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Want a cheap rocket that can survive super sonic speeds (Mach 1, the speed of sound, is approximately 761 mph at sea level)? The Apogee Aspire is a prefect rocket for this task. It is minimum diameter for 29mm diameter high-thrust rocket engines, and it has a sleek shape that is just made for cutting quickly through the air. In this publication, you'll be shown you how to take the stock Apogee Aspire kit, and with a few simple modifications turn it into a supersonic cruising model. How? You don’t...