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1:08 PM

Stability, controllability and Handling characteristics

Hello everyone, I don't know if somebody is cooking it already but I would do "something

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Stability, controllability and Handling characteristics

Hello everyone, I don't know if somebody is cooking it already but I would do "something

1:08 PM

Jul 2

uploading a copy of an aircraft design - apologies for cheesy name i have 2 problems: - cant find the

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uploading a copy of an aircraft design - apologies for cheesy name i have 2 problems: - cant find the

Jul 2

Shakil Salim, Koaib Kaleem2

Jul 2

Questions regarding mesh control, VSPAERO settings, and best practices for drag/performance analysis

I am looking for answers to these questions too, for mesh convergence studies, (by tessalations) you

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Questions regarding mesh control, VSPAERO settings, and best practices for drag/performance analysis

I am looking for answers to these questions too, for mesh convergence studies, (by tessalations) you

Jul 2

marco, … Shakil Salim22

Jul 1

prandtl-d wing with bell shaped lift distribution in VSPAERO

Does anyone know the main differences between the Prandtl-D1, D2, and D3c models? Thanks, Shakil On

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prandtl-d wing with bell shaped lift distribution in VSPAERO

Does anyone know the main differences between the Prandtl-D1, D2, and D3c models? Thanks, Shakil On

Jul 1

Jul 1

Sydney Standard Aerodynamic Models (SSAM) Fifth Generation Benchmark Model Aircraft

Hi everyone, Has anyone developed the vsp cad model of SSAM Fifth generation aircraft model (https://

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Sydney Standard Aerodynamic Models (SSAM) Fifth Generation Benchmark Model Aircraft

Hi everyone, Has anyone developed the vsp cad model of SSAM Fifth generation aircraft model (https://

Jul 1

Jun 29

OpenVSP 3.51.0 Released

Mid-summer OpenVSP (at least in the Northern Hemisphere) -- a handful of features and some nice bug

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OpenVSP 3.51.0 Released

Mid-summer OpenVSP (at least in the Northern Hemisphere) -- a handful of features and some nice bug

Jun 29

Steve, Rob McDonald10

Jun 29

Problem with CDtot values

I somehow still get these unreasonable results, although I have used it repeatedly. I'm on a

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Problem with CDtot values

I somehow still get these unreasonable results, although I have used it repeatedly. I'm on a

Jun 29

Jun 29

OpenVSP crashes after clicking Wave Drag analysis

Hello, I am using OpenVSP 3.48.2 to analysis wave drag, and it crashes instantly after clicking Wave

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OpenVSP crashes after clicking Wave Drag analysis

Hello, I am using OpenVSP 3.48.2 to analysis wave drag, and it crashes instantly after clicking Wave

Jun 29

Yasushi Morikawa, Brandon Litherland3

Jun 28

Problem of mesh

Thank you for your kind reply. 2026年6月27日土曜日 7:38:04 UTC+9 Brandon Litherland: 8f everything ran to

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Problem of mesh

Thank you for your kind reply. 2026年6月27日土曜日 7:38:04 UTC+9 Brandon Litherland: 8f everything ran to

Jun 28

Shakil Salim, Rob McDonald7

Jun 28

Control surface issue

Putting the wing in the Thin Set and the body in the Thick Set is a very reasonable approach -- that

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Control surface issue

Putting the wing in the Thin Set and the body in the Thick Set is a very reasonable approach -- that

Jun 28

Edward Pickens, Rob McDonald2

Jun 26

Box wing optimization

I would likely work with a single wing wrapped around -- that should take care of most of the

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Box wing optimization

I would likely work with a single wing wrapped around -- that should take care of most of the

Jun 26

rao jiexi, Rob McDonald2

Jun 26

Ground-Effect Vehicle Model in OpenVSP

Have you tried making a model? The whole point of OpenVSP is that it should be easy to make a model,

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Ground-Effect Vehicle Model in OpenVSP

Have you tried making a model? The whole point of OpenVSP is that it should be easy to make a model,

Jun 26

Koaib Kaleem, Rob McDonald5

Jun 25

Multi Resolution NGon

Right, got the point. Will check out the tesselation setting approach. thank you for the guidance On

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Multi Resolution NGon

Right, got the point. Will check out the tesselation setting approach. thank you for the guidance On

Jun 25

Mike Vivaldi, Rob McDonald14

Jun 24

With stall model CLtot decreases with AOA as AOA increases from negative to positive

Hi Rob, Yup, switching it to thin removes the spikes on XZ symmetry. Thanks, Mike On Wednesday, June

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With stall model CLtot decreases with AOA as AOA increases from negative to positive

Hi Rob, Yup, switching it to thin removes the spikes on XZ symmetry. Thanks, Mike On Wednesday, June

Jun 24

Koaib Kaleem, … Brandon Litherland15

Jun 22

Parametric NASA Almond Geometry

right, will try On Monday, June 22, 2026 at 6:33:17 PM UTC+5 Brandon Litherland wrote: I would

