodriguez
Thank you, I talked to Rey and he uses 80oz 3x ccpm on his 90 birds. I think I am good based on Rey and Juan's! You guys take good care of me!

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01-30-2018 01:14 AM  5 months agoPost 4
wjvail

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Meridian, Mississippi

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Better servos make model helicopters fly better. Doesn't matter what stage you're at.

If you are just learning to land a fixed wing 40 trainer, sure, spring for the $11 Futaba 3003s. If you are flying a model helicopter, particularly a FBL helicopter, buy the best servos your budget will allow. In a flybarless helicopter the controller is updating the servos at a rate humans never could. Fast, powerful servos will only make the FBL unit's job easier.

An example: At some point in the past, years and years ago, I upgraded my Raptor 30 to the then new Futaba 9252s. I felt like a fool for spending serious coin on servos. I mean $300 on 4 servos? How much difference could Digital and Coreless make? Well the first tank of fuel made me a believer. The helicopter felt lighter, more connected, more powerful. Not just advertising hype. I could feel the difference.

To your question, how much torque does a CCPM helicopter require, I can't tell you; but, I would add, you can probably find quality, affordable servos that will supply at around 900 oz*in of combined torque for around $200 bucks for 3.

http://www.promodeler.com/coreless-servos.aspx

"Well, Nothing bad can happen now."

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01-30-2018 03:07 AM  5 months agoPost 5
ICUR1-2

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Ottawa, Ontario

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Fast servos are better they feel more connected. Also weight plays a role.
I was told when I started the 3 servos had to be strong enough to lift the model with out slowing down or getting hot after repeated use. You would test them by holding the swash and move the collective on the radio.

spending time, paying attention

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01-30-2018 03:13 AM  5 months agoPost 6
InvertedDude

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USA

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wjvail
Whoa! 900oz/in torque and SPEEED!

$200! WOW!

Wait a sec, are these good servos like Futaba/JR?

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01-30-2018 01:36 PM  5 months agoPost 7
wjvail

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Meridian, Mississippi

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InvertedDude
Wait a sec, are these good servos like Futaba/JR?
Very good question. I should have said this before supplying a link... I haven't personally used ProModeler servos. I can't personally vouch for them. But, everyone seems to say good things about them. Their reputation suggests they are very good servos but I can't personally confirm that.

It might make a good thread...

"Well, Nothing bad can happen now."

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01-30-2018 05:33 PM  5 months agoPost 8
nappyroots2182

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Moline, il

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Promodler servos have been around a long time. He's very into the heli side of the hobby. I'm helping him spread the word in the plank side now. They are superb servos for the money

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01-30-2018 05:51 PM  5 months agoPost 9
JuanRodriguez

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The Villages, Florida

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And you have personally used them ??

Been there, done that and old enough to know better.....

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01-30-2018 06:19 PM  5 months agoPost 10
gwright

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Champaign Il

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I've been using these on 600 and 700 machines for a few years. they are marketed as "car" servos" but they are sbus2, digital, 133oz/in and .12 speed. they're also 1/2 to 3/4 oz lighter than most swash servos in use these days. Best thing is they're $55 street price, so $165 for all three for swash control. Have not had any issues.
https://www.towerhobbies.com/cgi-bi...p?&I=LXDXFG&P=7
did have to send one in for a gear after a crash, but kindof expect to replace a gear after a crash. unfortunately the gear sets aren't available seperately but hobby services keeps all the individual gears. Inexpensive enough I just keep a spare in my toolbox. I fly lower headspeed smooth 3d, not the radical "hornet on crack" type stuff, so YMMV, but I'm very happy with them.

Gary Wright

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01-30-2018 06:47 PM  5 months agoPost 11
nappyroots2182

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Moline, il

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Yes I've been using a few sets of his new releases. Center prefect and no slop. He's been around the heli scene for a long time. He's well established and fun guy.

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