The Nike Smoke used a Nike Ajax/Hercules booster, of which there were thousands made. Unlike liquids, where they could just exend them by welding in a section of airframe and doing the same with the tanks, the solid booster would have to be cast with different grain geometry and a different nozzle if it were to be made longer. That wasn't an economical option. When they needed more juice, they moved up to other boosters such as the Honest John.

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