Throttle Servos For Gassers - HeliFreak
Fun, Learning, Friendship and Mutual Respect START  HERE


Unregistered
Go Back   HeliFreak > R/C Helicopter Support > Gasser Helicopters


Gasser Helicopters Gasser Specific Discussion


Reply
 
LinkBack Thread Tools Display Modes
Old 11-20-2012, 05:50 AM   #1 (permalink)
Registered Users
 

Join Date: Jan 2008
Location: Queensland, Australia
Default Throttle Servos For Gassers

Hello Gasser RC Heli pilots.

I have searched the forums and haven't found any recent discussions on suitable throttle servos for gassers.

What I'd like to see is:

1) What qualities are needed for a gasser throttle server.

2) Recommended throttle servos for low voltage (nom 5 volts).

3) Recommended throttle servos for LiFe(2S).

4) Recommended throttle servos for LiPo (2S).

A discussion in one thread should be useful for newcomers to gassers and others needing to replace throttle servos.

Regards

Acrow
acrow is offline        Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 11-20-2012, 06:32 AM   #2 (permalink)
Registered Users
 
Posts: 4,631
 

Join Date: Nov 2008
Location: Buffalo Area
Default

I think you don't see much discussion since it is not a highly stressed servo. I grab used cyclic servos I have kicking around, DS610, DS620, S9452 have all worked without issue. On any heli with a governor, you do need reasonable speed for the servo to react quick enough. Just because gassers are not cheap, I would not use a cheap servo on the throttle.

Linkage on a gas servo is important.
fastflyer20 is online now        Reply With Quote Quick reply to this message
Old 11-20-2012, 06:36 AM   #3 (permalink)
Registered Users
 
Posts: 2,819
 
My HF Map location
Join Date: May 2010
Location: Turkey
Default

Quote:
Originally Posted by fastflyer20 View Post
I think you don't see much discussion since it is not a highly stressed servo. I grab used cyclic servos I have kicking around, DS610, DS620, S9452 have all worked without issue. On any heli with a governor, you do need reasonable speed for the servo to react quick enough. Just because gassers are not cheap, I would not use a cheap servo on the throttle.

Linkage on a gas servo is important.
+1

I use DS650's on my 2 gassers. Over 2 years and no problems so far.
__________________
Suat
Trex 700 Gasser
FBL | HeliBug HB7-RC 17T | Silverline V-Bar| TRM VX290TT | SG | RJX Gas muffler (modded)
Trex 600 Gasser FBL | HeliXHeli conv. | OS GT15HZ | iKon | Homemade onboard generator
Azalin is offline        Reply With Quote Quick reply to this message
Old 11-20-2012, 09:00 AM   #4 (permalink)
Registered Users
 
My HF Map location
Join Date: Jan 2007
Location: Dallas Texas
Default

+2
I run Futaba BLS 451 on all my Gassers at 8.4V.
Works fine. No Failures.
__________________
doug

TRM Power - RC Racing Engines - - VP Racing / Powermaster Fuels
Aero Hobbies - Lewisville, TX (972) 420-1414
Doug Darby is offline        Reply With Quote Quick reply to this message
Old 11-20-2012, 11:51 AM   #5 (permalink)
Registered Users
 
Posts: 2,877
 

Join Date: Jun 2005
Location: Bend OR/Houston TX
Default

As I'm running Savox servos, I went it the SC-0352 Digital servo


Dimensions(mm):* 40.7X20.2X39.4
Weight(g):* 42.0
Speed(@4.8V sec/60):* .16
Torque(@4.8V oz-in):* 58.3
Speed(@6.0V sec/60):* .13
Torque(@6.0V oz-in):* 90.3
Gear:* Industrial Plastic
Bearing:* 2BB
Case:* Plastic

All for $27.00

Powered with a LiFe 2100mah pack.

Works for me
__________________
Rudy - Currently in ??? It depends on the day of the week where I am

We had a great country once. You know what made it great? “I can.” Then the weak came along, “the I cant’s” and destroyed it.
Rudy is offline        Reply With Quote Quick reply to this message
Old 11-20-2012, 08:56 PM   #6 (permalink)
Registered Users
 

Join Date: Nov 2010
Location: Canada
Default

I plan high voltage system as I already have 3 HV for cyclic, I made a long search and I bought this:

Hitec HS-5495BH Digital Standard High Voltage; 23,95$ + 7$ shipping.
Karbonite gear
Speed: 6.0v / 0.17 sec/60
Speed: 7.4v / 0.15
Torque: 6.0v, 88oz
Torque: 7.4v, 104oz

I don't know if it's good, other HV option are 4X this price.
__________________
T-rex 600E pro
T-rex 450L
Coaxial Collective Pitch 550
martin_ is offline        Reply With Quote Quick reply to this message
Old 11-20-2012, 09:33 PM   #7 (permalink)
Registered Users
 

Join Date: Apr 2011
Location: Australia
Default

Hyperion make some nice servos, they have HV ones that are less than $40. Not tried their STD size ones, but no issues with their mini or micro versions.
__________________
-DX8
-MSH MiniProtos Stretched, SK720, DS95/DS95i, Hyp 4S 25C 2500mAh
-MSH Protos Stretched, Brain, Hyp DS16/BLS251, 6S 3000mAh
-Goblin 500, HC3SX, Hyp DH16/MKS980BL, Scorp 4015-1100
desertstalker is offline        Reply With Quote Quick reply to this message
Old 11-21-2012, 02:40 AM   #8 (permalink)
Registered Users
Thread Starter Thread Starter
 

Join Date: Jan 2008
Location: Queensland, Australia
Default

Thanks for the replies so far.

I was hoping there would be more discussion on nylon gears versus metal and things to watch out for due to additional vibrations from gasser engines.

Regards

Acrow
acrow is offline        Reply With Quote Quick reply to this message
Old 11-21-2012, 09:07 AM   #9 (permalink)
Registered Users
 

Join Date: Nov 2010
Location: Canada
Default

From what I have read, most of the time guys seems to use what they have laying around for throttle servo, and it's often plastic or carbonite gear. I read a few case of stripping metal gear, I can guess it's due to the gear ratling with vibration, but other have reported good success with metal gear, I can't comment further, I don't have any experience with this.

I would like to read here some experience with metal gear also.
__________________
T-rex 600E pro
T-rex 450L
Coaxial Collective Pitch 550
martin_ is offline        Reply With Quote Quick reply to this message
Reply




Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the HeliFreak forums, you must first register.
Please enter your desired user name, your REAL and WORKING email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself. Use a real email address or you will not be granted access to the site. Thank you.
Email Address:
Location
Where do you live? ie: Country, State, City or General Geographic Location please.
Name and Lastname
Enter name and last name here. (This information is not shown to the general public. Optional)
Helicopter #1
Enter Helicopter #1 type and equipment.
Insurance
Please select your insurance company (Optional)
Helicopter #2
Enter Helicopter #2 type and equipment.
Helicopter #3
Enter Helicopter #3 type and equipment.
Helicopter #4
Enter Helicopter #4 type and equipment.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On




Copyright © Website Acquisitions Inc. All rights reserved.
 

SEO by vBSEO 3.6.1