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Old Mar 08, 2013, 03:19 PM
Registered User
United States, CA, Los Angeles
Joined Feb 2013
8 Posts
Help!
Gws slowstick cg setting

Hi I just got back in the hooby and I had an old slowstick kit so I thought this would be good to learn to fly again.But this was with a brushed motor set-up and I wanted to update it to brushless.I was told about HeadsupRC and purchased there recomended setup for this plane.Now the fun begins,I found that the manual for this plane calls for 95mm to 105mm cg from leading edge.Well this is for the standard brushed power system now I am using lipo;s and a brushless motor.So my question is ,do I do what is in the manual or is there a better way to set-up the cg for my current sytem?
Also any info about the gws slowstick would be of help
Thanks!
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Old Mar 08, 2013, 07:57 PM
United States, MI, Auburn Hills
Joined Dec 2008
1,035 Posts
Cg

Quote:
Originally Posted by tom539 View Post
Hi I just got back in the hooby and I had an old slowstick kit so I thought this would be good to learn to fly again.But this was with a brushed motor set-up and I wanted to update it to brushless.I was told about HeadsupRC and purchased there recomended setup for this plane.Now the fun begins,I found that the manual for this plane calls for 95mm to 105mm cg from leading edge.Well this is for the standard brushed power system now I am using lipo;s and a brushless motor.So my question is ,do I do what is in the manual or is there a better way to set-up the cg for my current sytem?
Also any info about the gws slowstick would be of help
Thanks!
this is a great question. with the change in the motor and a little more weight for the battery, depending on battery placement, you might be a little nose heavy; however this is preferred over being tail heavy. I would start the CG on this at 100mm point and adjust accordingly. This is a very forgiving plane and you should be able to keep it under control while you trim it out and decide if the CG needs to be moved back or forward
Here is another post on RC Groups about CG Placement

Post on CG HERE

Max
www.parkrcmodels.com
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Old Mar 10, 2013, 08:46 PM
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United States, CA, Los Angeles
Joined Feb 2013
8 Posts
Thats what is happening,it is a little nose heavy at the 100mm mark.But it will level off around the 90mm spot.What do you think? fly it and see?
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Last edited by tom539; Mar 10, 2013 at 08:48 PM. Reason: reword
Old Mar 12, 2013, 07:30 PM
United States, MI, Auburn Hills
Joined Dec 2008
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Quote:
Originally Posted by tom539 View Post
Thats what is happening,it is a little nose heavy at the 100mm mark.But it will level off around the 90mm spot.What do you think? fly it and see?
Sounds like a good starting point

Max
www.parkrcmodels.com
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Old Mar 15, 2013, 06:55 PM
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United States, CO
Joined Feb 2013
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I noticed the instructions say to put the front wing mount at 135mm and another place in the instructions it says 145mm. Do I split the difference or is one better than the other? And for clarification, the 100mm would be from the leading edge of the wing?
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Last edited by Parkflying; Mar 16, 2013 at 02:20 AM.
Old Mar 16, 2013, 02:20 AM
United States, MI, Auburn Hills
Joined Dec 2008
1,035 Posts
Slowstick Help

Quote:
Originally Posted by LonB View Post
I noticed the instructions say to put the front wing mount at 135mm and another place in the instructions it says 145mm. Do I split the difference or is one better than the other? And for clarification, the 100mm would be from the leading edge of the wing?
Good Question. Checkout this discussion on another forum here on RC Groups.
SlowStick Discussion about CG and Wing Position Here


Max
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Old Mar 18, 2013, 12:16 PM
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United States, CO
Joined Feb 2013
291 Posts
Thanks but I could not decipher exact measurements from that post. I'm going to go with 145mm to wing LE and 90-100mm back from there. I had it this was at first and it flew good but would climb at the least little bit of wind. I'm going to switch my battery from 2S 1300 to 3S 1300 to add weight and see if that helps. I might have too much elevator in it too. I added ailerons too.
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Old Mar 25, 2013, 10:21 AM
John
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United States, CA, Heber
Joined Sep 2012
2,047 Posts
I went with the factory CG specs and I'm perfect. I'm using a Turnigy 28-36 750kv 10x7 slo-flo Great Planes prop, two hxt900 servos, and a nanotech 3S 1300 lipo. I'm actually thinking reconfiguring my set-up and using a larger battery for longer run times. With this motor I have no problems going vertical.
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Old Mar 25, 2013, 10:55 AM
Unregistered User
United States, CO
Joined Feb 2013
291 Posts
I've added ailerons and was flying with micro servos, micro receiver, 2S 1300mAh, Park 400, 10x4.7 and 10x7 props, stock lightweight wheels, etc.. and I think I'm way too light! The plane will pop 10' higher in the air with the slightest bit of breeze, lol! I'm going to through one of my 3S 2200mAh heli batteries on it and see what that does. I'm also going to add some nice big Dubro sport wheels and beefier landing gear to help make it heavier.
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Old Mar 25, 2013, 01:11 PM
John
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United States, CA, Heber
Joined Sep 2012
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I want to try a 3s 2700 battery that I use with my electrostik and future battery for my millennium X I'm building with a rimfire .10

Quote:
Originally Posted by LonB View Post
I'm also going to add some nice big Dubro sport wheels and beefier landing gear to help make it heavier.
I've got the X-gear with 3" Dubro sports for my SSX and they are nice and beefy.
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Old Mar 27, 2013, 01:52 PM
John
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United States, CA, Heber
Joined Sep 2012
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Used a 3S 2700,along with X-gear, and flew perfect. Quite a bit of air time too.
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Old Mar 29, 2013, 10:50 PM
United States, MI, Auburn Hills
Joined Dec 2008
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Quote:
Originally Posted by jk6672 View Post
Used a 3S 2700,along with X-gear, and flew perfect. Quite a bit of air time too.
All good news! Congrats

Max
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Old Jul 09, 2013, 06:30 PM
Unregistered User
United States, CO
Joined Feb 2013
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I added a 3S 2200mAh and mine flew perfect as well.
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Old Jul 10, 2013, 12:29 AM
United States, MI, Auburn Hills
Joined Dec 2008
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Quote:
Originally Posted by LonB View Post
I added a 3S 2200mAh and mine flew perfect as well.
Thanks for your feed back

Max
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