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Mano, Brandon Litherland3

10:57 AM

Unsymmetrical distribution of blades

You can achieve asymmetrical blade distribution, or non-uniform blade distribution using the More tab

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Unsymmetrical distribution of blades

You can achieve asymmetrical blade distribution, or non-uniform blade distribution using the More tab

10:57 AM

Julien, … Brandon Litherland6

Mar 6

Mesh Convergence on a Thin-Thick simulation

You're starting much too fine for your initial case to see any convergence. Start with something

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Mesh Convergence on a Thin-Thick simulation

You're starting much too fine for your initial case to see any convergence. Start with something

Mar 6

João Vitor Ribeiro Centeno, … Brandon Litherland5

Mar 6

Help with OpenVSP Python API

While you have Python running, either in console or an IDE, run "pip install -r requirements-dev

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Help with OpenVSP Python API

While you have Python running, either in console or an IDE, run "pip install -r requirements-dev

Mar 6

Carter Johnston, Rob McDonald4

Mar 6

Help needed with Issues with holes forming in mesh

That is a perfect application for using the area based density for the fuselage skin and then using

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Help needed with Issues with holes forming in mesh

That is a perfect application for using the area based density for the fuselage skin and then using

Mar 6

王明坤, … Rob McDonald6

Mar 5

Duct propeller use

OK,thank you! 在2026年3月5日星期四 UTC+8 10:25:06<Rob McDonald> 写道： Thrust and CT distributions are

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Duct propeller use

OK,thank you! 在2026年3月5日星期四 UTC+8 10:25:06<Rob McDonald> 写道： Thrust and CT distributions are

Mar 5

Thomas Pratt, Rob McDonald2

Mar 4

Control Surfaces in VSPaero

Are you using _ as a character in your Geom names and/or your Control Surface and/or Control Surface

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Control Surfaces in VSPaero

Are you using _ as a character in your Geom names and/or your Control Surface and/or Control Surface

Mar 4

Mar 4

OpenVSP 3.48.2 Released

Yesterday's haste to fix the problem with 3.48 caused some other problems. These are caused by

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OpenVSP 3.48.2 Released

Yesterday's haste to fix the problem with 3.48 caused some other problems. These are caused by

Mar 4

Erik Fougner Arnesen, … Rob McDonald7

Mar 4

VSPAERO data graphs

One possible stop gap solution could be adding a table, for the different parameters and their

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VSPAERO data graphs

One possible stop gap solution could be adding a table, for the different parameters and their

Mar 4

Erik Fougner Arnesen

Mar 4

Issues simulating vehicle with and without fuselage (3.47.0)

Hi, I been working on fixing the issues I have with my vehicle. When I simulate with the full vehicle

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Issues simulating vehicle with and without fuselage (3.47.0)

Hi, I been working on fixing the issues I have with my vehicle. When I simulate with the full vehicle

Mar 4

Omer Kandemir, Brandon Litherland5

Mar 4

VSPAero and PDT correct use case

I'm using 3.46. PDT itself does not create a mesh component but If I'm not mistaken vsp.

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VSPAero and PDT correct use case

I'm using 3.46. PDT itself does not create a mesh component but If I'm not mistaken vsp.

Mar 4

Mar 3

OpenVSP 3.48.1 Released

This is a quick bugfix release for a couple of issues that popped up. Thanks to Brian German and

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OpenVSP 3.48.1 Released

This is a quick bugfix release for a couple of issues that popped up. Thanks to Brian German and

Mar 3

Julius Carter, Rob McDonald2

Mar 3

VSPaero Simulation

Make sure your Propeller is in a Set and use that Set in VSPAERO (either thick or thin -- start with

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VSPaero Simulation

Make sure your Propeller is in a Set and use that Set in VSPAERO (either thick or thin -- start with

Mar 3

Simon Boudoux, Brandon Litherland2

Mar 2

Cd0 in VSPAERO and Parasite Drag tool

If you haven't yet, please search the Google Group for existing posts on this topic. If you still

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Cd0 in VSPAERO and Parasite Drag tool

If you haven't yet, please search the Google Group for existing posts on this topic. If you still

Mar 2

Federico Feraiorni, … Brandon Litherland17

Mar 2

Help STL model analysis

Hi Brandon, I followed your suggestions, but unfortunately, I haven't had any success yet. The

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Help STL model analysis

Hi Brandon, I followed your suggestions, but unfortunately, I haven't had any success yet. The

Mar 2

Federico Feraiorni, … Hans4

Mar 1

Info Tessellation

It seems that the vspaero doesn't perfectly cautch an impact of the body on the lift. I was

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Info Tessellation

It seems that the vspaero doesn't perfectly cautch an impact of the body on the lift. I was

Mar 1

Rob McDonald, Toshio Otaguro2

Feb 28

OpenVSP 3.48.0 Released

Rob, I confirmed that VSPAERO console font works fine on the ja-JP locale in Windows. Many thanks.

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OpenVSP 3.48.0 Released

Rob, I confirmed that VSPAERO console font works fine on the ja-JP locale in Windows. Many thanks.

