Karbonite Limitations???  
View related threads: (in this forum | in all forums)

Tower Hobbies
Enter up to 4 keywords or Tower stock numbers
Logged in as Guest



Users viewing this topic: none
  Printable Version
       

All Forums >> Radios, Batteries, Clubhouse and more >> RC Radios, Transmitters, Receivers, Servos, gyros >> Radio Manufacturer Direct Support >> Hitec/MultiPlex Radios- Ask Hitec Customer Service >> Karbonite Limitations???
Page: [1]

Login
Message << Older Topic   Newer Topic >>
Karbonite Limitations??? - 8/3/2006 2:45:13 AM   
GarySS


 

Posts: 1632
Joined: 4/11/2002
From: Center of the Flyover States,
Status: offline
I apologize for probably a redundant question. Just what are the limits for Karbonite servos? I read that models over 12 pounds should not use them if there is only one per control surface. Also I vaguely remember they should not be used with gasoline engines (vibration). Are those the only recommended limits?

I am researching servos for a 6 pound 3D plane (Fliton Extra 330) powered by a Saito 100 which can vibrate more than the average 4/2 stroke. I am thinking of the HS-6975, 6895 servo series.
       Post #: 1

RE: Karbonite Limitations??? - 8/4/2006 12:16:23 AM   
MikeMayberry



Posts: 2864
Joined: 1/15/2002
From: Poway, CA, USA
Status: offline 		The 12lb limit is all you really need to worry about. Those servos would be fine... actually excellent since they are coreless.

Mike.

_____________________________

Hitec RCD Rep
http://www.hitecrcd.com

(in reply to GarySS)
       Post #: 2

RE: Karbonite Limitations??? - 8/4/2006 1:16:13 AM   
GalenB



Posts: 2008
Joined: 12/5/2001
From: Issaquah, WA, USA
Status: offline 		What about using them on a model with a gasoline engine? I bought a bunch (7) of 5475HB that I am planning on using on a Cermark Pitts S2B. I expect the final weight to be more than 12 lbs, but there will be a dedicated servor for each elevator half and each aileron (4). I am planning to use something stronger for the rudder...


_____________________________

Cheers!

(in reply to MikeMayberry)
       Post #: 3

RE: Karbonite Limitations??? - 8/4/2006 10:20:23 PM   
MikeMayberry



Posts: 2864
Joined: 1/15/2002
From: Poway, CA, USA
Status: offline 		The gas engine does not matter but if the model is over 12lbs with ONE servo per control surface then it is suggested that you go with metal geared servos.

In my opinion, the 5475's are not appropriate for that model.

Mike.

_____________________________

Hitec RCD Rep
http://www.hitecrcd.com

(in reply to GalenB)
       Post #: 4

RE: Karbonite Limitations??? - 8/11/2006 8:58:16 PM   
Texan



Posts: 484
Joined: 12/20/2001
From: Georgetown, TX, USA
Status: online 		GalenB,

On my Cermark Pitts, I'm running (4) HS 525bb on ailerons and (2) HS 6635hb digitals on rudder and elevator at 6V. I don't understand why the 5475's wouldn't work on ailerons. Each surface is rather small on a biplane with four ailerons.

(in reply to GalenB)
       Post #: 5

RE: Karbonite Limitations??? - 8/11/2006 9:26:20 PM   
GalenB



Posts: 2008
Joined: 12/5/2001
From: Issaquah, WA, USA
Status: offline
quote:

ORIGINAL: Texan
On my Cermark Pitts, I'm running (4) HS 525bb on ailerons and (2) HS 6635hb digitals on rudder and elevator at 6V. I don't understand why the 5475's wouldn't work on ailerons. Each surface is rather small on a biplane with four ailerons.


My thoughts exactly! Each aileron, or elevator half, is rather small by itself. I think 6 5475 servos on elevators and ailerons should be enough for a slightly larger than 12 lb model. I understand Mike's reluctance to endorse this setup (liability, Lawyers, etc), but that doesn't change the fact that in this case these servos are IMHO large enough at 6v for the job...



_____________________________

Cheers!

(in reply to Texan)
       Post #: 6

RE: Karbonite Limitations??? - 8/11/2006 9:37:17 PM   
Texan



Posts: 484
Joined: 12/20/2001
From: Georgetown, TX, USA
Status: online
quote:

ORIGINAL: GalenB


quote:

ORIGINAL: Texan
On my Cermark Pitts, I'm running (4) HS 525bb on ailerons and (2) HS 6635hb digitals on rudder and elevator at 6V. I don't understand why the 5475's wouldn't work on ailerons. Each surface is rather small on a biplane with four ailerons.


