You mean like this?
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Or this?
View attachment 481342
You find a tutorial, and experiment....
https://www.rocketryforum.com/threads/kteshs-openrocket-tutorials.62884/post-1595653
OR's flight performance will likely be skewed somewhat by the extra surface area that has been "buried" inside the body tube. If you can get your fin to meet its Phantom Body Tube (PBT) at a single point (first and last coordinate being 0.0 /0.0) (for the rear one it might be actually 0.0001/0.0), the less "extra" you'll have, and the more accurate OR's sims should be. That said, I don't know (or do) the maths behind OR's calculations so I can't vouch for how accurate or inaccurate the sim will be for dealing with the boattail. Basically, my logic is the more accurate the info you can give the program, the more likely the info you get out of it will be accurate, within the capabilities of the program (the opposite of "Garbage in, garbage out.").OK K'Tesh, using the ghost tube method, it looks like this. Are there any issues that you know of with this method regarding the sim calcs? For example, the fins are attached below the airframe so the span is reduced unless you compensate (which I did). Anything else to be aware of? Thanks.
Been waiting on this version for a long time, then maybe I can get my Nike Hercules noseweighted properly.You can also try to track down a pre-release version of the new "it's gonna get released any time now" OR version. It does fins on noses and transitions natively so you don't need the weird tricks.
Keep in mind that you have to have the right version of Java to get it to work properly, and the right version of Java *MIGHT* break 15.03You can also try to track down a pre-release version of the new "it's gonna get released any time now" OR version. It does fins on noses and transitions natively so you don't need the weird tricks.
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