Tube Fin CalculatorThe tube fin calculator is based on formulas provided by Rick Dunseith. It allows you to calculate tube fin or airframe diameters for any number of tube fins.
You can start with the diameter of your rocket's airframe (body tube) or the diameter of the tube fins you wish to use. If you supply the outside diameter of the airframe and the number of tube fines you desire, the calculator will return the outside diameter of the tube fins. If you supply the outside diameter of the tube fins and the number of tube fins you desire, the calculator will return the outside diameter of the airframe body tube to use. |
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