Feb 28

Violet Philip, Rob McDonald2

Feb 28

XLEMAC in openVSP

You probably don't want to find your CG in a bottoms up way. There are so many parts to an

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XLEMAC in openVSP

You probably don't want to find your CG in a bottoms up way. There are so many parts to an

Feb 28

Steven Zhu, Rob McDonald6

Feb 19

Issue with VSPAERO via CLI: "Could not load Degen Geometry" error

On Thursday, February 19, 2026 at 6:15:25 PM UTC-8 zyx20...@gmail.com wrote: Thank you for the

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Issue with VSPAERO via CLI: "Could not load Degen Geometry" error

On Thursday, February 19, 2026 at 6:15:25 PM UTC-8 zyx20...@gmail.com wrote: Thank you for the

Feb 19

Guy Mullins, Rob McDonald2

Feb 19

Automation of VSPaero

It depends on how complex an automation framework you are working in. If you want to use OpenVSP /

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Automation of VSPaero

It depends on how complex an automation framework you are working in. If you want to use OpenVSP /

Feb 19

Nick Schneider, Rob McDonald3

Feb 18

Dihedral changes airfoil thickness

Thanks Rob, that did the trick! On Wednesday, 18 February 2026 at 18:47:08 UTC+1 Rob McDonald wrote:

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Dihedral changes airfoil thickness

Thanks Rob, that did the trick! On Wednesday, 18 February 2026 at 18:47:08 UTC+1 Rob McDonald wrote:

Feb 18

Julien, Rob McDonald2

Feb 16

Design Variables Constraints in Adjoint Optimizer

At present, there is no way to constrain design variables. Right now, the embedded optimizer is

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Design Variables Constraints in Adjoint Optimizer

At present, there is no way to constrain design variables. Right now, the embedded optimizer is

Feb 16

Carla Conejero Amarilla, Rob McDonald3

Feb 14

Stability derivatives

Thanks you Rob for the help. El viernes, 13 de febrero de 2026 a las 22:55:11 UTC+1, Rob McDonald

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Stability derivatives

Thanks you Rob for the help. El viernes, 13 de febrero de 2026 a las 22:55:11 UTC+1, Rob McDonald

Feb 14

Carl Johnson, Rob McDonald4

Feb 13

Potential bug with VSPAERO stability derivatives for supersonic solutions

I passed your report onto the VSPAERO developer. This is a bug. He realized the problem a while ago,

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Potential bug with VSPAERO stability derivatives for supersonic solutions

I passed your report onto the VSPAERO developer. This is a bug. He realized the problem a while ago,

Feb 13

Federico Feraiorni, Brandon Litherland7

Feb 12

Info custom VSPAERO settings

Brandon, thank you very much for your attention. For anyone having this exact question, I also

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Info custom VSPAERO settings

Brandon, thank you very much for your attention. For anyone having this exact question, I also

Feb 12

Calioth, Brandon Litherland6

Feb 12

Help with mismatch in CeRAS aircraft model.

Thanks very much! On Thursday, February 12, 2026 at 1:21:43 PM UTC Brandon Litherland wrote: CD0 in

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Help with mismatch in CeRAS aircraft model.

Thanks very much! On Thursday, February 12, 2026 at 1:21:43 PM UTC Brandon Litherland wrote: CD0 in

Feb 12

Valentin Le Bailly, Rob McDonald2

Feb 11

Spanwise definition control surfaces Python API

3.26.1 is from January of 2022 -- four years old. OpenVSP development is very fast considering the

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Spanwise definition control surfaces Python API

3.26.1 is from January of 2022 -- four years old. OpenVSP development is very fast considering the

Feb 11

Julien, Brandon Litherland6

Feb 11

module 'openvsp' has no attribute 'VORTEX_LATTICE'

Thanks for the answer! On Tuesday, February 10, 2026 at 6:57:35 PM UTC+1 Brandon Litherland wrote: If

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module 'openvsp' has no attribute 'VORTEX_LATTICE'

Thanks for the answer! On Tuesday, February 10, 2026 at 6:57:35 PM UTC+1 Brandon Litherland wrote: If

Feb 11

Cindy Chen, Rob McDonald11

Feb 10

spikes at wingtips in panel method solution

Thank you for pointing out the blunt trailing edges, Rob. I sharpened them for all sections and am

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spikes at wingtips in panel method solution

Thank you for pointing out the blunt trailing edges, Rob. I sharpened them for all sections and am

Feb 10

Rob McDonald, Mike Novikov6

Feb 8

Adjoint driven optimization in VSPAERO

Thank you for your time, Rob and Dave! Sorry for bothering you(( пятница, 6 февраля 2026 г. в 22:20:

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Adjoint driven optimization in VSPAERO

Thank you for your time, Rob and Dave! Sorry for bothering you(( пятница, 6 февраля 2026 г. в 22:20:

Feb 8

Feb 8

Help with data mismatch

Hello everyone, I am currently working on a project that involves reproducing the CeRAS CSR-01 Model

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Help with data mismatch

Hello everyone, I am currently working on a project that involves reproducing the CeRAS CSR-01 Model

Feb 8

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