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HelicopterRadio - Servo - Gyro - Gov - Batt › Best servo for eCCPM?
08-06-2007 10:47 PM  10 years agoPost 1
enahs

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Rapid City, SD

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I'll be getting an eCCPM machine soon and would like to know what servo would be best to use. I'd like to find a servo that will grow with me as I continue to progress into 3D and FAI type flying. I would just like to hear some suggestions on good servos to use that have good speed, torque, and centering ability. I'd also like to find a servo that is quite reliable/durable. I have been looking at the Futaba S9451 and Hitec's 6965 and 6975.

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Shane

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08-06-2007 11:15 PM  10 years agoPost 2
tadawson

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Lewisville, TX

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Have a gander at the new JR DS8717 - 192 Oz. of torque at .07 travel time at 6 volts . . . . this thing looks to be amazing!

- Tim

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08-07-2007 02:50 PM  10 years agoPost 3
enahs

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Rapid City, SD

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Thanks. Anyone else?

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Shane

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08-07-2007 03:04 PM  10 years agoPost 4
BarracudaHockey

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Jacksonville FL

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What size helicopter?

Andy
AMA 77227
http://www.jaxrc.com

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08-07-2007 03:08 PM  10 years agoPost 5
enahs

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Rapid City, SD

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50 size

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Shane

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08-07-2007 03:50 PM  10 years agoPost 6
BarracudaHockey

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Jacksonville FL

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Get 9252's or 9451s.

If you want to run 6v go for the 9451s.

Andy
AMA 77227
http://www.jaxrc.com

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08-07-2007 07:53 PM  10 years agoPost 7
BlueGarry1

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Romford, Essex, UK

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For F3C Flying use JR8301's. They centre really well, are powerful and very very good indeed on power consumption.

For 3D flying use JR8715's. Very fast and again very powerful.

I use the 8301's in my F3C set-up Airskipper 50. Its Great !!

I'm going to use the 8715's in my new 3D Vibe 50 later this year.

Futaba 9255's are also supposed to be really good !!

Bluegarry1

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08-07-2007 07:53 PM  10 years agoPost 8
jester4

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Brampton, Ontario

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I'm happy with the 9451's in my 90, so in a 50 they should be plenty strong and fast

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08-07-2007 08:14 PM  10 years agoPost 9
BarracudaHockey

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Jacksonville FL

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Why in the world would someone reccomend a 110 dollar servo for cyclic in a 50 size nitro?

Andy
AMA 77227
http://www.jaxrc.com

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08-07-2007 08:21 PM  10 years agoPost 10
enahs

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Rapid City, SD

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A 110 dollar servo is a bit out of my price range, but thank you for the suggestion though.

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Shane

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08-08-2007 01:40 AM  10 years agoPost 11
darkfa8

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Brick, NJ - USA

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you mean, CCPM machine

what's this e-crap anyway?

- Dan Goldstein
Team Revolectrix

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08-08-2007 05:28 AM  10 years agoPost 12
enahs

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Rapid City, SD

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I guess the "e" part is a bit of a dumb thing to put around here, but I have been lectured on it before and have read people lecturing on it. I have been told mechanical mixing (Raptor) is mCCPM and electronic mixing is eCCPM (Trex...etc). But I promise to use only CCPM from now on.

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Shane

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08-08-2007 09:31 AM  10 years agoPost 13
Busher

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Manchester, England

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I have just got a batch of Hitec 6965, and 6975, These servo's are great plenty of torque and very quick, I have just fitted a set to a Xero g 50 rappie conversion,and they are very good. Coupled with the programmer you can get the right throws sorted quickly for ccpm heli's

Busher

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08-08-2007 03:16 PM  10 years agoPost 14
BarracudaHockey

rrMaster

Jacksonville FL

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enahs you have it right, anything that moves the swash up and down to control collective pitch is some form of ccpm.

There's some old Kalt and Kyosho designs that didnt, they were true non ccpm.

But in todays terminology most people equate ccpm to eCCPM

Andy
AMA 77227
http://www.jaxrc.com

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08-08-2007 05:46 PM  10 years agoPost 15
darkfa8

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Brick, NJ - USA

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BarracudaHockey, so a Hawk Sport is CPPM by your definition.

actuality is the Hawk Sport, Raptor, Freya, among others are Mechanical

- Dan Goldstein
Team Revolectrix

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08-08-2007 05:54 PM  10 years agoPost 16
MJWS

rrKey Veteran

Airdrie, AB - Canada

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Heh. Title says 'Best' and 'That will grow with me'. That would be why you recommend the $110 servo for a 50.

I'm lovin the 5965's and 6975's in mine. 8717's are next, probably followed up with something nice on 8V from spektrum or whomever gets there first.

The heli's come, go, and crash. The gear sticks around forever. I just move it down the food chain when something better comes along.

Both your choices are excellent.

Mike

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08-08-2007 06:34 PM  10 years agoPost 17
BarracudaHockey

rrMaster

Jacksonville FL

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I really dont want to get into a debate about this since there's no clear definition but I will say this.

CCPM stands for Cyclic Collective Pitch Mixing so yes the Raptor, Freya et all are a form of ccpm, mechanical ccpm they use the same system to control both cyclic and collective.

The old Concepts, Nexus, Kalt Baron used a fixed swash and ran the collective through a hollow shaft or up the outside, thats true non ccpm.

Andy
AMA 77227
http://www.jaxrc.com

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08-08-2007 11:35 PM  10 years agoPost 18
darkfa8

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Brick, NJ - USA

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ok, if that's the case, then why do the cyclic and pitch servos on a Raptor operate independantly of eachother for each control input whereas on a Tiger 50 all 3 cyclic/collective servos work in unison to produce swash movement? what is the difference?

- Dan Goldstein
Team Revolectrix

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08-09-2007 03:36 PM  10 years agoPost 19
BarracudaHockey

rrMaster

Jacksonville FL

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CCPM doesn't mean all three servos work together, though that is one way to accomplish it.

Andy
AMA 77227
http://www.jaxrc.com

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08-09-2007 05:19 PM  10 years agoPost 20
npsk8ter

rrApprentice

Joliet, Illinois USA

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the new jr 8717s hands down!!!! You get what you pay for!!!! Next up for me would be futaba 9451s. A heli can only fly as well as it electronics can allow! Also you cant speed up a slow servo but you can slow down a fast servo!!!

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HelicopterRadio - Servo - Gyro - Gov - Batt › Best servo for eCCPM?
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