RCU Forums

RCU Forums (https://www.rcuniverse.com/forum/)
-   3D Flying! (https://www.rcuniverse.com/forum/3d-flying-82/)
-   -   Setting CG without having plans or specs ??? (https://www.rcuniverse.com/forum/3d-flying-82/10994774-setting-cg-without-having-plans-specs.html)

Taz_Hobbies 03-10-2012 06:31 PM

Setting CG without having plans or specs ???
 
I have one of these...
http://i1125.photobucket.com/albums/...d/108_6286.jpg
(have no idea what it is!)

48" span job with a little ASP .46 now on the nose. Would would be a good rule of thumb to get the CG set to?
I seem to remember 33% of the chord back from the leading edge was a good rule of thumb for sport type planes. Would this work on a stunt / 3D type?

Also, set the CG with the tank full, half or empty? What do you guys think?



k12rc 03-10-2012 07:09 PM

RE: Setting CG without having plans or specs ???
 
if you have a smart phone get the free app CG Calc v2 has a lot of useful info

zacharyR 03-10-2012 07:33 PM

RE: Setting CG without having plans or specs ???
 
look at that wing cord... just fly it ... it's none issue

ThumbSkull 03-10-2012 07:52 PM

RE: Setting CG without having plans or specs ???
 
Start at 33% of the wing chord measured at the root.

Jezmo 03-11-2012 06:11 AM

RE: Setting CG without having plans or specs ???
 
+1 for 33% to start. Adjust to your liking from there.

Taz_Hobbies 03-11-2012 08:15 AM

RE: Setting CG without having plans or specs ???
 
Thank you everyone. I was inclined to use the 33% as a starting point and I thank you for confirming. I appreciate it.

ThumbSkull 03-11-2012 09:07 AM

RE: Setting CG without having plans or specs ???
 
33% is a good starting point for 3D on any non-swept symmetrical wing.


All times are GMT -8. The time now is 11:35 PM.


Copyright 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.