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Yeah from memory the free form fins are stored as a bunch of coordinates so it’s easy just to pull those out. The trapezoid fins are stored as various dimensions, you’d have to recalculate those into points to recreate the shape. FYI I believe the sim calculations are more accurate for the...

Try this thread 'Export List of Points from Openrocket?' https://www.rocketryforum.com/threads/export-list-of-points-from-openrocket.133968/post-1655541

RasAero II CD curve into OR was part of why I originally wanted to make the plugin. Is easy to do.

I did get some feed back privately and I thought I should share what I have observed. This relates to using a new CD curve. The Step setting in the simulation options seems to cause inaccuracies, try make this at least 10 times smaller. Similarly, the CD data curve needs to be as fine as...

For those unfamiliar the plugin, it has a multiplier option.

If your looking for additional flexibility with altering the CD you can also use the CD Override plugin, which has now been updated for OR 22.02. https://www.rocketryforum.com/threads/changing-cd-in-openrocket.139708/post-2417926

With the new Open Rocket version 22.02 having been released, some modifications were required for the CD Override plugin to work. Please find attached version 3 of the pluging that is compatable with the new version. As usual I am keen to hear any feedback.

I’m going with... https://www.onebadhawk.com/altimeter-three.html

I like this and I particularly like that they are doing legitimate scientific research, not just a bunch of tourists.

Thanks for the details Chuck, I appreciate that a lot of work goes into building programs such as RASAero. I have in the past brought up the idea of enhancing the motor files to include nozzle exit size. So I’m curious as to if you think other details could be useful? Of course the practicality...

Hi Theo, glad that the plugin can be useful to you. OR utilises listeners for its plugins. At various points as the program steps through the simulation the plugin can be called and will have access to various fields within the simulation which it can read and update. In the case of the CD...

As promised, attached is the spreadsheet (with macros) that I used to do the conversion. I have also attached a zipped document with details as to how to perform the conversion process. Please note that this is really a development in progess so you may have issues using it. If other people want...

Looks really good Dan, yes the track width can be altered. I’m not sure but you maybe able to do that with GE. Possibly you could alter the kml file in a text editor. If not I can alter the extract to do this. Unfortunately I have been very busy on a new project at work as well as wife having to...

Yeah, I wanted to do a flight with the fix that proves I have actually solved the problem, so to be safe I’m after a setting to make sure a reoccurrence does not result in another early deployment. I’ve gone over the configuration settings and came up with the following 3 solutions. Option 1 -...

X Wing trial flight happened last Sunday, didn’t all go to plan. For details of the build and want went wrong head over to the build thread. https://forum.ausrocketry.com/viewtopic.php?f=10&t=6017&start=45#p73866

Kevin, yes a vent issue was the conclusion I came to. It’s an X Wing, they have an unusual shaped nose. My plan is to relocate the vent to the back of the nose which is shaped more like a traditional nose cone, however I was thinking I should probably look at changing the configuration of the...

Ok, attached is the updated file. It is a lot better on the ascent but gets jumpy on descent. I fixed the units, it looks a lot less vertical now. I am reluctant to give you the spreadsheet that does the conversion as bits of it do not work or are untested. It would help if I had the original...

Attached is a flight from last week that had a deployment at burn out. I am pretty sure I know why but would like a second opinion.

That doesn’t look good to me. One thing to be careful of is that stability is dynamic over the flight. Suggest you post the graph stability vs time