How to Calculate C.G. and mass properties of aircraft in batch mode?

[Amrith Surendra]

Hello,

 

I am trying to calculate the C.G. position and the mass properties (Ixx, Iyy, etc.) of my aircraft in batch mode, however I can’t seem to find the command that executes this in batch mode.

Also I am trying to define the density of the fuselage, wings, tail, etc. using script, but the command is not recorded when I change the density. Any help or assistance on these subject matters would be great thanks.

 

Amrith.

 

 

[Rob McDonald]

Amrith,

You are correct, the mass properties calculation is not currently
supported in batch mode directly.

I've made the required changes so mass properties are available from
batch mode to the 'Fixes' branch at GitHub. If you are comfortable
building VSP from source, you can download this version and try it
out.

https://github.com/ramcdona/OpenVSP/tree/Fixes

In the meantime, the mass properties calculation is supported by the
script functionality -- and you can run a script in batch mode. So,
you should be able to get what you need that way.

Otherwise, we are planning on releasing a new version of VSP in the
near future. This fix will be in that next version.

You are also correct that there are a number of VSP features and
operations which are not supported by the script functionality. If
you are comfortable making those kinds of changes, the missing items
aren't too difficult to add. We would love to have those
contributions.

In the meantime, you can always parse and modify the *.vsp file
directly to change any value you need.

Best,

Rob