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This booster turns your Praetor rocket (sold separatley) into a two-stage rocket. Providing a very nice profile as a combined craft, the combination of the booster plus the Praetor gives this stack the look of a military air-to-air or surface-to-air missile.

As with the Praetor model, you will be cutting trapezoid fins from provided balsa stock. Also, some modification may be needed to the stage coupler depending on how closely you followed the instructions in building your Praetor model. All of this, and more, is covered in the instructions for the booster.