My thoughts exactly! Each aileron, or elevator half, is rather small by itself. I think 6 5475 servos on elevators and ailerons should be enough for a slightly larger than 12 lb model. I understand Mike's reluctance to endorse this setup (liability, Lawyers, etc), but that doesn't change the fact that in this case these servos are IMHO large enough at 6v for the job...


Are you planning to use one servo per elevator half? The stock Cermark Pitts uses a torque rod to join the elevator halves. If you use a pull-pull setup for the rudder, then the right side rudder servo location could be used to drive the right elevator half.

(in reply to GalenB)
       Post #: 7

RE: Karbonite Limitations??? - 8/11/2006 9:56:27 PM   
GalenB



Posts: 2008
Joined: 12/5/2001
From: Issaquah, WA, USA
Status: offline
quote:

ORIGINAL: Texan
Are you planning to use one servo per elevator half? The stock Cermark Pitts uses a torque rod to join the elevator halves. If you use a pull-pull setup for the rudder, then the right side rudder servo location could be used to drive the right elevator half.


That's the plan -- one 5475 per elevator half and a 56xx for pull-pull rudder! At least it has been for the last year since I bought this plane, servos etc... They're still sitting in the box in my garage...



_____________________________

Cheers!

(in reply to Texan)
       Post #: 8

RE: Karbonite Limitations??? - 8/11/2006 10:16:51 PM   
Texan



Posts: 484
Joined: 12/20/2001
From: Georgetown, TX, USA
Status: online
quote:

ORIGINAL: GalenB


quote:

ORIGINAL: Texan
Are you planning to use one servo per elevator half? The stock Cermark Pitts uses a torque rod to join the elevator halves. If you use a pull-pull setup for the rudder, then the right side rudder servo location could be used to drive the right elevator half.


That's the plan -- one 5475 per elevator half and a 56xx for pull-pull rudder! At least it has been for the last year since I bought this plane, servos etc... They're still sitting in the box in my garage...



Been there! You will really like the Cermark Pitts. It is an excellent flying plane. It does the most awesome inverted flat-spin... slow and very flat! Mine is powered by a Moki 1.35... Oh, to keep this thread on track; I'll keep an eye out for the Karbonite geared servos on my elevator and rudder. I'm using one Karbonite geared servo on the elevator. If it fails in flight... well, you know!

(in reply to GalenB)
       Post #: 9

RE: Karbonite Limitations??? - 8/11/2006 10:56:07 PM   
MikeMayberry



Posts: 2864
Joined: 1/15/2002
From: Poway, CA, USA
Status: offline 		The gears in the 475/5475 are 30% thinner than the 635/6635 so I would be more reluctant to use them vs. the 635/6635' here.

Mike.

_____________________________

Hitec RCD Rep
http://www.hitecrcd.com

(in reply to Texan)
       Post #: 10

RE: Karbonite Limitations??? - 8/11/2006 11:12:50 PM   
Texan



Posts: 484
Joined: 12/20/2001
From: Georgetown, TX, USA
Status: online
quote:

ORIGINAL: MikeMayberry

The gears in the 475/5475 are 30% thinner than the 635/6635 so I would be more reluctant to use them vs. the 635/6635' here.

Mike.


Thanks Mike, that's good to know. How would the 5475HB gear set compare to the 525 gear set?

Scott

(in reply to MikeMayberry)
       Post #: 11

RE: Karbonite Limitations??? - 8/12/2006 1:52:56 AM   
GalenB



Posts: 2008
Joined: 12/5/2001
From: Issaquah, WA, USA
Status: offline 		Thanks Mike this is good to know...


_____________________________

Cheers!

(in reply to MikeMayberry)
       Post #: 12

RE: Karbonite Limitations??? - 8/14/2006 7:34:20 PM   
MikeMayberry



Posts: 2864
Joined: 1/15/2002
From: Poway, CA, USA
Status: offline
quote:

ORIGINAL: Texan


quote:

ORIGINAL: MikeMayberry

The gears in the 475/5475 are 30% thinner than the 635/6635 so I would be more reluctant to use them vs. the 635/6635' here.

Mike.


Thanks Mike, that's good to know. How would the 5475HB gear set compare to the 525 gear set?

Scott



They are similar in thickness.

Mike.


_____________________________

Hitec RCD Rep
http://www.hitecrcd.com

(in reply to Texan)
       Post #: 13

Page:   [1]
All Forums >> Radios, Batteries, Clubhouse and more >> RC Radios, Transmitters, Receivers, Servos, gyros >> Radio Manufacturer Direct Support >> Hitec/MultiPlex Radios- Ask Hitec Customer Service >> Karbonite Limitations???
Page: [1]





Jump to: