Go Back  RCU Forums > RC Airplanes > Giant Scale Aircraft - General
Reload this Page >

Servos for Spacewalker 120

Notices
Giant Scale Aircraft - General Discuss all other giant scale aircraft here.

Servos for Spacewalker 120

Old 04-03-2009, 11:20 AM
  #1  
R. Ortiz
Thread Starter
 
Join Date: Dec 2006
Location: Brownsville, TX
Posts: 44
Likes: 0
Received 0 Likes on 0 Posts
Default Servos for Spacewalker 120

This is my first big airplane. I want to build the Seagull Models SpaceWalker 120 wth a 26cc gasoline engine. The plane takes six servos (two for ailons, two for elevator, one for rudder and one for throttle). My question is, what is the servo torque required for an aircraft this size. I will be using a 4.8 volt system. I appreciate any info you can provide.
Old 04-04-2009, 08:56 AM
  #2  
Don M.
Senior Member
My Feedback: (5)
 
Don M.'s Avatar
 
Join Date: Mar 2004
Location: Halifax, NS, CANADA
Posts: 1,848
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Servos for Spacewalker 120

I had a Great Planes 120 size Spacewalker / OS 120 4-Stroke. I used some old Futaba 9202's ( plastic gears ) I had kicking around and never a problem. I was using 6 volts so the servo torque would be in the 80 - 90 oz. in. range. Anything around this with a strong plastic or metal gear set would do.
Old 04-05-2009, 12:52 AM
  #3  
custards1
Senior Member
 
Join Date: Jan 2007
Location: melbourne, AUSTRALIA
Posts: 175
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Servos for Spacewalker 120

If you are using a gas motor dont use plastic geared servos. get some metal geared servos maybe like a hitec 645mg at minimum
Old 04-05-2009, 06:20 AM
  #4  
jbess
Junior Member
 
Join Date: Aug 2007
Location: Waterbury, CT
Posts: 25
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Servos for Spacewalker 120

Hi. I have the Seagull models 120 spacewalker and I put a g22 on it. I used Futaba s3010 servos for all surfaces and a s3001 for throtle. At standard 4.8 volts the 3010s will yeild 72oz of torque. At 6 volts they are 90 oz.

I also made a hatch in the bottom of fuselage just forward of tail where antenna exits for battery and some weight to offset g22 for cg. hope this helps.
Old 04-05-2009, 08:15 AM
  #5  
Zippi
My Feedback: (10)
 
Zippi's Avatar
 
Join Date: Jun 2004
Location: Evansville, IN
Posts: 4,977
Likes: 0
Received 1 Like on 1 Post
Default RE: Servos for Spacewalker 120

A buddy of mine just maidend his two weeks ago and he is running an XYZ 26cc gasser and running Hitec 635 servos all around except the rudder he has a 645. This plane is a real floater.

Posting Rules
You may not post new threads
You may not 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


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.