- Jan 20, 2009
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I'm in the process of building a mid/high power tube finned superroc. Is there a recommended size for tube fins? That is, is there a length to diameter ratio that is more/less effective? The tubes I'm using are ~2" with the overall airframe length close to 10' and visually I have decided that 1' tubes look pleasing. I have yet to jam this into Rocksim to see if it will be stable or not.