[NRVR-Members] Adding Nose Weight in OpenRocket

Kevin Paar kevinpaar at gmail.com
Sat Mar 26 06:04:43 CDT 2016

On the design tree on the upper left you may see mass and/or CG symbols on any level. If those symbols are on a level it means a mass and/or CG override has been applied at that level. In your tree I see a CG override at the "stage" level, so that's locking in the CG for the whole the rocket. Eliminating that should make the CG track changes. Alternatively you could just modify that to match reality.

And yes, I slammed my head into the keyboard for a while with the exact same problem.

-- Kevin

> On Mar 25, 2016, at 2:11 PM, Thomas (Tweeks) Weeks <tweeks at rackspace.com> wrote:
> Honestly.. I'm still getting used to OpenRocket for doing actual design tweaking.. and am simply trying to add nose weight to shift my CG up on a kit I'm flying tomorrow and am having a bit of a problem getting it to adjust my actual CG. 
> I've added the weight (16oz as a test), and tinkered with the mass override.. but can't get the CG to actually shift. Is there some magic button somewhere that "applies" it to the new CG calculation? I even played with the override CG buttons (though that needs to be a DEPENDANT variable.. I don't want to SET it).. but still can't get the CG to budge. 
> Photo:
> http://theweeks.org/tmp/PICS/ROCKETS/OpenRocket_adding-nose-weight.png
> What am I doing wrong in OpenRocket? The wiki docs are not that informative.
> Tweeks
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