Simulating tube fins in Open Rocket?

[rocketgeek101]

What is the most accurate way of simulating tube fins in OR??

I'm toying around with the idea of building a tube fin rocket, but want to make sure it will be stable before I commit to building it.

 

[blackbrandt]

Download the sample version of RS. I tried it, and the rocket was perfectly stable.

 

[DJDeadParrot]

From what I've read on this very subject, you should be able to calculate tubes as fin if the tubes were flattened out in one layer [i.e. not "smashed" down double-thick]. For instance, if your fins are six 3" sections of BT-50, you'd calculate them as six fins, 3 inches long by ~3.14 inches wide.

Your mileage may vary. Check local listings. No purchase necessary.

 

[rstaff3]

This page explains how to simulate tube fins with a set of appropriately sized 'normal' fins: https://www.apogeerockets.com/RockSim/Simulating_tubes_fins_in_RockSim