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Parametric NASA Almond Geometry

right, will try On Monday, June 22, 2026 at 6:33:17 PM UTC+5 Brandon Litherland wrote: I would

Jun 22

Jun 20

Help to use VSPAERO files

Hello, We are currently working on the stability and flight dynamics analysis of a fixed-wing UAV

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Help to use VSPAERO files

Hello, We are currently working on the stability and flight dynamics analysis of a fixed-wing UAV

Jun 20

Maria Żelewska, Rob McDonald2

Jun 20

Simulating hypersonic flow

No, VSPAERO can only model linearized supersonic flow. Similarly, the wave drag calculation is based

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Simulating hypersonic flow

No, VSPAERO can only model linearized supersonic flow. Similarly, the wave drag calculation is based

Jun 20

Koaib Kaleem, Rob McDonald5

Jun 20

Edge length in stl

right thx On Saturday, June 20, 2026 at 12:42:20 AM UTC+5 Rob McDonald wrote: It just depends on what

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Edge length in stl

right thx On Saturday, June 20, 2026 at 12:42:20 AM UTC+5 Rob McDonald wrote: It just depends on what

Jun 20

Sofia Georgiou, … Thirumalai A7

Jun 19

problem with importing airfoil files

I've had some issues with importing Airfoil files as well, and what has worked for me is to copy/

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problem with importing airfoil files

I've had some issues with importing Airfoil files as well, and what has worked for me is to copy/

Jun 19

Brandon Litherland

Jun 17

Re: Convergence Factors Clarification

There are no tutorials or documentation other than the source code and parameter descriptions for

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Re: Convergence Factors Clarification

There are no tutorials or documentation other than the source code and parameter descriptions for

Jun 17

Luke Young, Brandon Litherland2

Jun 16

You can run this mode from the vspaero command line (-quasi option) or via the GUI as Pseudo Steady

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You can run this mode from the vspaero command line (-quasi option) or via the GUI as Pseudo Steady

Jun 16

Jun 9

Inertia Problem Ixz

Good morning, I have a question regarding the computations of Inertia using MassProps. When I created

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Inertia Problem Ixz

Good morning, I have a question regarding the computations of Inertia using MassProps. When I created

Jun 9

Jun 7

openvsp elevons and hinge add

Hello Everyone, Can anyone help me set up a control surface in OpenVSP? I am trying to model an

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openvsp elevons and hinge add

Hello Everyone, Can anyone help me set up a control surface in OpenVSP? I am trying to model an

Jun 7

Jun 5

OpenVSP 3.50.5 Released

Just in time for AIAA AVIATION, a mostly bugfix release with a couple of small enhancements too. I

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OpenVSP 3.50.5 Released

Just in time for AIAA AVIATION, a mostly bugfix release with a couple of small enhancements too. I

Jun 5

Brandon Litherland, … Daniel E.8

Jun 5

VSP Airshow Information Missing

I just tried "sign in with email" with my work email in Outlook and I did receive the email

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VSP Airshow Information Missing

I just tried "sign in with email" with my work email in Outlook and I did receive the email

Jun 5

Hiroshi Ohsato, … Brandon Litherland4

Jun 5

the way to convert OpenVSP file (.vsp3 file) to DATCOM data

There are no updates. I suspect that anyone running into this issue has already followed Rob's

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the way to convert OpenVSP file (.vsp3 file) to DATCOM data

There are no updates. I suspect that anyone running into this issue has already followed Rob's

Jun 5

Iordanis Sapidis, Rob McDonald14

Jun 4

OpenVSP 3.50.4 VSPAERO crashes with default wing

Yeah this version seems much more stable, thanks. On Wednesday, 3 June 2026 at 19:03:13 UTC+3 Rob

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OpenVSP 3.50.4 VSPAERO crashes with default wing

Yeah this version seems much more stable, thanks. On Wednesday, 3 June 2026 at 19:03:13 UTC+3 Rob

Jun 4

Christian Hauschel, Rob McDonald6

Jun 2

VSPAERO TE Detection Fail

It is tolerance related, but not in an expected way. For some reason, you have TE closure turned ON

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VSPAERO TE Detection Fail

It is tolerance related, but not in an expected way. For some reason, you have TE closure turned ON

Jun 2

Billy Stewart, Rob McDonald5

Jun 2

Yes, all bodies must be individually watertight for CompGeom to work properly. The Stack component

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Yes, all bodies must be individually watertight for CompGeom to work properly. The Stack component

Jun 2

Shakil Salim, Rob McDonald2

Jun 2

Seeking Expert Advice: Verifying Bell-Shaped Lift Distribution (BSLD) in OpenVSP

Any wing planform can be twisted to match any desired lift distribution at one operating condition (

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Seeking Expert Advice: Verifying Bell-Shaped Lift Distribution (BSLD) in OpenVSP

Any wing planform can be twisted to match any desired lift distribution at one operating condition (

Jun 2

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