VSPAero Crashes (3.45.5) with fairly simple geometries?

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Charlie Raskopf

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Sep 30, 2025, 1:00:03 AM (11 days ago) Sep 30
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Crash error code 3221225725
I've tried eliminating objects until I can get a real result, nothing's worked. 
Can anyone take a look and explain what's wrong? 
I'm a total noob to this, I had no issues with the pre-update VSPAero. 
Thanks, 
Charlie. 
UAVv3.vsp3

Rob McDonald

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Sep 30, 2025, 1:47:41 PM (10 days ago) Sep 30
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Please go watch the VSPAERO videos from the recent OpenVSP Workshop.


Those videos will give you a lot of clues for how to have success.

Next, always start simple and build up to more complex.  Start with just a wing, do some analysis, move up from there.

For starters, you have all of the geometry in both the Thin and Thick sets.  You don't want this.  Each component should be either in the thin set or the thick set (or not at all).

Next, your mesh resolution is all over the place.  Your wing is very coarse -- while your nacelles and propeller are very fine.

Finally, you have the propellers included in the model, but with 'Static Non-Rotating Blades' selected.  This is unlikely what you want.

To start simple, start without the propellers in any analysis Set.  If you want to add them, then consider moving up to the actuator disk model.

Only use the pseudo steady or steady rotating blades modes if you are confident that you need that kind of analysis detail (you don't).

Rob



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